Circuit physiological properties
This sub-section examines the circuit-level physiology of the reconstructed microcircuit against relevant literature.
Several experimental protocols were replicated in silico to benchmark the network physiology of the reconstructed microcircuit. Properties that were evaluated include the frequency of network oscillations, laminar activity propagation, thalamocortical innervation, and excitation-inhibition balance.
The results of the consistency check were categorized as consistent, inconsistent, possibly consistent, not implemented or not applicable based on agreement with a given evaluation criterion.
5 paper(s) | |
0 paper(s) | |
3 paper(s) | |
28 paper(s) | |
10 paper(s) |
consistent - Randy M. Bruno and Bert Sakmann - Cortex is driven by weak but synchronously active thalamocortical synapses
- input/validation/consistent
- consistent
- evaluation criterion
- anatomy and physiology of thalamocortical innervation
- id
- 1
- species
- rat
- age
- brain region
- somatosensory cortex
- layer
- 4
- cell
- aspect
- thalamocortical pathway
- key result(s)
- thalamocortical synapses have low efficacy but are numerous and synchronous
- pmid
- 16778049
- title
- Cortex is driven by weak but synchronously active thalamocortical synapses
- contact Name
- Randy M. Bruno and Bert Sakmann
- contributed by
- Yihwa Kim
- checked by
- SR
consistent - Dirk Feldmeyer - Excitatory signal flow and connectivity in a cortical column: focus on barrel cortex.
- input/validation/consistent
- consistent
- evaluation criterion
- patterns of laminar excitation flow
- id
- 2
- species
- rat
- age
- review
- brain region
- barrel cortex
- layer
- All
- cell
- PC
- aspect
- excitatory signal flow
- key result(s)
- Excitatory signal flow and connectivity in a cortical column: focus on barrel cortex
- pmid
- 17717695
- title
- Excitatory signal flow and connectivity in a cortical column: focus on barrel cortex.
- contact Name
- Dirk Feldmeyer
- contributed by
- MPG
- checked by
- SR
consistent - Michael S. Jones, Kurt D. MacDonald, Byung Ju Choi, F. Edward Dudek, and Daniel S. Barth - Intracellular correlates of fast (>200 Hz) electrical oscillations in rat somatosensory cortex.
- input/validation/consistent
- consistent
- evaluation criterion
- fast oscillations and evoked potentials
- id
- 3
- species
- rats (male)
- age
- 250-350 (~p59-77)
- brain region
- somatosensory cortex
- layer
- cortex
- cell
- aspect
- Intracellular Correlates of Fast (>200 Hz) Electrical Oscillations
- key result(s)
- fast oscillations define preferred latencies for action potential generation in cortical Regular Spiking cells. Very Fast Oscilations are generated by inhibitory interneurons
- pmid
- 10980023
- title
- Intracellular correlates of fast (>200 Hz) electrical oscillations in rat somatosensory cortex.
- contact Name
- Michael S. Jones, Kurt D. MacDonald, Byung Ju Choi, F. Edward Dudek, and Daniel S. Barth
- contributed by
- Dimitri Christodoulou
- checked by
- SR
consistent - Connors, BW - Synaptic basis for intense thalamocortical activation of feedforward inhibitory cells in neocortex.
- input/validation/consistent
- consistent
- evaluation criterion
- physiology of thalamocortical innervation
- id
- 4
- species
- mouse
- age
- p13-p18
- brain region
- S1
- layer
- 4
- cell
- IN
- aspect
- Thalamocortical responses
- key result(s)
- Circuit dynamics allowed feedforward inhibition to suppress responses in excitatory cells more effectively than in interneurons. Thalamocortical excitatory currents rose quickly in interneurons, allowing them to fire action potentials before significant feedforward inhibition emerged.
- pmid
- 17334362
- title
- Synaptic basis for intense thalamocortical activation of feedforward inhibitory cells in neocortex.
- contact Name
- Connors, BW
- contributed by
- SR
- checked by
- SR
consistent - Luhmann, HJ - Thalamic Network Oscillations Synchronize Ontogenetic Columns in the Newborn Rat Barrel Cortex.
- input/validation/consistent
- consistent
- evaluation criterion
- Contribution of thalamic afferents to gamma oscilattions
- id
- 5
- species
- rat
- age
- p0-p7
- brain region
- S1
- layer
- cell
- Int & PC
- aspect
- network oscillations
- key result(s)
- Gamma bursts synchronized a cortical network of 300-400 µm in diameter and were coherent with gamma activity recorded simultaneously in the thalamic ventral posterior medial (VPM) nucleus
- pmid
- 22593243
- title
- Thalamic Network Oscillations Synchronize Ontogenetic Columns in the Newborn Rat Barrel Cortex.
- contact Name
- Luhmann, HJ
- contributed by
- SR
- checked by
- SR
not applicable - Callaway, E - Functional specialization of seven mouse visual cortical areas.
- input/validation/consistent
- not applicable
- evaluation criterion
- not applicable - orientation selectivity study
- id
- 6
- species
- mouse
- age
- adult
- brain region
- V1
- layer
- L2/3
- cell
- IN, PC
- aspect
- connectivity in V1
- key result(s)
- Mouse higher visual areas are functionally distinct, and separate groups of areas may be specialized for motion-related versus pattern-related computations, perhaps forming pathways analogous to dorsal and ventral streams in other species.
- pmid
- 22196338
- title
- Functional specialization of seven mouse visual cortical areas.
- contact Name
- Callaway, E
- contributed by
- SR
- checked by
- SR
not applicable - Marcel Oberlaender - Simulation of signal flow in 3D reconstructions of an anatomically realistic neural network in rat vibrissal cortex.
- input/validation/consistent
- not applicable
- evaluation criterion
- Simulation study by the Sakmann group
- id
- 7
- species
- rat
- age
- -
- brain region
- Vibrissal cortex
- layer
- cell
- all
- aspect
- Signal flow in 3D realistic neural network
- key result(s)
- Our simulations provide insights of how anatomical parameters, such as the subcellular organization of synapses, may constrain spiking responses at the cellular and network levels
- pmid
- 21775101
- title
- Simulation of signal flow in 3D reconstructions of an anatomically realistic neural network in rat vibrissal cortex.
- contact Name
- Marcel Oberlaender
- contributed by
- Rajnish
- checked by
- SR
not applicable - Roger D Traub - Single-column thalamocortical network model exhibiting gamma oscillations, sleep spindles, and epileptogenic bursts.
- input/validation/consistent
- not applicable
- evaluation criterion
- Theoretical study by Roger Traub
- id
- 8
- species
- Rat
- age
- adult
- brain region
- primary and secondary auditory regions
- layer
- all layers
- cell
- all layer
- aspect
- largest simulated cortical column
- key result(s)
- Electrical coupling between axons appears necessary for persistent gamma and additionally plays a role in the detailed shaping of epileptogenic events
- pmid
- 15525801
- title
- Single-column thalamocortical network model exhibiting gamma oscillations, sleep spindles, and epileptogenic bursts.
- contact Name
- Roger D Traub
- contributed by
- Rajnish
- checked by
- SR
not implemented - Connors, BW - A network of electrically coupled interneurons drives synchronized inhibition in neocortex.
- input/validation/consistent
- not implemented
- evaluation criterion
- Gap junctions and cholinergic modulation are currently not implemented
- id
- 9
- species
- rat
- age
- p14-p21
- brain region
- S1
- layer
- 4
- cell
- RS, FS, LTS
- aspect
- Thalamocortical responses
- key result(s)
- Synchronized LTS activity required electrical synapses, but not fast chemical synapses. Tetanic stimulation of local circuitry induced effects similar to those of metabotropic agonists. We conclude that an electrically coupled network of LTS interneurons can mediate synchronized inhibition when activated by modulatory neurotransmitters.
- pmid
- 10966621
- title
- A network of electrically coupled interneurons drives synchronized inhibition in neocortex.
- contact Name
- Connors, BW
- contributed by
- SR
- checked by
- SR
not implemented - Korngreeen, B - Cellular and network contributions to excitability of layer 5 neocortical pyramidal neurons in the rat.
- input/validation/consistent
- not implemented
- evaluation criterion
- A model of the extracellular space to study the effect of bath manipulations is yet to be implemented in the reconstructed microcircuit
- id
- 10
- species
- rat
- age
- p13-p15
- brain region
- S1
- layer
- 5
- cell
- TTL5
- aspect
- Excitability
- key result(s)
- Both cellular and network changes may contribute to the observed effects of slice excitation solutions on the physiology of single neurons.The data suggests that the difference in the ionic composition of current standard ACSF from that of CSF measured in vivo cause ACSF to depress network activity in acute brain slices
- pmid
- 18030343
- title
- Cellular and network contributions to excitability of layer 5 neocortical pyramidal neurons in the rat.
- contact Name
- Korngreeen, B
- contributed by
- SR
- checked by
- SR
not implemented - Stuart, GJ - Cholinergic inhibition of neocortical pyramidal neurons.
- input/validation/consistent
- not implemented
- evaluation criterion
- Cholinergic innervation is currently not implemented
- id
- 11
- species
- rat
- age
- adult
- brain region
- S1
- layer
- 5
- cell
- PC
- aspect
- Neuromodulation
- key result(s)
- Transient activation of M1-type muscarinic receptors induces calcium release from IP3-sensitive intracellular calcium stores and subsequent activation of an apamin-sensitive, SK-type calcium-activated potassium conductance
- pmid
- 16267239
- title
- Cholinergic inhibition of neocortical pyramidal neurons.
- contact Name
- Stuart, GJ
- contributed by
- SR
- checked by
- SR
not implemented - Stuart, GJ - Heterogeneity of phasic cholinergic signaling in neocortical neurons.
- input/validation/consistent
- not implemented
- evaluation criterion
- Cholinergic innervation is currently not implemented
- id
- 12
- species
- rat
- age
- p15-p17
- brain region
- pfC, S1, V1
- layer
- 2/3,5
- cell
- PC
- aspect
- Neuromodulation
- key result(s)
- Focal ACh application (100 µM) inhibited layer 5 pyramidal neurons in all cortical areas via activation of an apamin-sensitive SK-type calcium-activated potassium conductance. Cholinergic inhibition was most robust in prefrontal layer 5 neurons.
- pmid
- 17122323
- title
- Heterogeneity of phasic cholinergic signaling in neocortical neurons.
- contact Name
- Stuart, GJ
- contributed by
- SR
- checked by
- SR
not implemented - Gordon M. G. Shepherd - Hierarchical connectivity and connection-specific dynamics in the corticospinal-corticostriatal microcircuit in mouse motor cortex.
- input/validation/consistent
- not implemented
- evaluation criterion
- Corticostriatal projection are currently not implemented
- id
- 13
- species
- mouse
- age
- P22-P28
- brain region
- Motor cortex, M1
- layer
- 5
- cell
- PC
- aspect
- Connectivity between layer 5 PCs
- key result(s)
- Both corticospinal and callosally projecting corticostriatal neurons in layer 5B formed within-class (recurrent) connections, with higher connection probability among corticostriatal than among corticospinal neurons. In contrast, across-class connectivity was extraordinarily asymmetric, essentially unidirectional from corticostriatal to corticospinal. Corticostriatal neurons in layer 5A and corticocortical neurons (callosal projection neurons similar to corticostriatal neurons) similarly received a paucity of corticospinal input. Connections involving presynaptic corti- costriatal neurons had greater synaptic depression, and those involving postsynaptic corticospinal neurons had faster decaying EPSPs.
- pmid
- 22492054
- title
- Hierarchical connectivity and connection-specific dynamics in the corticospinal-corticostriatal microcircuit in mouse motor cortex.
- contact Name
- Gordon M. G. Shepherd
- contributed by
- J. Ryge
- checked by
- SR
not implemented - Solange P. Brown1 & Shaul Hestrin1 - Intracortical circuits of pyramidal neurons reflect their long-range axonal targets
- input/validation/consistent
- not implemented
- evaluation criterion
- Longe range axons are currently not included in the model
- id
- 14
- species
- mouse
- age
- p14-p17
- brain region
- layer
- 5
- cell
- pc
- aspect
- connectivity between L5 pyramidal neurons
- key result(s)
- the probability of feed-forward connections from corticocortical neurons to corticotectal neurons is approximately three- to four- fold higher than the probability of monosynaptic connections among corticocortical or corticotectal cells.
- pmid
- 19151698
- title
- Intracortical circuits of pyramidal neurons reflect their long-range axonal targets
- contact Name
- Solange P. Brown1 & Shaul Hestrin1
- contributed by
- Yihwa Kim
- checked by
- SR
not implemented - Masayuki Kobayashi - Postsynaptic Cell Type-Dependent Cholinergic Regulation of GABAergic Synaptic Transmission in Rat Insular Cortex
- input/validation/consistent
- not implemented
- evaluation criterion
- Cholinergic innervation is currently not implemented
- id
- 15
- species
- rat
- age
- p16-44
- brain region
- Rat Insular Cortex
- layer
- 5
- cell
- GABAergic interneurons and pyramidal cells
- aspect
- modulation patterns in response to neurotransmitters
- key result(s)
- presynaptic interneurons identify their targeted postsynaptic neurons and express presynaptic molecules specific to postsynaptic cell subtypes.
- pmid
- 20685921
- title
- Postsynaptic Cell Type-Dependent Cholinergic Regulation of GABAergic Synaptic Transmission in Rat Insular Cortex
- contact Name
- Masayuki Kobayashi
- contributed by
- John Fielden
- checked by
- SR
not implemented - Neil R. Hardingham - Presynaptic efficacy directs normalization of synaptic strength in layer 2/3 rat neocortex after paired activity.
- input/validation/consistent
- not implemented
- evaluation criterion
- STDP is currently not implemented
- id
- 16
- species
- rat
- age
- young adult
- brain region
- layer
- 2,3
- cell
- PC
- aspect
- synaptic plasticity
- key result(s)
- paired activity produces equal proportions of cells showing LTP and LTD. connections that exhibit LTP are of smaller mean amplitude than connections that show LTD. plasticity is mostly presynaptic and those connections that potentiate are weaker presynaptically than those that depress. Pairing thus acts to normalize the synapses' presynaptic strength
- pmid
- 17267749
- title
- Presynaptic efficacy directs normalization of synaptic strength in layer 2/3 rat neocortex after paired activity.
- contact Name
- Neil R. Hardingham
- contributed by
- Kay
- checked by
- SR
not implemented - Gulledge, A - Selective serotonergic excitation of callosal projection neurons.
- input/validation/consistent
- not implemented
- evaluation criterion
- Cholinergic innervation is currently not implemented
- id
- 17
- species
- mouse
- age
- adult
- brain region
- pfC
- layer
- 5
- cell
- PC
- aspect
- Neuromodulation
- key result(s)
- The serotonergic responsiveness of layer 5 pyramidal neurons (L5PNs) was tested in the mouse medial prefrontal cortex (mPFC), and three distinct response types were found: long-lasting 5-HT1A (1A) receptor-dependent inhibitory responses (84% of L5PNs), 5-HT2A (2A) receptor-dependent excitatory responses (9%), and biphasic responses in which 2A-dependent excitation followed brief inhibition (5%)
- pmid
- 22454619
- title
- Selective serotonergic excitation of callosal projection neurons.
- contact Name
- Gulledge, A
- contributed by
- SR
- checked by
- SR
not implemented - Daniel E Shulz - Spike timing-dependent synaptic depression in the in vivo barrel cortex of the rat.
- input/validation/consistent
- not implemented
- evaluation criterion
- STDP is currently not implemented
- id
- 18
- species
- rat
- age
- adult
- brain region
- somatosensory
- layer
- L2/3 L5
- cell
- pc
- aspect
- in vivo stdp
- key result(s)
- These results demonstrate that spike timing-dependent synaptic depression occurs in S1 in vivo, and is therefore a plausible plasticity mechanism in the sensory cortex
- pmid
- 17287502
- title
- Spike timing-dependent synaptic depression in the in vivo barrel cortex of the rat.
- contact Name
- Daniel E Shulz
- contributed by
- J-P
- checked by
- SR
possibly consistent - Connors, BW - Abrupt maturation of a spike-synchronizing mechanism in neocortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - spike synchrony of low threshold spiking neurons
- id
- 19
- species
- rat
- age
- p14-p17
- brain region
- S1
- layer
- L4
- cell
- pc
- aspect
- spike synchrony
- key result(s)
- The developmental transformation of LTS interneurons into a synchronous, oscillatory network overlaps with the onset of active somatosensory exploration, suggesting a potential role for this synchronizing system in sensory processing.
- pmid
- 16093380
- title
- Abrupt maturation of a spike-synchronizing mechanism in neocortex.
- contact Name
- Connors, BW
- contributed by
- SR
- checked by
- SR
possibly consistent - Alison L. Barth - An embedded subnetwork of highly active neurons in the neocortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 20
- species
- mouse
- age
- P13-15
- brain region
- Primary somatosensory cortex
- layer
- 2/3
- cell
- PC
- aspect
- functional connectivity
- key result(s)
- Functionally related PC have higher connectivity probabalility: Recently active cells (fosGFP+) neurons have a greater likelihood of being connected to each other. Recentluy active layer 2/3 PC cells also increase firing rate compared to non-active cells.
- pmid
- 21172607
- title
- An embedded subnetwork of highly active neurons in the neocortex.
- contact Name
- Alison L. Barth
- contributed by
- J. Ryge
- checked by
- SR
possibly consistent - Luhmann, HJ - Carbachol-induced network oscillations in the intact cerebral cortex of the newborn rat.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 21
- species
- rat
- age
- p0-p7
- brain region
- S1
- layer
- cell
- Int & PC
- aspect
- network oscillations
- key result(s)
- Whole-cell recordings from morphologically identified pyramidal neurons in the intact cortex revealed a close temporal correlation between CCh-induced membrane oscillations and local field potential recordings
- pmid
- 12631570
- title
- Carbachol-induced network oscillations in the intact cerebral cortex of the newborn rat.
- contact Name
- Luhmann, HJ
- contributed by
- SR
- checked by
- SR
possibly consistent - Medini, P. - Cell-type-specific sub- and suprathreshold receptive fields of layer 4 and layer 2/3 pyramids in rat primary visual cortex
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - spont AP firing rates
- id
- 22
- species
- rat
- age
- adult
- brain region
- primary visual cortex
- layer
- 2,3
- cell
- pc
- aspect
- Connectivity of cortical pyramidal neurons
- key result(s)
- L4Ps may receive mostly thalamic inputs, whereas L2/3Ps may receive both thalamic and cortical inputs from layer 4
- pmid
- 21704132
- title
- Cell-type-specific sub- and suprathreshold receptive fields of layer 4 and layer 2/3 pyramids in rat primary visual cortex
- contact Name
- Medini, P.
- contributed by
- John Fielden
- checked by
- SR
possibly consistent - Korngreen, G - Cellular and network contributions to excitability of layer 5 neocortical pyramidal neurons in the rat.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 23
- species
- rat
- age
- p13-p15
- brain region
- S1
- layer
- 5
- cell
- PC
- aspect
- Network excitability
- key result(s)
- Modulation of slice excitation level by modifying the ionic composition of the bath solution modifies both cellular and network excitability of L5 pyramidal neurons
- pmid
- 18030343
- title
- Cellular and network contributions to excitability of layer 5 neocortical pyramidal neurons in the rat.
- contact Name
- Korngreen, G
- contributed by
- SR
- checked by
- SR
possibly consistent - J. Julius Zhu - Chandelier cells control excessive cortical excitation: characteristics of whisker-evoked synaptic responses of layer 2/3 nonpyramidal and pyramidal neurons.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 24
- species
- rat
- age
- adult
- brain region
- somatosensory cortex
- layer
- 2,3
- cell
- IN
- aspect
- connectivity of interneurons
- key result(s)
- Chandelier cells instead of processing sensory information, might prevent excessive excitatory activity in cortex
- pmid
- 15175379
- title
- Chandelier cells control excessive cortical excitation: characteristics of whisker-evoked synaptic responses of layer 2/3 nonpyramidal and pyramidal neurons.
- contact Name
- J. Julius Zhu
- contributed by
- Yihwa Kim
- checked by
- SR
possibly consistent - Pinto, D - Circuit dynamics and coding strategies in rodent somatosensory cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 25
- species
- rat
- age
- adult
- brain region
- S1
- layer
- 4
- cell
- PCs
- aspect
- Thalamocortical responses
- key result(s)
- The mechanism by which the cortex processes an afferent signal is inextricably linked with, and in fact determines, the saliency of neural codes embedded in the thalamic response
- pmid
- 10712446
- title
- Circuit dynamics and coding strategies in rodent somatosensory cortex.
- contact Name
- Pinto, D
- contributed by
- SR
- checked by
- SR
possibly consistent - Diego Contreras - Columnar interactions determine horizontal propagation of recurrent network activity in neocortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 26
- species
- rat
- age
- p14 - p23
- brain region
- S1
- layer
- 2/3, 4 and 5
- cell
- all
- aspect
- up states and horizontal propagation of columnar activity
- key result(s)
- L5 amplifies activity in local L2/3 networks and distributes it over many columns within primary sensory cortex.
- pmid
- 22514308
- title
- Columnar interactions determine horizontal propagation of recurrent network activity in neocortex.
- contact Name
- Diego Contreras
- contributed by
- SR
- checked by
- SR
possibly consistent - Pinto, D - Cortical damping: analysis of thalamocortical response transformations in rodent barrel cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 27
- species
- rat
- age
- adult
- brain region
- S1
- layer
- 4
- cell
- PCs
- aspect
- Thalamocortical responses
- key result(s)
- Strong inhibition renders the net effect of intracortical connections suppressive or damping, distinguishing it from previous amplifying models of cortical microcircuits
- pmid
- 12466213
- title
- Cortical damping: analysis of thalamocortical response transformations in rodent barrel cortex.
- contact Name
- Pinto, D
- contributed by
- SR
- checked by
- SR
possibly consistent - Stefano Panzeri - Decoding neuronal population activity in rat somatosensory cortex: role of columnar organization.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 28
- species
- rat
- age
- adult
- brain region
- barrel cortex
- layer
- all
- cell
- EC
- aspect
- in vivo stimulus decoding by column
- key result(s)
- these findings suggest that columnar organization of barrel cortex serves to facilitate decoding of the location of the stimulated whisker
- pmid
- 12466214
- title
- Decoding neuronal population activity in rat somatosensory cortex: role of columnar organization.
- contact Name
- Stefano Panzeri
- contributed by
- MPG
- checked by
- SR
possibly consistent - Ikezoe, K. - Decorrelation of sensory-evoked neuronal responses in rat barrel cortex during postnatal development
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 29
- species
- rat
- age
- p5-30
- brain region
- barrel cortex
- layer
- 2,3
- cell
- PMBSF neurons
- aspect
- ability to detect and discriminate sensory stimuli
- key result(s)
- reduced noise correlation across a population of neurons sharpens the temporal characteristics of single neuron responses and may help improve behavioral performance.
- pmid
- 22677628
- title
- Decorrelation of sensory-evoked neuronal responses in rat barrel cortex during postnatal development
- contact Name
- Ikezoe, K.
- contributed by
- John Fielden
- checked by
- SR
possibly consistent - Alex Kwan - Dissection of cortical microcircuits by single-neuron stimulation in vivo.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - spike transmission during single neuron stimulation
- id
- 30
- species
- mouse
- age
- adult
- brain region
- visual cortex
- layer
- cell
- PC, PV, SOM
- aspect
- impact of single cell activity in vivo
- key result(s)
- results demonstrate the feasibility of mapping functional connectivity at cellular resolution in vivo and reveal distinct operations of two major inhibitory circuits, one detecting single-neuron spike bursts and the other reflecting distributed network activity
- pmid
- 22748320
- title
- Dissection of cortical microcircuits by single-neuron stimulation in vivo.
- contact Name
- Alex Kwan
- contributed by
- Rodrigo Perin
- checked by
- SR
possibly consistent - Thomas Klausberger, - Distinct firing patterns of identified basket and dendrite-targeting interneurons in the prefrontal cortex during hippocampal theta and local spindle oscillations.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 31
- species
- rat
- age
- adult
- brain region
- Prefrontal Cortex
- layer
- 2
- cell
- interneurons
- aspect
- interneuron activity
- key result(s)
- recording of interneurons during network oscillations. Distinct classes of GABAergic interneuron in the prefrontal cortex contribute differentially to the synchronization of pyramidal cells during network oscillations
- pmid
- 19641119
- title
- Distinct firing patterns of identified basket and dendrite-targeting interneurons in the prefrontal cortex during hippocampal theta and local spindle oscillations.
- contact Name
- Thomas Klausberger,
- contributed by
- Rodrigo Perin
- checked by
- SR
possibly consistent - Paullus, J.R. - Diverse excitatory and inhibitory synaptic plasticity outcomes in complex horizontal circuits near a functional border of adult neocortex
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - E/I balance
- id
- 32
- species
- rat
- age
- adult
- brain region
- somatosensory cortex
- layer
- 4
- cell
- aspect
- synaptic plasticity
- key result(s)
- coordinated excitatory and inhibitory synaptic plasticity of horizontal connections are capable of contributing to functional reorganization
- pmid
- 21890112
- title
- Diverse excitatory and inhibitory synaptic plasticity outcomes in complex horizontal circuits near a functional border of adult neocortex
- contact Name
- Paullus, J.R.
- contributed by
- John Fielden
- checked by
- SR
possibly consistent - Yuri Zilberter - Energy substrate availability as a determinant of neuronal resting potential, GABA signaling and spontaneous network activity in the neonatal cortex in vitro.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 33
- species
- Mouse
- age
- P2-P8
- brain region
- cortex
- layer
- cell
- PC
- aspect
- electrical properties, synaptic transmission and metabolism
- key result(s)
- In slices, availability of energy substrates determines whether GABA signaling displays an inhibitory or excitatory mode and affect membrane reversal potantial (Em). Energy deficits induce unfavorable changes in Em and EGABA, leading to neuronal hyperactivity that may initiate a cascade of patho- logical events
- pmid
- 19943846
- title
- Energy substrate availability as a determinant of neuronal resting potential, GABA signaling and spontaneous network activity in the neonatal cortex in vitro.
- contact Name
- Yuri Zilberter
- contributed by
- J. Ryge
- checked by
- SR
possibly consistent - Scanziani, M - Gain control by layer six in cortical circuits of vision.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 34
- species
- mouse
- age
- adult
- brain region
- V1
- layer
- 6
- cell
- PC
- aspect
- gain modulation
- key result(s)
- This study establishes layer six as a major mediator of cortical gain modulation and suggests that it could be a node through which convergent inputs from several brain areas can regulate the earliest steps of cortical visual processing
- pmid
- 22367547
- title
- Gain control by layer six in cortical circuits of vision.
- contact Name
- Scanziani, M
- contributed by
- SR
- checked by
- SR
possibly consistent - Gordon M G Shepherd1,2,4, Armen Stepanyants2-4, Ingrid Bureau1,2, Dmitri Chklovskii2 & Karel Svoboda1,2 - Geometric and functional organization of cortical circuits.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 35
- species
- rat
- age
- brain region
- barrel cortex
- layer
- cell
- PC
- aspect
- structural and functional connectivity
- key result(s)
- Within most individual projections, functional inputs were predicted by geometry and a single scale factor, the synaptic strength per potential synapse. This factor, however, varied between projections and, in one case, even within a projection, up to 20-fold. Relationships between geometric overlap and synaptic strength thus depend on the laminar and columnar locations of both the pre- and postsynaptic neurons, even for neurons of the same type.
- pmid
- 15880111
- title
- Geometric and functional organization of cortical circuits.
- contact Name
- Gordon M G Shepherd1,2,4, Armen Stepanyants2-4, Ingrid Bureau1,2, Dmitri Chklovskii2 & Karel Svoboda1,2
- contributed by
- Yihwa Kim
- checked by
- SR
possibly consistent - Keneth D Harris - Laminar structure of spontaneous and sensory-evoked population activity in auditory cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - propagation speeds of upstates and evoked responses
- id
- 36
- species
- rat
- age
- adult
- brain region
- Auditory cortex
- layer
- 2 to 6
- cell
- pc
- aspect
- Laminar structure of spontaneous and sensory-evoked population activity in auditory cortex
- key result(s)
- The similarity of sparseness patterns for both neural events and distinct spread of activity may reflect similarity of local processing and differences in the flow of information through cortical circuits, respectively.
- pmid
- 19914188
- title
- Laminar structure of spontaneous and sensory-evoked population activity in auditory cortex.
- contact Name
- Keneth D Harris
- contributed by
- J-P
- checked by
- SR
possibly consistent - C. P. J. de Kock - Layer- and cell-type-specific suprathreshold stimulus representation in rat primary somatosensory cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 37
- species
- rat
- age
- p25 - p30
- brain region
- barrel cortex
- layer
- L2/3,4,5 & 6
- cell
- EC
- aspect
- Functional in vivo recordings on responding EC
- key result(s)
- Layer- and cell-type-specific in vivo suprathreshold stimulus representation in rat primary somatosensory cortex
- pmid
- 17317752
- title
- Layer- and cell-type-specific suprathreshold stimulus representation in rat primary somatosensory cortex.
- contact Name
- C. P. J. de Kock
- contributed by
- MPG
- checked by
- SR
possibly consistent - Karim G. Oweiss - Millisecond-timescale local network coding in the rat primary somatosensory cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 38
- species
- rat
- age
- adult
- brain region
- left somatosensory (barrel) cortex
- layer
- L5
- cell
- aspect
- The role of temporal precision in the correlation between neocortical neurons has been hypothesized to enhance information flow along sensory pathways. We examined spike timing correlation between simultaneously recorded layer V neurons within andacross columns of the primary somatosensory cortex of anesthetized rats during unilateral whisker stimulation
- key result(s)
- Network similarity of 83.3±6% within whisker, compared to only 50.3±18% across whiskers. These networks further provided information about whisker identity that was approximately 6 times higher than what was provided by the latency to first spike and 13 times higher than what was provided by the spike count of individual neurons examined separately --> the presence of a temporally precise network coding mechanism that integrates information across neighboring columns
- pmid
- 21738751
- title
- Millisecond-timescale local network coding in the rat primary somatosensory cortex.
- contact Name
- Karim G. Oweiss
- contributed by
- Oli
- checked by
- SR
possibly consistent - Mansvelder, H - Prelimbic and infralimbic prefrontal cortex interact during fast network oscillations
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 39
- species
- rat
- age
- p14-p28
- brain region
- pFC
- layer
- 5
- cell
- PC
- aspect
- fast oscillations
- key result(s)
- Fast network oscillations in rat infralimbic cortex slices occur at higher frequencies and with higher power than oscillations in prelimbic cortex
- pmid
- 18628964
- title
- Prelimbic and infralimbic prefrontal cortex interact during fast network oscillations
- contact Name
- Mansvelder, H
- contributed by
- SR
- checked by
- SR
possibly consistent - Sakmann B - Reconstruction of an average cortical column in silico.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - cell type specific AP output (L23PC, L5STPC, L5TTPC)
- id
- 40
- species
- rat
- age
- -
- brain region
- barrel cortex
- layer
- 1 to 6
- cell
- neurons
- aspect
- Anatomical and functional connectivity and cortical column in silico
- key result(s)
- Synthesis of an average functional column
- pmid
- 17822776
- title
- Reconstruction of an average cortical column in silico.
- contact Name
- Sakmann B
- contributed by
- Rajnish
- checked by
- SR
possibly consistent - Khazipov, R - Retinal waves trigger spindle bursts in the neonatal rat visual cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 41
- species
- rat
- age
- p5-p6
- brain region
- V1
- layer
- 5
- cell
- PC
- aspect
- netwrok spindle bursts
- key result(s)
- Spontaneous retinal waves are transmitted to the visual cortex and trigger endogenous spindle bursts
- pmid
- 16793880
- title
- Retinal waves trigger spindle bursts in the neonatal rat visual cortex.
- contact Name
- Khazipov, R
- contributed by
- SR
- checked by
- SR
possibly consistent - Jason Kerr - Spatial organization of neuronal population responses in layer 2/3 of rat barrel cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 42
- species
- rat
- age
- p25-35
- brain region
- S1
- layer
- 2,3
- cell
- all
- aspect
- in vivo responses
- key result(s)
- Neuronal Responses to sensory (thalamic) input
- pmid
- 18045926
- title
- Spatial organization of neuronal population responses in layer 2/3 of rat barrel cortex.
- contact Name
- Jason Kerr
- contributed by
- Rodrigo Perin
- checked by
- SR
possibly consistent - Contreras, D - Stimulus-dependent changes in spike threshold enhance feature selectivity in rat barrel cortex neurons.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 43
- species
- rat
- age
- adult
- brain region
- S1
- layer
- 2 to 6
- cell
- PCs
- aspect
- Spike Threshold
- key result(s)
- The spike output and the underlying synaptic response decreased exponentially in magnitude as the direction of deflection diverged from the preferred direction.
- pmid
- 15772358
- title
- Stimulus-dependent changes in spike threshold enhance feature selectivity in rat barrel cortex neurons.
- contact Name
- Contreras, D
- contributed by
- SR
- checked by
- SR
possibly consistent - Stepanyants A - The fractions of short- and long-range connections in the visual cortex
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - Change in the inhibition-excitation balance in cortical tissue sections of different thicknesses. Change is calculated as the ratio between the fractions of intact i&rarr e and e&rarr e synapse
- id
- 44
- species
- cat
- age
- adult
- brain region
- area 17
- layer
- cell
- PC
- aspect
- cortico-cortical projections
- key result(s)
- extrinsic connections to cortex >70% of excitation comes from outside a 500 µm radius column around a cell
- pmid
- 19221032
- title
- The fractions of short- and long-range connections in the visual cortex
- contact Name
- Stepanyants A
- contributed by
- MR
- checked by
- SR
possibly consistent - Steven J. Schiff - The role of inhibition in oscillatory wave dynamics in the cortex.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation - effect of synaptic blockers on network dynamics
- id
- 45
- species
- rat
- age
- na
- brain region
- occipital neocortex
- layer
- iii-v
- cell
- aspect
- inhibition in oscillatory wave dynamics
- key result(s)
- GABAergic inhibition increases the complexity of patterns of activity and contributes to the regulation of the cortex
- pmid
- 22805065
- title
- The role of inhibition in oscillatory wave dynamics in the cortex.
- contact Name
- Steven J. Schiff
- contributed by
- Dimitri Christodoulou
- checked by
- SR
possibly consistent - Luhmann, HJ - Three patterns of oscillatory activity differentially synchronize developing neocortical networks in vivo.
- input/validation/consistent
- possibly consistent
- evaluation criterion
- pending evaluation
- id
- 46
- species
- rat
- age
- p0-p7
- brain region
- S1
- layer
- cell
- Int & PC
- aspect
- network oscillations
- key result(s)
- Spindle bursts and gamma oscillations may represent an early functional columnar-like pattern, long oscillations may serve as a propagating activation signal consolidating these immature neuronal networks
- pmid
- 19605639
- title
- Three patterns of oscillatory activity differentially synchronize developing neocortical networks in vivo.
- contact Name
- Luhmann, HJ
- contributed by
- SR
- checked by
- SR