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1
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0029984154
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Quantitative long-term imaging of the functional representation of a whisker in the rat barrel cortex
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Masino S.A., Frostig R.D. Quantitative long-term imaging of the functional representation of a whisker in the rat barrel cortex. Proc Natl Acad Sci USA. 93:1996;4942-4947.
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(1996)
Proc Natl Acad Sci USA
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Masino, S.A.1
Frostig, R.D.2
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2
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0031893278
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Temporal modulation of spatial borders in rat barrel cortex
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Bhavin R., Moore C.I., Sur M. Temporal modulation of spatial borders in rat barrel cortex. J Neurophysiol. 79:1998;464-470.
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(1998)
J Neurophysiol
, vol.79
, pp. 464-470
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Bhavin, R.1
Moore, C.I.2
Sur, M.3
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3
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0023227926
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Spatiotemporal convergence and divergence in rat SI 'barrel' cortex
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Armstrong-James M., Fox K. Spatiotemporal convergence and divergence in rat SI 'barrel' cortex. J Comp Neurol. 263:1987;265-281.
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(1987)
J Comp Neurol
, vol.263
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Armstrong-James, M.1
Fox, K.2
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4
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0033230206
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Two directions of plasticity in the sensory-deprived adult cortex
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Optical imaging of instrinsic signals is used to measure the area of barrel cortex activated by stimulating a single whisker. This area increases for the spared whisker if all others are removed, but contracts if the animal is exposed to a novel environment for a few minutes per session. Both contraction and expansion are reversed by whisker regrowth.
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Polley D.B., Chen-Bee C.H., Frostig R.D. Two directions of plasticity in the sensory-deprived adult cortex. Neuron. 24:1999;623-637. Optical imaging of instrinsic signals is used to measure the area of barrel cortex activated by stimulating a single whisker. This area increases for the spared whisker if all others are removed, but contracts if the animal is exposed to a novel environment for a few minutes per session. Both contraction and expansion are reversed by whisker regrowth.
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(1999)
Neuron
, vol.24
, pp. 623-637
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Polley, D.B.1
Chen-Bee, C.H.2
Frostig, R.D.3
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5
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0030002907
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The time course of experience-dependent synaptic potentiation and depression in barrel cortex of adolescent rats
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Glazewski S., Fox K. The time course of experience-dependent synaptic potentiation and depression in barrel cortex of adolescent rats. J Neurophysiol. 75:1996;1714-1729.
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(1996)
J Neurophysiol
, vol.75
, pp. 1714-1729
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Glazewski, S.1
Fox, K.2
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6
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0023740471
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Single vibrissal cortical column in SI cortex of rats and its alterations in neonatal and adult vibrissa-deafferented animals: A quantitative 2DG study
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Kossut M., Hand P.J., Greenberg J., Hand C.L. Single vibrissal cortical column in SI cortex of rats and its alterations in neonatal and adult vibrissa-deafferented animals: a quantitative 2DG study. J Neurosci. 60:1988;829-851.
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(1988)
J Neurosci
, vol.60
, pp. 829-851
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Kossut, M.1
Hand, P.J.2
Greenberg, J.3
Hand, C.L.4
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7
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0031846766
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Experience-dependent depression of vibrissae responses in rat barrel cortex
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Glazewski S., McKenna M., Jacquin M., Fox K. Experience-dependent depression of vibrissae responses in rat barrel cortex. Eur J Neurosci. 10:1998;2107-2116.
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(1998)
Eur J Neurosci
, vol.10
, pp. 2107-2116
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Glazewski, S.1
McKenna, M.2
Jacquin, M.3
Fox, K.4
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8
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0020696539
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Topographic reorganization of somatosensory cortical areas 3b and 1 in adult monkeys following restricted deafferentation
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Merzenich M.M., Kaas J.H., Wall J., Nelson R.J., Sur M., Felleman D. Topographic reorganization of somatosensory cortical areas 3b and 1 in adult monkeys following restricted deafferentation. Neuroscience. 8:1983;33-55.
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(1983)
Neuroscience
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Merzenich, M.M.1
Kaas, J.H.2
Wall, J.3
Nelson, R.J.4
Sur, M.5
Felleman, D.6
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9
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0027948943
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The cortical component of experience-dependent synaptic plasticity in the barrel cortex
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Fox K. The cortical component of experience-dependent synaptic plasticity in the barrel cortex. J Neurosci. 14:1994;7665-7679.
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(1994)
J Neurosci
, vol.14
, pp. 7665-7679
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Fox, K.1
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10
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0032860212
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Local cortical interactions determine the form of cortical plasticity
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The effects of different patterns of whisker deprivation are compared. Potentiation of responses to stimulation of spared whiskers occurred, and depression of responses to deprived (regrown) whiskers occurred. Potentiation occurs faster in animals with multiple spared whiskers than in animals with a single spared whisker. Depression is greater for deprived whisker responses the more whiskers are spared. Depression and potentiation occur in cortex but not in thalamus, indicating that both are cortical in origin and depend on cortical circuits and synapses.
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Wallace H., Fox K. Local cortical interactions determine the form of cortical plasticity. J Neurobiol. 41:1999;58-63. The effects of different patterns of whisker deprivation are compared. Potentiation of responses to stimulation of spared whiskers occurred, and depression of responses to deprived (regrown) whiskers occurred. Potentiation occurs faster in animals with multiple spared whiskers than in animals with a single spared whisker. Depression is greater for deprived whisker responses the more whiskers are spared. Depression and potentiation occur in cortex but not in thalamus, indicating that both are cortical in origin and depend on cortical circuits and synapses.
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(1999)
J Neurobiol
, vol.41
, pp. 58-63
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Wallace, H.1
Fox, K.2
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11
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0032815204
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The effect of chessboard deprivation pattern on potentiation and depression of vibrissae responses in rat barrel cortex
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The effect of a new pattern of sensory deprivation, where every other whisker is removed in a chessboard pattern, is described. Each deprived cortical column is surrounded by a spared column and vice versa. Potentiation and depression of whisker responses are shown to occur in the cortex but not the thalamus.
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Wallace H., Fox K. The effect of chessboard deprivation pattern on potentiation and depression of vibrissae responses in rat barrel cortex. Somatosens Mot Res. 16:1999;122-138. The effect of a new pattern of sensory deprivation, where every other whisker is removed in a chessboard pattern, is described. Each deprived cortical column is surrounded by a spared column and vice versa. Potentiation and depression of whisker responses are shown to occur in the cortex but not the thalamus.
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(1999)
Somatosens Mot Res
, vol.16
, pp. 122-138
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Wallace, H.1
Fox, K.2
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12
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0033529208
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Immediate thalamic sensory plasticity depends on corticothalamic feedback
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Plasticity is induced in the thalamus by injecting local anaesthetic into the whisker pad. The degree of rapid plasticity measured with multi-electrode arrays in the thalamus is decreased if the cortex is inactivated with muscimol. The results imply that thalamic plasticity depends on the cortex.
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Krupa D.J., Ghazanfar A.A., Nicolelis M.A. Immediate thalamic sensory plasticity depends on corticothalamic feedback. Proc Natl Acad Sci USA. 96:1999;8200-8205. Plasticity is induced in the thalamus by injecting local anaesthetic into the whisker pad. The degree of rapid plasticity measured with multi-electrode arrays in the thalamus is decreased if the cortex is inactivated with muscimol. The results imply that thalamic plasticity depends on the cortex.
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(1999)
Proc Natl Acad Sci USA
, vol.96
, pp. 8200-8205
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Krupa, D.J.1
Ghazanfar, A.A.2
Nicolelis, M.A.3
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13
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0033216258
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Cortical involvement in the induction, but not expression, of thalamic plasticity
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In the monkey, plasticity is induced in the thalamus by making a lesion in nucleus gracilis of the dorsal column system. If the somatosensory cortex is ablated before inducing plasticity, plasticity is prevented. However, if the cortex is ablated after plasticity has occurred, plasticity is still expressed in the thalamus.
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Parker J.L., Dostrovsky J.O. Cortical involvement in the induction, but not expression, of thalamic plasticity. J Neurosci. 19:1999;8623-8629. In the monkey, plasticity is induced in the thalamus by making a lesion in nucleus gracilis of the dorsal column system. If the somatosensory cortex is ablated before inducing plasticity, plasticity is prevented. However, if the cortex is ablated after plasticity has occurred, plasticity is still expressed in the thalamus.
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(1999)
J Neurosci
, vol.19
, pp. 8623-8629
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Parker, J.L.1
Dostrovsky, J.O.2
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14
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0033198040
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Evidence for brainstem and supra-brainstem contributions to rapid cortical plasticity in adult monkeys
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Xu J., Wall J.T. Evidence for brainstem and supra-brainstem contributions to rapid cortical plasticity in adult monkeys. J Neurosci. 19:1999;7578-7590.
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(1999)
J Neurosci
, vol.19
, pp. 7578-7590
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Xu, J.1
Wall, J.T.2
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15
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0032107416
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Cortically induced thalamic plasticity in the primate somatosensory system
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Ergenzinger E.R., Glasier M.M., Hahm J.O., Pons T.P. Cortically induced thalamic plasticity in the primate somatosensory system. Nat Neurosci. 1:1998;226-229.
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(1998)
Nat Neurosci
, vol.1
, pp. 226-229
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Ergenzinger, E.R.1
Glasier, M.M.2
Hahm, J.O.3
Pons, T.P.4
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16
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0026642660
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Somatic sensory responses in the rostral sector of the posterior group (POm) and in the ventral posterior medial nucleus (VPM) of the rat thalamus: Dependence on the barrel field cortex
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Diamond M.E., Armstrong-James M., Budway M.J., Ebner F.F. Somatic sensory responses in the rostral sector of the posterior group (POm) and in the ventral posterior medial nucleus (VPM) of the rat thalamus: dependence on the barrel field cortex. J Comp Neurol. 319:1992;66-84.
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(1992)
J Comp Neurol
, vol.319
, pp. 66-84
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Diamond, M.E.1
Armstrong-James, M.2
Budway, M.J.3
Ebner, F.F.4
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17
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0033570368
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Sensory loss by selected whisker removal produces immediate disinhibition in the somatosensory cortex of behaving rats
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An implanted electrode array is used to record from cortex or thalamus during a standard whisking task. The responses of cortical neurones increase in a principal barrel if the whiskers surrounding that barrel's principal whisker are removed. This shows that surround receptive field whiskers produce lateral inhibition in the cortex. Conversely, thalamic responses to the spared principal whisker decrease, suggesting that surround receptive field whiskers provide a net lateral excitation in thalamus.
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Kelly M.K., Carvell G.E., Kodger J.M., Simons D.J. Sensory loss by selected whisker removal produces immediate disinhibition in the somatosensory cortex of behaving rats. J Neurosci. 19:1999;9117-9125. An implanted electrode array is used to record from cortex or thalamus during a standard whisking task. The responses of cortical neurones increase in a principal barrel if the whiskers surrounding that barrel's principal whisker are removed. This shows that surround receptive field whiskers produce lateral inhibition in the cortex. Conversely, thalamic responses to the spared principal whisker decrease, suggesting that surround receptive field whiskers provide a net lateral excitation in thalamus.
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(1999)
J Neurosci
, vol.19
, pp. 9117-9125
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Kelly, M.K.1
Carvell, G.E.2
Kodger, J.M.3
Simons, D.J.4
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18
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0033571851
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Temporal characteristics of response integration evoked by multiple whisker stimulations in the barrel cortex of rats
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Extracellular recordings are used to measure responses of neurones to paired deflections of adjacent whiskers. Facilitatory responses occur in layer II/III cells when deflections are spaced up to 3 ms apart. Facilitation is more common in layers II/III (65% of neurons) than in layers IV or V (15% of neurons).
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Shimegi S., Ichikawa T., Akasaki T., Sato H. Temporal characteristics of response integration evoked by multiple whisker stimulations in the barrel cortex of rats. J Neurosci. 19:1999;10164-10175. Extracellular recordings are used to measure responses of neurones to paired deflections of adjacent whiskers. Facilitatory responses occur in layer II/III cells when deflections are spaced up to 3 ms apart. Facilitation is more common in layers II/III (65% of neurons) than in layers IV or V (15% of neurons).
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(1999)
J Neurosci
, vol.19
, pp. 10164-10175
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Shimegi, S.1
Ichikawa, T.2
Akasaki, T.3
Sato, H.4
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19
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0033490390
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Coincidence detection and changes of synaptic efficacy in spiny stellate neurons in rat barrel cortex
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Dual intracellular recordings are made in interconnected intrabarrel layer IV stellate cells from thalamocortical slices. Pairing spikes in the two cells within a 10 ms time-window leads to depression of responses to presynaptic input.
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Egger V., Feldmeyer D., Sakman B. Coincidence detection and changes of synaptic efficacy in spiny stellate neurons in rat barrel cortex. Nat Neurosci. 12:1999;1098-1105. Dual intracellular recordings are made in interconnected intrabarrel layer IV stellate cells from thalamocortical slices. Pairing spikes in the two cells within a 10 ms time-window leads to depression of responses to presynaptic input.
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(1999)
Nat Neurosci
, vol.12
, pp. 1098-1105
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Egger, V.1
Feldmeyer, D.2
Sakman, B.3
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20
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0033595193
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Sensory experience modifies the short term dynamic of neocortical synapses
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Slices of barrel cortex are taken from animals that have had the A,B,C or D,E row whiskers removed for 10 days. Recordings are made from layer II cells in either the deprived or the spared barrel-columns and responses evoked by electrical stimulation from vertical or horizontal pathways. Steady-state depression to repeated stimuli is greater in horizontal pathways from spared columns to deprived columns than between columns in undeprived cortex. The authors use modelling to show how this indicates that these pathways have been potentiated by deprivation. Similarly, vertical pathways between layer IV and layer II show potentiation in spared columns.
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Finnerty G.T., Langdon S.E., Roberts X., Connors B.W. Sensory experience modifies the short term dynamic of neocortical synapses. Nature. 400:1999;367-371. Slices of barrel cortex are taken from animals that have had the A,B,C or D,E row whiskers removed for 10 days. Recordings are made from layer II cells in either the deprived or the spared barrel-columns and responses evoked by electrical stimulation from vertical or horizontal pathways. Steady-state depression to repeated stimuli is greater in horizontal pathways from spared columns to deprived columns than between columns in undeprived cortex. The authors use modelling to show how this indicates that these pathways have been potentiated by deprivation. Similarly, vertical pathways between layer IV and layer II show potentiation in spared columns.
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(1999)
Nature
, vol.400
, pp. 367-371
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Finnerty, G.T.1
Langdon, S.E.2
Roberts, X.3
Connors, B.W.4
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21
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0343945386
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LTP and LTD induced by action potential-EPSP pairing at vertical inputs to layer II/III pyramids in rat somatosensory cortex
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Feldman D.E. LTP and LTD induced by action potential-EPSP pairing at vertical inputs to layer II/III pyramids in rat somatosensory cortex. Soc Neurosci Abstr. 28:1999;223.
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(1999)
Soc Neurosci Abstr
, vol.28
, pp. 223
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Feldman, D.E.1
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