@article{ Johnson_Alloway93,
  author = {Johnson, J. J. and Alloway, K. D.},
  title = {Sensory modulation of synchronous thalamocortical interactions in
	the somatosensory system of the cat},
  journal = {Experimental Brain Research},
  year = {1993},
  volume = {102},
  pages = {181-97},
  number = {2},
  abstract = {Department of Neuroscience and Anatomy, Milton S. Hershey Medical
	Center, Pennsylvania State University, Hershey 17033. Neuronal responses
	to hairy skin stimulation were simultaneously recorded in the ventral
	posterolateral nucleus (VPL) of the thalamus and primary somatosensory
	cortex (SI) of halothane-anesthetized cats. Among 233 thalamocortical
	neuron pairs, cross-correlation analysis revealed significant interactions
	in 120 pairs. Excitatory interactions were most prevalent and included
	influences occurring exclusively in the thalamocortical (41 pairs)
	or corticothalamic (23 pairs) directions as well as multiphasic interactions
	(40 pairs) in both directions. Only 16 pairs exhibited inhibitory
	interactions and 7 of these involved multiphasic combinations of
	excitation and inhibition. In 14 of these neuron pairs, inhibition
	was exerted in the corticothalamic direction. Receptive field (RF)
	overlap between thalamic and cortical neurons varied considerably,
	and neuronal interactions were more likely for neuron pairs sharing
	large portions of their combined RFs. Computer-controlled stimulation
	was delivered to multiple RF sites but only 46% of the neuron pairs
	displayed interactions at more than one stimulation site and only
	four neuron pairs showed interactions at all stimulus positions.
	When interactions occurred at multiple stimulus sites, 40% of these
	interactions were characterized by timing shifts where the time interval
	between VPL and SI discharges varied as much as 20 ms because of
	stimulus relocation. In nine neuron pairs, systematic shifts in stimulus
	position produced reversals in the temporal sequence of thalamic
	and cortical neuronal discharges. Functional interactions between
	thalamic and cortical neurons were detected during both spontaneous
	and stimulus-induced activity. Matched-sample comparisons of connection
	strength and half-widths of thalamocortical peaks during spontaneous
	and stimulus-induced activity indicated that functional interactions
	produced by cutaneous stimulation were significantly stronger and
	had less temporal variability than those occurring spontaneously.}
}

{"_id":"noYiPtitAvmZ2QeQ2","bibbaseid":"johnson-alloway-sensorymodulationofsynchronousthalamocorticalinteractionsinthesomatosensorysystemofthecat-1993","downloads":0,"creationDate":"2015-02-08T05:14:47.349Z","title":"Sensory modulation of synchronous thalamocortical interactions in the somatosensory system of the cat","author_short":["Johnson, J.<nbsp>J.","Alloway, K.<nbsp>D."],"year":1993,"bibtype":"article","biburl":"http://cnslab.mb.jhu.edu/niebase.bib","bibdata":{"abstract":"Department of Neuroscience and Anatomy, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey 17033. Neuronal responses to hairy skin stimulation were simultaneously recorded in the ventral posterolateral nucleus (VPL) of the thalamus and primary somatosensory cortex (SI) of halothane-anesthetized cats. Among 233 thalamocortical neuron pairs, cross-correlation analysis revealed significant interactions in 120 pairs. Excitatory interactions were most prevalent and included influences occurring exclusively in the thalamocortical (41 pairs) or corticothalamic (23 pairs) directions as well as multiphasic interactions (40 pairs) in both directions. Only 16 pairs exhibited inhibitory interactions and 7 of these involved multiphasic combinations of excitation and inhibition. In 14 of these neuron pairs, inhibition was exerted in the corticothalamic direction. Receptive field (RF) overlap between thalamic and cortical neurons varied considerably, and neuronal interactions were more likely for neuron pairs sharing large portions of their combined RFs. Computer-controlled stimulation was delivered to multiple RF sites but only 46% of the neuron pairs displayed interactions at more than one stimulation site and only four neuron pairs showed interactions at all stimulus positions. When interactions occurred at multiple stimulus sites, 40% of these interactions were characterized by timing shifts where the time interval between VPL and SI discharges varied as much as 20 ms because of stimulus relocation. In nine neuron pairs, systematic shifts in stimulus position produced reversals in the temporal sequence of thalamic and cortical neuronal discharges. Functional interactions between thalamic and cortical neurons were detected during both spontaneous and stimulus-induced activity. Matched-sample comparisons of connection strength and half-widths of thalamocortical peaks during spontaneous and stimulus-induced activity indicated that functional interactions produced by cutaneous stimulation were significantly stronger and had less temporal variability than those occurring spontaneously.","author":["Johnson, J. J.","Alloway, K. D."],"author_short":["Johnson, J.<nbsp>J.","Alloway, K.<nbsp>D."],"bibtex":"@article{ Johnson_Alloway93,\n author = {Johnson, J. J. and Alloway, K. D.},\n title = {Sensory modulation of synchronous thalamocortical interactions in\n\tthe somatosensory system of the cat},\n journal = {Experimental Brain Research},\n year = {1993},\n volume = {102},\n pages = {181-97},\n number = {2},\n abstract = {Department of Neuroscience and Anatomy, Milton S. Hershey Medical\n\tCenter, Pennsylvania State University, Hershey 17033. Neuronal responses\n\tto hairy skin stimulation were simultaneously recorded in the ventral\n\tposterolateral nucleus (VPL) of the thalamus and primary somatosensory\n\tcortex (SI) of halothane-anesthetized cats. Among 233 thalamocortical\n\tneuron pairs, cross-correlation analysis revealed significant interactions\n\tin 120 pairs. Excitatory interactions were most prevalent and included\n\tinfluences occurring exclusively in the thalamocortical (41 pairs)\n\tor corticothalamic (23 pairs) directions as well as multiphasic interactions\n\t(40 pairs) in both directions. Only 16 pairs exhibited inhibitory\n\tinteractions and 7 of these involved multiphasic combinations of\n\texcitation and inhibition. In 14 of these neuron pairs, inhibition\n\twas exerted in the corticothalamic direction. Receptive field (RF)\n\toverlap between thalamic and cortical neurons varied considerably,\n\tand neuronal interactions were more likely for neuron pairs sharing\n\tlarge portions of their combined RFs. Computer-controlled stimulation\n\twas delivered to multiple RF sites but only 46% of the neuron pairs\n\tdisplayed interactions at more than one stimulation site and only\n\tfour neuron pairs showed interactions at all stimulus positions.\n\tWhen interactions occurred at multiple stimulus sites, 40% of these\n\tinteractions were characterized by timing shifts where the time interval\n\tbetween VPL and SI discharges varied as much as 20 ms because of\n\tstimulus relocation. In nine neuron pairs, systematic shifts in stimulus\n\tposition produced reversals in the temporal sequence of thalamic\n\tand cortical neuronal discharges. Functional interactions between\n\tthalamic and cortical neurons were detected during both spontaneous\n\tand stimulus-induced activity. Matched-sample comparisons of connection\n\tstrength and half-widths of thalamocortical peaks during spontaneous\n\tand stimulus-induced activity indicated that functional interactions\n\tproduced by cutaneous stimulation were significantly stronger and\n\thad less temporal variability than those occurring spontaneously.}\n}","bibtype":"article","id":"Johnson_Alloway93","journal":"Experimental Brain Research","key":"Johnson_Alloway93","number":"2","pages":"181-97","title":"Sensory modulation of synchronous thalamocortical interactions in the somatosensory system of the cat","type":"article","volume":"102","year":"1993","bibbaseid":"johnson-alloway-sensorymodulationofsynchronousthalamocorticalinteractionsinthesomatosensorysystemofthecat-1993","role":"author","urls":{},"downloads":0},"search_terms":["sensory","modulation","synchronous","thalamocortical","interactions","somatosensory","system","cat","johnson","alloway"],"keywords":[],"authorIDs":[],"dataSources":["ErLXoH8mqSjESnrN5"]}