Neuronalis összeköttetések a szomatoszenzoros kérgi área 3b és área 1 kézreprezentációs területén foemlosökben

Translated title of the contribution: Neuronal connections within the hand representation in areas 3b and 1 of the somatosensory cortex in primates

Emese Pálfi, Mária Ashaber, Palmer Cory, Robert M. Friedman, Anna W. Roe, László Négyessy

Research output: Contribution to journalReview article

Abstract

Introduction: The close functional relationship between areas 3b and 1 of the somatosensory cortex is based on their reciprocal connections indicating that tactile sensation depends on the interaction of these two areas. Aim: The aim of the authors was to explore this neuronal circuit at the level of the distal finger pad representation. Method: The study was made by bidirectional tract tracing aided by neurophysiological mapping in squirrel monkeys (Saimiri sciureus). Results: Inter-areal connections between the two areas preferred the homologues representations. However, intra-areal connections were formed between the neighboring finger pad representations supporting the physiological observations. Interestingly, the size of the local input area of the injected cortical micro-region, which differed in the two areas, represented the same skin area. Conclusions: The authors propose that intra-areal connections are important in integrating information across fingers, while inter-areal connections are important in maintaining input localization during hand movement.

Translated title of the contributionNeuronal connections within the hand representation in areas 3b and 1 of the somatosensory cortex in primates
Original languageHungarian
Pages (from-to)1320-1325
Number of pages6
JournalOrvosi hetilap
Volume157
Issue number33
DOIs
StatePublished - Aug 2016

Keywords

  • Electrophysiology
  • Horizontal connections
  • Intrinsic signal optical imaging
  • Touch
  • Tract tracing

ASJC Scopus subject areas

  • Medicine(all)

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