Abstract：
:Here we addressed a question of whether gamma oscillations previously described in the whisker-related barrel cortex are a universal pattern of activity in the somatosensory cortex of newborn rats. Intracortical recording of local field potentials and action potentials in neurons using multisite silicon electrodes in 2-7-day-old rats showed that mechanical stimulation of single fingers or specific areas on the plantar or back side of the foot evoked early gamma oscillations followed by spindle-burst oscillations in the corresponding regions of the somatosensory cortex. Early gamma oscillations had maximum amplitude in layer IV of the somatosensory cortex and effectively synchronized action potentials in layer IV neurons. It was concluded that early gamma oscillations evoked by activation of the topographic sensory input are a universal activity pattern of the entire somatosensory cortex of newborn rats.
journal_name
Bull Exp Biol Medjournal_title
Bulletin of experimental biology and medicineauthors
Gerasimova EV,Zakharov AV,Lebedeva YA,Inacio AR,Minlebaev MG,Sitdikova GF,Khazipov RNdoi
10.1007/s10517-014-2333-3subject
Has Abstractpub_date
2014-01-01 00:00:00pages
295-8issue
3eissn
0007-4888issn
1573-8221journal_volume
156pub_type
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