Engaging and disengaging recurrent inhibition coincides with sensing and unsensing of a sensory stimulus.
Nat Commun
; 8: 15413, 2017 05 23.
Article
in En
| MEDLINE
| ID: mdl-28534502
ABSTRACT
Even simple sensory stimuli evoke neural responses that are dynamic and complex. Are the temporally patterned neural activities important for controlling the behavioral output? Here, we investigated this issue. Our results reveal that in the insect antennal lobe, due to circuit interactions, distinct neural ensembles are activated during and immediately following the termination of every odorant. Such non-overlapping response patterns are not observed even when the stimulus intensity or identities were changed. In addition, we find that ON and OFF ensemble neural activities differ in their ability to recruit recurrent inhibition, entrain field-potential oscillations and more importantly in their relevance to behaviour (initiate versus reset conditioned responses). Notably, we find that a strikingly similar strategy is also used for encoding sound onsets and offsets in the marmoset auditory cortex. In sum, our results suggest a general approach where recurrent inhibition is associated with stimulus 'recognition' and 'derecognition'.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Olfactory Pathways
/
Auditory Cortex
/
Smell
/
Action Potentials
/
Neural Inhibition
/
Odorants
Type of study:
Risk_factors_studies
Limits:
Animals
Language:
En
Journal:
Nat Commun
Journal subject:
BIOLOGIA
/
CIENCIA
Year:
2017
Document type:
Article
Affiliation country:
United States