Habituation as a neural algorithm for online odor discrimination.
Proc Natl Acad Sci U S A
; 117(22): 12402-12410, 2020 06 02.
Article
em En
| MEDLINE
| ID: mdl-32430320
ABSTRACT
Habituation is a form of simple memory that suppresses neural activity in response to repeated, neutral stimuli. This process is critical in helping organisms guide attention toward the most salient and novel features in the environment. Here, we follow known circuit mechanisms in the fruit fly olfactory system to derive a simple algorithm for habituation. We show, both empirically and analytically, that this algorithm is able to filter out redundant information, enhance discrimination between odors that share a similar background, and improve detection of novel components in odor mixtures. Overall, we propose an algorithmic perspective on the biological mechanism of habituation and use this perspective to understand how sensory physiology can affect odor perception. Our framework may also help toward understanding the effects of habituation in other more sophisticated neural systems.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Drosophila
/
Odorantes
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article