Non-stimulated regions in early visual cortex encode the contents of conscious visual perception.
Hum Brain Mapp
; 43(4): 1394-1402, 2022 03.
Article
em En
| MEDLINE
| ID: mdl-34862702
ABSTRACT
Predictions shape our perception. The theory of predictive processing poses that our brains make sense of incoming sensory input by generating predictions, which are sent back from higher to lower levels of the processing hierarchy. These predictions are based on our internal model of the world and enable inferences about the hidden causes of the sensory input data. It has been proposed that conscious perception corresponds to the currently most probable internal model of the world. Accordingly, predictions influencing conscious perception should be fed back from higher to lower levels of the processing hierarchy. Here, we used functional magnetic resonance imaging and multivoxel pattern analysis to show that non-stimulated regions of early visual areas contain information about the conscious perception of an ambiguous visual stimulus. These results indicate that early sensory cortices in the human brain receive predictive feedback signals that reflect the current contents of conscious perception.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reconhecimento Visual de Modelos
/
Córtex Visual
/
Mapeamento Encefálico
/
Estado de Consciência
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Humans
Idioma:
En
Revista:
Hum Brain Mapp
Assunto da revista:
CEREBRO
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Reino Unido