Decoding naturalistic affective behaviour from spectro-spatial features in multiday human iEEG.
Nat Hum Behav
; 6(6): 823-836, 2022 06.
Article
em En
| MEDLINE
| ID: mdl-35273355
ABSTRACT
The neurological basis of affective behaviours in everyday life is not well understood. We obtained continuous intracranial electroencephalography recordings from the human mesolimbic network in 11 participants with epilepsy and hand-annotated spontaneous behaviours from 116 h of multiday video recordings. In individual participants, binary random forest models decoded affective behaviours from neutral behaviours with up to 93% accuracy. Both positive and negative affective behaviours were associated with increased high-frequency and decreased low-frequency activity across the mesolimbic network. The insula, amygdala, hippocampus and anterior cingulate cortex made stronger contributions to affective behaviours than the orbitofrontal cortex, but the insula and anterior cingulate cortex were most critical for differentiating behaviours with observable affect from those without. In a subset of participants (N = 3), multiclass decoders distinguished amongst the positive, negative and neutral behaviours. These results suggest that spectro-spatial features of brain activity in the mesolimbic network are associated with affective behaviours of everyday life.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Emoções
/
Giro do Cíngulo
Limite:
Humans
Idioma:
En
Revista:
Nat Hum Behav
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos