Spontaneous eye movements reflect the representational geometries of conceptual spaces.
Proc Natl Acad Sci U S A
; 121(17): e2403858121, 2024 Apr 23.
Article
en En
| MEDLINE
| ID: mdl-38635638
ABSTRACT
Functional neuroimaging studies indicate that the human brain can represent concepts and their relational structure in memory using coding schemes typical of spatial navigation. However, whether we can read out the internal representational geometries of conceptual spaces solely from human behavior remains unclear. Here, we report that the relational structure between concepts in memory might be reflected in spontaneous eye movements during verbal fluency tasks When we asked participants to randomly generate numbers, their eye movements correlated with distances along the left-to-right one-dimensional geometry of the number space (mental number line), while they scaled with distance along the ring-like two-dimensional geometry of the color space (color wheel) when they randomly generated color names. Moreover, when participants randomly produced animal names, eye movements correlated with low-dimensional similarity in word frequencies. These results suggest that the representational geometries used to internally organize conceptual spaces might be read out from gaze behavior.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Movimientos Oculares
/
Navegación Espacial
Límite:
Humans
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Año:
2024
Tipo del documento:
Article
País de afiliación:
Alemania