Combined effects of expectations and visual uncertainty upon detection and identification of a target in the fog.
Cogn Process
; 16 Suppl 1: 343-8, 2015 Sep.
Article
en En
| MEDLINE
| ID: mdl-26209302
Detecting a pedestrian while driving in the fog is one situation where the prior expectation about the target presence is integrated with the noisy visual input. We focus on how these sources of information influence the oculomotor behavior and are integrated within an underlying decision-making process. The participants had to judge whether high-/low-density fog scenes displayed on a computer screen contained a pedestrian or a deer by executing a mouse movement toward the response button (mouse-tracking). A variable road sign was added on the scene to manipulate expectations about target identity. We then analyzed the timing and amplitude of the deviation of mouse trajectories toward the incorrect response and, using an eye tracker, the detection time (before fixating the target) and the identification time (fixations on the target). Results revealed that expectation of the correct target results in earlier decisions with less deviation toward the alternative response, this effect being partially explained by the facilitation of target identification.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Atención
/
Sensibilidad de Contraste
/
Detección de Señal Psicológica
/
Toma de Decisiones
/
Incertidumbre
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Cogn Process
Asunto de la revista:
PSICOLOGIA
Año:
2015
Tipo del documento:
Article
Pais de publicación:
Alemania