The influence of anxiety on visual entropy of experienced drivers

Autor(es)

Gotardi, Gisele ; Navarro, Martina ; Polastri, Paula F. ; Schor, Paulo ; Orth, Dominic ; Oudejans, Raoul ; van der Kamp, John ; Savelsbergh, Geert ; Rodrigues, Sergio T. ; ACM

• Tipo de documento: Artigo Científico
• Fonte: EYE TRACKING AND VISUALIZATION (ETVIS 2018); v. N/A, p. 4-pg., 2018-01-01.

Resumo

This study tested the use of entropy to identify changes on behavior of drivers under pressure. Sixteen experienced drivers drove in a simulator wearing a head-mounted eye tracker under lowand high-anxiety conditions. Anxiety was induced by manipulating some psychological factors such as peer-pressure. Fixations transitions between AOIs (lane, speedometer and mirrors) were calculated through first-order transition matrix, transformed to Markov probability matrix and adjusted into the entropy equation. Drivers showed greater state-anxiety scores and higher mean heart rates following manipulation. Under anxiety, drivers showed higher visual entropy, indicating a more random scanning. The randomness implies into a poorer acquisition of information and may indicate an impaired top-down control of attention provoked by anxiety. (AU)

• Processo FAPESP: 15/10851-3 - Efeitos de ansiedade e personalidade sobre a condução de automóveis: rastreamento ocular de motoristas experientes e novatos
• Beneficiário: Gisele Chiozi Gotardi
• Modalidade de apoio: Bolsas no Brasil - Mestrado