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Think positive! Resolving human motion ambiguity in the presence of disease threat

Magalhães, Ana C. ; Silva, Fábio ; Lameirinha, Inês ; Rodrigues, Mariana ; Soares, Sandra C.

Cognition and emotion, 2024-02, Vol.38 (1), p.71-89 [Periódico revisado por pares]

England: Routledge

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  • Título:
    Think positive! Resolving human motion ambiguity in the presence of disease threat
  • Autor: Magalhães, Ana C. ; Silva, Fábio ; Lameirinha, Inês ; Rodrigues, Mariana ; Soares, Sandra C.
  • Assuntos: Ambiguity ; Approach-Avoidance ; Avoidance behavior ; Behavioural immune system ; Bias ; bistable human motion ; Cues ; Humans ; Illnesses ; Immune system ; Motion ; Motion Perception ; perception ; point-light walkers ; Threats ; Visual Perception
  • É parte de: Cognition and emotion, 2024-02, Vol.38 (1), p.71-89
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Recently, approach-avoidance tendencies and visual perception biases have been increasingly studied using bistable point-light walkers (PLWs). Prior studies have found a facing-the-viewer bias when one is primed with general threat stimuli (e.g. angry faces), explained by the "error management theory", as failing to detect a threat as approaching is riskier than the opposite. Importantly, no study has explored how disease threat - linked to the behavioural immune system - might affect this bias. This study aimed to explore whether disease-signalling cues can alter how we perceive the motion direction of ambiguous PLWs. Throughout 3 experiments, participants indicated the motion direction of a bistable PLW previously primed with a control or disease-signalling stimuli - that is, face with a surgical mask (Experiment 1), sickness sound (Experiment 2), or face with a disease cue (Experiment 3). Results showed that sickness cues do not significantly modulate the perception of approach-avoidance behaviours. However, a pattern emerged in Experiments 2 and 3, suggesting that sickness stimuli led to more facing away percepts. Unlike other types of threat, this implies that disease-related threat stimuli might trigger a distinct perceptual bias, indicating a preference to avoid a possible infection source. Nonetheless, this finding warrants future investigations.
  • Editor: England: Routledge
  • Idioma: Inglês
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