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High Spider-Fearful and Low Spider-Fearful Individuals Differentially Perceive the Speed of Approaching, but not Receding, Spider Stimuli

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Abstract

The looming vulnerability model of fear predicts that high fearful individuals, as compared to low fearful individuals, will display a heightened tendency to perceive feared stimuli as moving disproportionately quickly when such stimuli are approaching, but not when they are receding. Experiments testing this prediction have been compromised by methodological limitations that preclude their ability to determine its validity. The present study employed a novel methodology designed to overcome these limitations to examine whether individuals with heightened levels of spider-fear exhibit this predicted perceptual bias. Two groups of participants who differed in spider-fear completed a perceptual task that presented stimulus pairs comprising spider and butterfly images under two movement conditions. In one condition images displayed approaching movement, while in the other condition images displayed receding movement. Participants were required to indicate which stimulus they perceived to move fastest. As predicted, it was found that participants with heightened spider-fear demonstrated a significantly greater tendency than low spider-fearful participants to perceive the spider stimuli as moving fastest, only when stimuli displayed approaching movement. Implications and avenues for future research are discussed.

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Notes

  1. 80% power (1 − β = 0.80) to detect a medium sized ANOVA interaction effect involving between-subject and within-subject factors (ηp2 = 0.06), in the presence of a small correlation (r = .1) amongst repeated measurements, when employing a 0.05 alpha criterion for significance (Faul et al. 2007).

  2. The set of images used in the experiment can be obtained by contacting the Corresponding Author.

  3. Post-hoc analyses determined that this interaction effect was not moderated by the magnitude of the relative difference in movement speed between stimulus pair images.

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Funding

This study was funded by Australian Research Council Laureate Fellowship: FL170100167 and Australian Research Council Discovery Project: DP170104533.

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Correspondence to Julian Basanovic.

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Conflict of Interest

Julian Basanovic, Laurence Dean, John H. Riskind and Colin MacLeod declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all individual participants included in the study.

Animal Rights

This article does not contain any studies with animals performed by any of the authors.

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Basanovic, J., Dean, L., Riskind, J.H. et al. High Spider-Fearful and Low Spider-Fearful Individuals Differentially Perceive the Speed of Approaching, but not Receding, Spider Stimuli. Cogn Ther Res 43, 514–521 (2019). https://doi.org/10.1007/s10608-018-9970-1

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  • DOI: https://doi.org/10.1007/s10608-018-9970-1

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