M. Mermillod
Are coarse scales sufficient for fast detection of visual threat?
Mermillod, M.; Droit-Volet, S.; Devaux, D.; Schaefer, A.; Vermeulen, N.
Authors
S. Droit-Volet
D. Devaux
A. Schaefer
N. Vermeulen
Abstract
It has recently been suggested that low-spatial-frequency information would provide rapid visual cues to the amygdala for basic but ultrarapid behavioral responses to dangerous stimuli. The present behavioral study investigated the role of different spatial-frequency channels in visually detecting dangerous stimuli belonging to living or nonliving categories. Subjects were engaged in a visual detection task involving dangerous stimuli, and subjects' behavioral responses were assessed in association with their fear expectations (induced by an aversive 90-dB white noise). Our results showed that, despite its crudeness, low-spatial-frequency information could constitute a sufficient signal for fast recognition of visual danger in a context of fear expectation. In addition, we found that this effect tended to be specific for living entities. These results were obtained despite a strong perceptual bias toward faster recognition of high-spatial-frequency stimuli under supraliminal perception durations.
Citation
Mermillod, M., Droit-Volet, S., Devaux, D., Schaefer, A., & Vermeulen, N. (2010). Are coarse scales sufficient for fast detection of visual threat?. Psychological Science, 21(10), 1429-1437. https://doi.org/10.1177/0956797610381503
Journal Article Type | Article |
---|---|
Publication Date | Oct 1, 2010 |
Deposit Date | Oct 11, 2010 |
Journal | Psychological Science |
Print ISSN | 0956-7976 |
Electronic ISSN | 1467-9280 |
Publisher | SAGE Publications |
Peer Reviewed | Peer Reviewed |
Volume | 21 |
Issue | 10 |
Pages | 1429-1437 |
DOI | https://doi.org/10.1177/0956797610381503 |
Keywords | Fear, Perception, Threat detection, Spatial frequencies. |
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