Specific fear modulates attentional selectivity during visual search: Electrophysiological insights from the N2pc |
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| Authors: | Mathias Weymar Antje B. M. Gerdes Andreas Löw Georg W. Alpers Alfons O. Hamm |
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| Affiliation: | 1. Department of Biological and Clinical Psychology, University of Greifswald, , Greifswald, Germany;2. Center for the Study of Emotion and Attention, University of Florida, , Gainesville, Florida, USA;3. Department of Clinical and Biological Psychology, School of Social Sciences, University of Mannheim, , Mannheim, Germany |
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| Abstract: | In the present study, we used high‐density EEG during a visual search task to investigate the dynamics of spatial attention to fear‐relevant targets and background stimuli in small animal phobia during a visual search task. Twenty‐five spider fearful (22 females) and 25 healthy nonfearful participants (19 females) were measured, while searching for discrepant objects in visual arrays. Compared to nonfearful participants, s pider fearful individuals showed a more enhanced posterior N2pc to spider (vs. butterfly) targets in an array of flowers. Furthermore, spider fearful participants showed enhanced hypervigilance for all presented stimuli compared to controls as reflected by enhanced N1 amplitudes (160–200 ms). Our findings provide neural evidence for early, enhanced selective spatial attention for fear‐relevant stimuli. |
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| Keywords: | ERPs Spider phobia N2pc Pd Spatial attention Hypervigilance N1 |
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