Abstract：
:The type of threat shown in an image influences the emotional salience of unpleasant images. Seventy-four participants (21 male) rated high threat, moderate threat, and neutral images featuring reptiles, firearms, or humans as electroencephalographic activity was recorded. The magnitude of P3b amplitudes coincided with the threat level of firearm and human images, whereas scenes of attacking snakes and aimed handguns evoked more positive late positive component (LPC) activity than non-attacking or neutral versions of these same stimuli. The lateralised early posterior negativity (EPN) in temporal occipital regions was most negative for firearms, followed by reptiles, and then humans, while the midline EPN in occipital regions was most negative for reptiles, followed by firearms, and then humans. These findings imply late event-related potential positivity is influenced by social relevance (the P3b) or the level of aggression displayed by the stimulus (the LPC), whereas stimulus type may be indexed by EPN modulation.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
Miller RK,Martin FHdoi
10.1016/j.biopsycho.2019.107788subject
Has Abstractpub_date
2020-01-01 00:00:00pages
107788eissn
0301-0511issn
1873-6246pii
S0301-0511(19)30025-0journal_volume
149pub_type
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