Brain potentials in perception: picture complexity and emotional arousal.

Brain potentials in perception: picture complexity and emotional arousal. Research Abstract Details 

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Brain potentials in perception: picture complexity and emotional arousal. Abstract Text:

Margaret M Bradley,Steven Hamby,Andreas ,Peter J Lang,

Event-related potentials (ERPs) were measured while participants viewed affectively arousing and neutral pictures depicting either simple figure-ground compositions or more complex scenes to assess the timing and topography of perceptual and emotional modulation. Emotional pictures elicited a larger late positive potential than neutral pictures in a 400-700-ms window over centro-parietal sensors both for pictures with simple figure-ground composition and for more complex scenes. Picture composition affected ERPs beginning earlier (around 150 ms), with simple figure-ground compositions eliciting less positivity over posterior sensors and less negativity over frontal sensors. Emotionality had little effect on modulation of these early ERPs. These data suggest that the late centro-parietal positive potential primarily reflects motivational relevance, and that earlier posterior (and anterior) components reflect, at least in part, differences in a picture's perceptual organization.

Brain potentials in perception: picture complexity and emotional arousal. Publishing Authors By Initials

MM Bradley,S Hamby,A ,PJ Lang,

For similar reaction time research abstracts see: reaction time research

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Brain potentials in perception: picture complexity and emotional arousal. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Psychophysiology

VOLUME: 44

Page Numbers: 364-73

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ISSN: 0048-5772

DAY: 3

MONTH: May

YEAR: 2007

Brain potentials in perception: picture complexity and emotional arousal. Information

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LANGUAGE: eng

NlmUniqueID: 142657

Brain potentials in perception: picture complexity and emotional arousal. Keywords Mesh Terms:

KEYWORDS: Reaction Time

MESH TERMS: physiology

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Grant and Affiliation Information for Brain potentials in perception: picture complexity and emotional arousal.

AFFILIATION: Center for the Study of Emotion and Attention, University of Florida, Gainesville, FL 32610, USA.

Country: United States

AGENCY: United States NIMH

GRANT: P50 MH 72850

ACRONYM: MH

MEDLINETA: Psychophysiology

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