Title
Red Diffuse Light Suppresses the Accelerated Perception of Fear
Abbreviated Journal Title
Psychol. Sci.
Keywords
magnocellular; emotion; evolution; action; TEMPORAL-ORDER; SUPERIOR COLLICULUS; CORTICAL PATHWAYS; VISUAL-ATTENTION; BACKGROUND COLOR; RHESUS-MONKEY; REACTION-TIME; M-CHANNELS; AMYGDALA; TRANSIENT; Psychology, Multidisciplinary
Abstract
Prioritization of affective events may occur via two parallel pathways originating from the retina-a parvocellular (P) pathway projecting to ventral-stream structures responsible for object recognition or a faster and phylogenetically older magnocellular (M) pathway projecting to dorsal-stream structures responsible for localization and action. It has previously been demonstrated that retinal exposure to red diffuse light suppresses M-cell neural activity. We tested whether the fast propagation along the dorsal-action pathway drives an accelerated conduction of fear-based content. Using a visual prior-entry procedure, we assessed accelerated stimulus perception while either suppressing the M pathway with red diffuse light or leaving it unaffected with green diffuse light. We show that the encoding of fearful faces is accelerated, but not when M-channel activity is suppressed, revealing a dissociation that implicates a privileged neural link between emotion and action that begins at the retina.
Journal Title
Psychological Science
Volume
21
Issue/Number
7
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
992
Last Page
999
WOS Identifier
ISSN
0956-7976
Recommended Citation
"Red Diffuse Light Suppresses the Accelerated Perception of Fear" (2010). Faculty Bibliography 2010s. 931.
https://stars.library.ucf.edu/facultybib2010/931
Comments
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