Abstract
Recently, speed of presentation of facially expressive stimuli was found to influence the processing of compound threat cues (e.g., anger/fear/gaze). For instance, greater amygdala responses were found to clear (e.g., direct gaze anger/averted gaze fear) versus ambiguous (averted gaze anger/direct gaze fear) combinations of threat cues when rapidly presented (33 and 300 ms), but greater to ambiguous versus clear threat cues when presented for more sustained durations (1, 1.5, and 2 s). A working hypothesis was put forth (Adams et al., 2012) that these effects were due to differential magnocellular versus parvocellular pathways contributions to the rapid versus sustained processing of threat, respectively. To test this possibility directly here, we restricted visual stream processing in the fMRI environment using facially expressive stimuli specifically designed to bias visual input exclusively to the magnocellular versus parvocellular pathways. We found that for magnocellular-biased stimuli, activations were predominantly greater to clear versus ambiguous threat-gaze pairs (on par with that previously found for rapid presentations of threat cues), whereas activations to ambiguous versus clear threat-gaze pairs were greater for parvocellular-biased stimuli (on par with that previously found for sustained presentations). We couch these findings in an adaptive dual process account of threat perception and highlight implications for other dual process models within psychology.
| Original language | English (US) |
|---|---|
| Title of host publication | Progress in Brain Research |
| Editors | Narayanan Srinivasan |
| Publisher | Elsevier B.V. |
| Pages | 71-87 |
| Number of pages | 17 |
| ISBN (Print) | 9780444642523 |
| DOIs | |
| State | Published - Jan 1 2019 |
Publication series
| Name | Progress in Brain Research |
|---|---|
| Volume | 247 |
| ISSN (Print) | 0079-6123 |
| ISSN (Electronic) | 1875-7855 |
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All Science Journal Classification (ASJC) codes
- Neuroscience(all)
Cite this
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Differential magnocellular versus parvocellular pathway contributions to the combinatorial processing of facial threat. / Adams, Jr., Reginald; Im, Hee Yeon; Cushing, Cody; Boshyan, Jasmine; Ward, Noreen; Albohn, Daniel N.; Kveraga, Kestutis.
Progress in Brain Research. ed. / Narayanan Srinivasan. Elsevier B.V., 2019. p. 71-87 (Progress in Brain Research; Vol. 247).Research output: Chapter in Book/Report/Conference proceeding › Chapter
TY - CHAP
T1 - Differential magnocellular versus parvocellular pathway contributions to the combinatorial processing of facial threat
AU - Adams, Jr., Reginald
AU - Im, Hee Yeon
AU - Cushing, Cody
AU - Boshyan, Jasmine
AU - Ward, Noreen
AU - Albohn, Daniel N.
AU - Kveraga, Kestutis
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Recently, speed of presentation of facially expressive stimuli was found to influence the processing of compound threat cues (e.g., anger/fear/gaze). For instance, greater amygdala responses were found to clear (e.g., direct gaze anger/averted gaze fear) versus ambiguous (averted gaze anger/direct gaze fear) combinations of threat cues when rapidly presented (33 and 300 ms), but greater to ambiguous versus clear threat cues when presented for more sustained durations (1, 1.5, and 2 s). A working hypothesis was put forth (Adams et al., 2012) that these effects were due to differential magnocellular versus parvocellular pathways contributions to the rapid versus sustained processing of threat, respectively. To test this possibility directly here, we restricted visual stream processing in the fMRI environment using facially expressive stimuli specifically designed to bias visual input exclusively to the magnocellular versus parvocellular pathways. We found that for magnocellular-biased stimuli, activations were predominantly greater to clear versus ambiguous threat-gaze pairs (on par with that previously found for rapid presentations of threat cues), whereas activations to ambiguous versus clear threat-gaze pairs were greater for parvocellular-biased stimuli (on par with that previously found for sustained presentations). We couch these findings in an adaptive dual process account of threat perception and highlight implications for other dual process models within psychology.
AB - Recently, speed of presentation of facially expressive stimuli was found to influence the processing of compound threat cues (e.g., anger/fear/gaze). For instance, greater amygdala responses were found to clear (e.g., direct gaze anger/averted gaze fear) versus ambiguous (averted gaze anger/direct gaze fear) combinations of threat cues when rapidly presented (33 and 300 ms), but greater to ambiguous versus clear threat cues when presented for more sustained durations (1, 1.5, and 2 s). A working hypothesis was put forth (Adams et al., 2012) that these effects were due to differential magnocellular versus parvocellular pathways contributions to the rapid versus sustained processing of threat, respectively. To test this possibility directly here, we restricted visual stream processing in the fMRI environment using facially expressive stimuli specifically designed to bias visual input exclusively to the magnocellular versus parvocellular pathways. We found that for magnocellular-biased stimuli, activations were predominantly greater to clear versus ambiguous threat-gaze pairs (on par with that previously found for rapid presentations of threat cues), whereas activations to ambiguous versus clear threat-gaze pairs were greater for parvocellular-biased stimuli (on par with that previously found for sustained presentations). We couch these findings in an adaptive dual process account of threat perception and highlight implications for other dual process models within psychology.
UR - http://www.scopus.com/inward/record.url?scp=85064544525&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064544525&partnerID=8YFLogxK
U2 - 10.1016/bs.pbr.2019.03.006
DO - 10.1016/bs.pbr.2019.03.006
M3 - Chapter
SN - 9780444642523
T3 - Progress in Brain Research
SP - 71
EP - 87
BT - Progress in Brain Research
A2 - Srinivasan, Narayanan
PB - Elsevier B.V.
ER -