Coarse threat images reveal theta oscillations in the amygdala: a magnetoencephalography study

Frances A. Maratos, Karin Mogg, Brendan P. Bradley, Gina Rippon, Carl Senior

Research output: Contribution to journalArticle

Abstract

Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated differences in amygdala activity between LSF threat-related and LSF neutral faces (50-250 msec after face onset). These differences were evident in the theta range (4-8 Hz) and were accompanied by power changes within visual and frontal regions. Our results support the view that the amygdala is involved in the early processing of coarse threat related information and that theta is important in integrating activity within emotion-processing networks.
Original languageEnglish
Pages (from-to)133-143
Number of pages11
JournalCognitive, Affective and Behavioral Neuroscience
Volume9
Issue number2
DOIs
Publication statusPublished - Jun 2009

Fingerprint

Magnetoencephalography
Amygdala
Magnetic Resonance Imaging
Cues
Emotions
Research

Keywords

  • neurocognitive models
  • neural system
  • threat-related information
  • amygdala
  • fMRI research
  • coarse visual threat
  • low spatial frequency
  • fearful faces
  • neural responses
  • magnetoencephalography

Cite this

Maratos, Frances A. ; Mogg, Karin ; Bradley, Brendan P. ; Rippon, Gina ; Senior, Carl. / Coarse threat images reveal theta oscillations in the amygdala: a magnetoencephalography study. In: Cognitive, Affective and Behavioral Neuroscience. 2009 ; Vol. 9, No. 2. pp. 133-143.
@article{4630113871064299ae119a26367d1a03,
title = "Coarse threat images reveal theta oscillations in the amygdala: a magnetoencephalography study",
abstract = "Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated differences in amygdala activity between LSF threat-related and LSF neutral faces (50-250 msec after face onset). These differences were evident in the theta range (4-8 Hz) and were accompanied by power changes within visual and frontal regions. Our results support the view that the amygdala is involved in the early processing of coarse threat related information and that theta is important in integrating activity within emotion-processing networks.",
keywords = "neurocognitive models, neural system, threat-related information, amygdala, fMRI research, coarse visual threat, low spatial frequency, fearful faces, neural responses, magnetoencephalography",
author = "Maratos, {Frances A.} and Karin Mogg and Bradley, {Brendan P.} and Gina Rippon and Carl Senior",
year = "2009",
month = "6",
doi = "10.3758/CABN.9.2.133",
language = "English",
volume = "9",
pages = "133--143",
journal = "Cognitive, Affective and Behavioral Neuroscience",
issn = "1530-7026",
publisher = "Springer",
number = "2",

}

Coarse threat images reveal theta oscillations in the amygdala: a magnetoencephalography study. / Maratos, Frances A.; Mogg, Karin; Bradley, Brendan P.; Rippon, Gina; Senior, Carl.

In: Cognitive, Affective and Behavioral Neuroscience, Vol. 9, No. 2, 06.2009, p. 133-143.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Coarse threat images reveal theta oscillations in the amygdala: a magnetoencephalography study

AU - Maratos, Frances A.

AU - Mogg, Karin

AU - Bradley, Brendan P.

AU - Rippon, Gina

AU - Senior, Carl

PY - 2009/6

Y1 - 2009/6

N2 - Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated differences in amygdala activity between LSF threat-related and LSF neutral faces (50-250 msec after face onset). These differences were evident in the theta range (4-8 Hz) and were accompanied by power changes within visual and frontal regions. Our results support the view that the amygdala is involved in the early processing of coarse threat related information and that theta is important in integrating activity within emotion-processing networks.

AB - Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated differences in amygdala activity between LSF threat-related and LSF neutral faces (50-250 msec after face onset). These differences were evident in the theta range (4-8 Hz) and were accompanied by power changes within visual and frontal regions. Our results support the view that the amygdala is involved in the early processing of coarse threat related information and that theta is important in integrating activity within emotion-processing networks.

KW - neurocognitive models

KW - neural system

KW - threat-related information

KW - amygdala

KW - fMRI research

KW - coarse visual threat

KW - low spatial frequency

KW - fearful faces

KW - neural responses

KW - magnetoencephalography

UR - http://www.scopus.com/inward/record.url?scp=67649545100&partnerID=8YFLogxK

UR - http://cabn.psychonomic-journals.org/content/9/2/133.abstract

U2 - 10.3758/CABN.9.2.133

DO - 10.3758/CABN.9.2.133

M3 - Article

VL - 9

SP - 133

EP - 143

JO - Cognitive, Affective and Behavioral Neuroscience

JF - Cognitive, Affective and Behavioral Neuroscience

SN - 1530-7026

IS - 2

ER -