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Neural systems for orienting attention to the location of threat signals: An event-related fMRI study

Gilles Pourtois, Sophie Schwartz, Mohamed L. Seghier, François Lazeyras, Patrik Vuilleumier
2006 NeuroImage  
We used event-related fMRI to determine how brain responses to a neutral visual target are influenced by the emotional expression of faces appearing at the same location during a covert orienting task.  ...  Attention may reflexively shift towards the location of perceived threats, but it is still unclear how these spatial biases recruit the distributed fronto-parietal cortical networks involved in other aspects  ...  Acknowledgments This work is supported by grants from the Swiss National Science Fund to PV (grant # 632.065935) and to SS (grant # 3100-AO-102133) and by donations from the Reuter Foundation.  ... 
doi:10.1016/j.neuroimage.2005.12.034 pmid:16487729 fatcat:lh2h63cmvjgovb3xcayfytxleq

Modulation of spatial attention by fear-conditioned stimuli: an event-related fMRI study

J Armony
2002 Neuropsychologia  
We used event-related functional magnetic resonance imaging (fMRI) to characterise the associated neural responses.  ...  Stimuli that signal threat can capture subjects' attention, leading to more efficient detection of, and faster responses to, events occurring in that part of the environment.  ...  Bradley for valuable discussions, D. McGonigle and C. Büchel for help with data analysis, and P. Vuilleumier for helpful comments on an earlier version of this manuscript.  ... 
doi:10.1016/s0028-3932(01)00178-6 pmid:11900732 fatcat:du7jgwepdzawjbn2fcc4kp424e

Normative data on development of neural and behavioral mechanisms underlying attention orienting toward social–emotional stimuli: An exploratory study

Kara M. Lindstrom, Amanda E. Guyer, Karin Mogg, Brendan P. Bradley, Nathan A. Fox, Monique Ernst, Eric E. Nelson, Ellen Leibenluft, Jennifer C. Britton, Christopher S. Monk, Daniel S. Pine, Yair Bar-Haim
2009 Brain Research  
The ability of positive and negative facial signals to influence attention orienting is crucial to social functioning.  ...  The dot-probe task in an fMRI setting yields both behavioral and neural indices of attention biases towards or away from an emotional cue (happy or angry face).  ...  Acknowledgment This research was supported by the Intramural Research Program of the National Institute of Mental Health, National Institutes of Health.  ... 
doi:10.1016/j.brainres.2009.07.045 pmid:19631626 pmcid:PMC2739245 fatcat:nmj6dol3mrayzeez3b3wllkf2y

Disintegration of Multisensory Signals from the Real Hand Reduces Default Limb Self-Attribution: An fMRI Study

G. Gentile, A. Guterstam, C. Brozzoli, H. H. Ehrsson
2013 Journal of Neuroscience  
These results elucidate the neural bases of the integration of multisensory hand signals according to basic spatiotemporal principles and demonstrate that the disintegration of these signals leads to "  ...  hand during fMRI and investigate the ensuing neural and perceptual correlates.  ...  For each threat event, we identified the maximal and minimal values of the SCR within a 5 s temporal window that was aligned to the event onset.  ... 
doi:10.1523/jneurosci.1363-13.2013 pmid:23946393 pmcid:PMC3742923 fatcat:6gaeigue3zhpngf5wdjmtedvwu

Neurodynamics and connectivity during facial fear perception: The role of threat exposure and signal congruity

Cody A. Cushing, Hee Yeon Im, Reginald B. Adams, Noreen Ward, Daniel N. Albohn, Troy G. Steiner, Kestutis Kveraga
2018 Scientific Reports  
Phase locking to direct-gaze fear (incongruent threat signal) then increased significantly for brief exposures at ~350 ms, and at ~700 ms for longer exposures.  ...  Our results characterize the stages of congruent and incongruent facial threat signal processing and show that stimulus exposure strongly affects the onset and duration of these stages.  ...  Acknowledgements This work was supported with the following funds: NIMH R01MH101194 awarded to KK and RBA, Jr. NIMH K01MH084011 awarded to KK, and NIMH R01107797. NCRR P41RR14075 to A.A.  ... 
doi:10.1038/s41598-018-20509-8 pmid:29426826 pmcid:PMC5807432 fatcat:ttnsybgfh5dapi6i3sfxod3qmu

Interactions Between Transient and Sustained Neural Signals Support the Generation and Regulation of Anxious Emotion

Leah H. Somerville, Dylan D. Wagner, Gagan S. Wig, Joseph M. Moran, Paul J. Whalen, William M. Kelley
2012 Cerebral Cortex  
This fMRI study utilized a mixed block-event-related emotional provocation paradigm in 55 healthy participants to simultaneously measure brief and persistent anxious emotional responses, testing the specificity  ...  to potential threat cues.  ...  Casey, Christine Colyer, Todd Heatherton, Tammy Moran, Lisa Shin, and George Wolford for assistance and helpful comments, Kevin LaBar for sharing stimulus materials, and Antonia Hamilton for sharing fMRI  ... 
doi:10.1093/cercor/bhr373 pmid:22250290 pmcid:PMC3513951 fatcat:fqvugo2okzfebgg6l6oy7tnhs4

Neural Biases to Covert and Overt Signals of Fear: Dissociation by Trait Anxiety and Depression

Leanne M. Williams, Andrew H. Kemp, Kim Felmingham, Belinda J. Liddell, Donna M. Palmer, Richard A. Bryant
2007 Journal of Cognitive Neuroscience  
this study, event-related potentials (ERPs) were used to ex- amine the time course of neural responses to facial fear stimuli (versus neutral) presented overtly (for 500 msec with con scious attention)  ...  DISCUSSION Consistent with the view that neural systems give prece- dence to signals of potential danger, facial signals of fear were found to elicit increases in neural activity relative to neutral across  ... 
doi:10.1162/jocn.2007.19.10.1595 pmid:17854280 fatcat:p5c2wbkqbffg5d336votnaf7uy

LOOKING UNDER THE HOOD OF THE DOT-PROBE TASK: AN fMRI STUDY IN ANXIOUS YOUTH

Rebecca B. Price, Greg J. Siegle, Jennifer S. Silk, Cecile D. Ladouceur, Ashley McFarland, Ronald E. Dahl, Neal D. Ryan
2014 Depression and Anxiety  
Conclusions: In the largest dot-probe fMRI sample to date, both anxious and nonanxious youth showed a neural pattern consistent with successful disengagement of threat reactivity in the rdACC.  ...  required participants to identify the location of a dot replacing either a neutral or fearful face in a pair containing both faces.  ...  We acknowledge the strong contributions of the Child Anxiety Treatment Study staff in carrying out this study, and appreciate the willingness of our participants to provide data for this study.  ... 
doi:10.1002/da.22255 pmid:24578016 pmcid:PMC3992818 fatcat:5stouibcsvd35oc2i5aidt7bai

Afferent cardiac signals modulate attentional engagement to low spatial frequency fearful faces

Ruben T. Azevedo, Deborah Badoud, Manos Tsakiris
2018 Cortex  
For example, baroreceptor activation has been shown to enhance the processing of threat-signalling stimuli.  ...  These findings expand our mechanistic understanding of how bodyebrain interactions may impact the visual processing of fearful stimuli and contribute to the increased attentional capture of threat signals  ...  More recently, the efficiency of the attentional orienting system has been linked to crucial transdiagnostic processes.  ... 
doi:10.1016/j.cortex.2017.06.016 pmid:28754271 fatcat:4o7t2pifwbfwlilfpgxowrqunm

Neurodynamics and connectivity during facial fear perception: The role of threat exposure and signal congruity [article]

Cody Cushing, Hee Yeon Im, Reginald B. Adams, Noreen Ward, Daniel N. Albohn, Troy G. Steiner, Kestutis Kveraga
2017 bioRxiv   pre-print
We replicated the exposure time by gaze direction interaction in fMRI (N=23), and observed greater early phase locking to averted-gaze fear (congruent threat signal) with MEG (N=60) in a network of face  ...  Phase locking to direct-gaze fear (incongruent threat signal) then increased significantly for brief exposures at ~350 ms, and at ~700 ms for longer exposures.  ...  We first validated our experimental design as a direct comparison to previous efforts by replicating the findings of block-design experiments [9, 14, 15] using an event-related paradigm in fMRI.  ... 
doi:10.1101/149112 fatcat:nfpglmmgcnbptmqbkzgt5ptj5y

How brains beware: neural mechanisms of emotional attention

Patrik Vuilleumier
2005 Trends in Cognitive Sciences  
The amygdala plays a crucial role in providing both direct and indirect top-down signals on sensory pathways, which can influence the representation of emotional events, especially when related to threat  ...  This work should help to elucidate the neural processes and temporal dynamics governing the integration of cognitive and affective influences in attention and behaviour.  ...  The aim of this review is to highlight how some aspects of selective attention might be influenced by the affective significance of sensory events, and how such influences implicate specific neural systems  ... 
doi:10.1016/j.tics.2005.10.011 pmid:16289871 fatcat:5vvv3jil4jbe5a4wz5hbyo5qt4

Attention biases, anxiety, and development: toward or away from threats or rewards?

Tomer Shechner, Jennifer C. Britton, Koraly Pérez-Edgar, Yair Bar-Haim, Monique Ernst, Nathan A. Fox, Ellen Leibenluft, Daniel S. Pine
2011 Depression and Anxiety  
Building on this work, we then turn to the treatment of pediatric anxiety, where manipulation of attention to threat and/or reward may serve a therapeutic role as a component of Attention Bias Key words  ...  The study of attention biases appears particularly pertinent to developmental research, as attention affects learning and has down-stream effects on behavior.  ...  Thus, for the studies of attention orienting, imaging studies seek the neural concomitants of enhanced threat bias in patients.  ... 
doi:10.1002/da.20914 pmid:22170764 pmcid:PMC3489173 fatcat:5slktonxpbhsfay2lrgznuptcy

Page 1679 of Journal of Cognitive Neuroscience Vol. 21, Issue 9 [page]

2009 Journal of Cognitive Neuroscience  
attention to the location of threat signals: An event-related fMRI study. Neuroimage, 31, 920-933. Ross, E. D., & Monnot, M. (2008).  ...  Effects of attention and emotion on face processing in the human brain: An event-related fMRI study. Neuron, 30, 829-841 Vuilleumier, P., Richardson, M. P., Armony, J. L., Driver, J., & Dolan, R.  ... 

Facial expression and selective attention

Patrik Vuilleumier
2002 Current Opinion in Psychiatry  
Recent findings demonstrate that faces with an emotional expression tend to attract attention more than neutral faces, especially when having some threat-related value (anger or fear).  ...  analysis of, sensory inputs and thus bias competition for attention toward the representation of emotionally salient stimuli.  ...  Effects of attention and emotion on face processing in the human brain: an event-related fmri study. Neuron 2001; 30:829±841.  ... 
doi:10.1097/00001504-200205000-00011 fatcat:rtb3m47ufje75mqlstv7s77lum

The Electrical Aftermath: Brain Signals of Posttraumatic Stress Disorder Filtered Through a Clinical Lens

Mamona Butt, Elizabeth Espinal, Robin L. Aupperle, Valentina Nikulina, Jennifer L. Stewart
2019 Frontiers in Psychiatry  
The most consistent findings within the EEG time domain focused on event related potentials (ERPs) include: 1) exaggerated frontocentral responses (contingent negative variation, mismatch negativity, and  ...  This review aims to identify patterns of electrical signals identified using electroencephalography (EEG) linked to posttraumatic stress disorder (PTSD) diagnosis and symptom dimensions.  ...  Stewart wishes to thank students from the Research on Anxiety, Addiction, and Depression lab at Queens College who motivated this review.  ... 
doi:10.3389/fpsyt.2019.00368 pmid:31214058 pmcid:PMC6555259 fatcat:cfspknxvvfbq7mnpcr27akt2km
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