Arousal modulation of memory and amygdala‐parahippocampal connectivity: A PET‐psychophysiology study in specific phobia
dc.contributor.author | Åhs, Fredrik | en_US |
dc.contributor.author | Palmquist, Åsa Michelgård | en_US |
dc.contributor.author | Pissiota, Anna | en_US |
dc.contributor.author | Appel, Lieuwe | en_US |
dc.contributor.author | Frans, Örjan | en_US |
dc.contributor.author | Liberzon, Israel | en_US |
dc.contributor.author | Furmark, Tomas | en_US |
dc.contributor.author | Fredrikson, Mats | en_US |
dc.date.accessioned | 2011-11-10T15:35:11Z | |
dc.date.available | 2013-01-02T16:32:12Z | en_US |
dc.date.issued | 2011-11 | en_US |
dc.identifier.citation | Åhs, Fredrik ; Palmquist, Åsa Michelgård ; Pissiota, Anna; Appel, Lieuwe; Frans, Örjan ; Liberzon, Israel; Furmark, Tomas; Fredrikson, Mats (2011). "Arousal modulation of memory and amygdalaâ parahippocampal connectivity: A PETâ psychophysiology study in specific phobia." Psychophysiology 48(11). <http://hdl.handle.net/2027.42/86974> | en_US |
dc.identifier.issn | 0048-5772 | en_US |
dc.identifier.issn | 1469-8986 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/86974 | |
dc.description.abstract | Phobic fear is accompanied by intense bodily responses modulated by the amygdala. An amygdala moderated psychophysiological measure related to arousal is electrodermal activity. We evaluated the contributions of electrodermal activity to amygdala‐parahippocampal regional cerebral blood flow (rCBF) during phobic memory encoding in subjects with spider or snake phobia. Recognition memory was increased for phobia‐related slides and covaried with rCBF in the amygdala and the parahippocampal gyrus. The covariation between parahippocampal rCBF and recognition was related to electrodermal activity suggesting that parahippocampal memory processes were associated with sympathetic activity. Electrodermal activity further mediated the amygdala effect on parahippocampal activity. Memory encoding during phobic fear therefore seems contingent on amygdala's influence on arousal and parahippocampal activity. | en_US |
dc.publisher | Blackwell Publishing Inc | en_US |
dc.publisher | Wiley Periodicals, Inc. | en_US |
dc.subject.other | Anxiety | en_US |
dc.subject.other | Learning/Memory | en_US |
dc.subject.other | FMRI/PET/MRI | en_US |
dc.subject.other | Electrodermal | en_US |
dc.subject.other | Amygdala | en_US |
dc.subject.other | Parahippocampal Gyrus | en_US |
dc.title | Arousal modulation of memory and amygdala‐parahippocampal connectivity: A PET‐psychophysiology study in specific phobia | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Physiology | en_US |
dc.subject.hlbsecondlevel | Psychology | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | University of Michigan School of Natural Resources, Department of Psychiatry, Ann Arbor, Michigan, USA | en_US |
dc.contributor.affiliationother | Department of Psychology, Uppsala University, Uppsala, Sweden | en_US |
dc.contributor.affiliationother | Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden | en_US |
dc.contributor.affiliationother | Uppsala Imanet, GE Healthcare, Uppsala, Sweden | en_US |
dc.identifier.pmid | 21729104 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/86974/1/j.1469-8986.2011.01231.x.pdf | |
dc.identifier.doi | 10.1111/j.1469-8986.2011.01231.x | en_US |
dc.identifier.source | Psychophysiology | en_US |
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