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Chronometric features of processing unpleasant stimuli: a functional MRI-based transcranial magnetic stimulation study


Kaffenberger, Tina; Baumgartner, Thomas; Koeneke, Susan; Jäncke, Lutz; Herwig, Uwe (2008). Chronometric features of processing unpleasant stimuli: a functional MRI-based transcranial magnetic stimulation study. NeuroReport, 19(7):777-781.

Abstract

The quick identification of potentially threatening events is a crucial cognitive capacity to survive in a changing environment. Previous functional MRI data revealed the right dorsolateral prefrontal cortex and the region of the left intraparietal sulcus (IPS) to be involved in the perception of emotionally negative stimuli. For assessing chronometric aspects of emotion processing, we applied transcranial magnetic stimulation above these areas at different times after negative and neutral picture presentation. An interference with emotion processing was found with transcranial magnetic stimulation above the dorsolateral prefrontal cortex 200-300 ms and above the left intraparietal sulcus 240/260 ms after negative stimuli. The data suggest a parallel and conjoint involvement of prefrontal and parietal areas for the identification of emotionally negative stimuli.

The quick identification of potentially threatening events is a crucial cognitive capacity to survive in a changing environment. Previous functional MRI data revealed the right dorsolateral prefrontal cortex and the region of the left intraparietal sulcus (IPS) to be involved in the perception of emotionally negative stimuli. For assessing chronometric aspects of emotion processing, we applied transcranial magnetic stimulation above these areas at different times after negative and neutral picture presentation. An interference with emotion processing was found with transcranial magnetic stimulation above the dorsolateral prefrontal cortex 200-300 ms and above the left intraparietal sulcus 240/260 ms after negative stimuli. The data suggest a parallel and conjoint involvement of prefrontal and parietal areas for the identification of emotionally negative stimuli.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
04 Faculty of Medicine > Psychiatric University Hospital Zurich > Clinic for Clinical and Social Psychiatry Zurich West (former)
Dewey Decimal Classification:150 Psychology
610 Medicine & health
Language:English
Date:2008
Deposited On:31 Oct 2008 11:20
Last Modified:05 Apr 2016 12:32
Publisher:Lippincott Wiliams & Wilkins
ISSN:0959-4965
Publisher DOI:10.1097/WNR.0b013e3282fe2071
Official URL:http://www.neuroreport.com/pt/re/neuroreport/abstract.00001756-200805070-00014.htm;jsessionid=J45T81crRnGK95rkyNvwy6grTxk1r9nCh2pLfQG2LppSnJrPMw6G!-1854079795!181195628!8091!-1
PubMed ID:18418256
Permanent URL: http://doi.org/10.5167/uzh-4932

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