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Emotive interference during cognitive processing in major depression: An investigation of lower alpha 1 activity

Journal Article


Abstract


  • Background: Individuals with Major Depressive Disorder (MDD) tend to be more susceptible to

    distraction by negative emotional material than their non-depressed counterparts. This extends

    to an enhanced vulnerability to interference from mood-congruent stimuli during cognitive

    processing. The current study investigated the electrophysiological correlates of competing

    cognitive and emotional processing demands in MDD.

    Methods: Event-related alpha activity within the lower alpha 1 band was examined during the

    online information retention phase of a non-emotiveWMtaskwith extraneous emotional stimuli

    (positive, negative and neutral) presented as background images. EEG activity over posterior

    parietal cortex was compared between 15 acutely depressed and 16 never depressed righthanded

    women.

    Results: A valence specific dissociation in lower alpha 1 activity was observed between the two

    groups, consistent with greater attentional resource allocation to positive distracters in control

    participants and to negative distracters in MDD participants. No group differences were seen

    when neutral distracters were displayed.

    Conclusions: These results demonstrate that activity within the lower alpha 1 band is sensitive to

    competing emotional and cognitive processing demands and highlight the importance of posterior

    parietal regions in depression-related susceptibility to affective distractibility during cognitive

    processing.

Authors


  •   Segrave, Rebecca A. (external author)
  •   Thomson, R H. (external author)
  •   Cooper, Nicholas R (external author)
  •   Croft, Rodney J.
  •   Sheppard, D. M. (external author)
  •   Fitzgerald, Paul (external author)

Publication Date


  • 2012

Citation


  • Segrave, R. A., Thomson, R. H., Cooper, N. R., Croft, R. J., Sheppard, D. M. & Fitzgerald, P. B. (2012). Emotive interference during cognitive processing in major depression: An investigation of lower alpha 1 activity. Journal of Affective Disorders, 141 (2-3), 185-193.

Scopus Eid


  • 2-s2.0-84867576745

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3044

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 185

End Page


  • 193

Volume


  • 141

Issue


  • 2-3

Place Of Publication


  • Netherlands

Abstract


  • Background: Individuals with Major Depressive Disorder (MDD) tend to be more susceptible to

    distraction by negative emotional material than their non-depressed counterparts. This extends

    to an enhanced vulnerability to interference from mood-congruent stimuli during cognitive

    processing. The current study investigated the electrophysiological correlates of competing

    cognitive and emotional processing demands in MDD.

    Methods: Event-related alpha activity within the lower alpha 1 band was examined during the

    online information retention phase of a non-emotiveWMtaskwith extraneous emotional stimuli

    (positive, negative and neutral) presented as background images. EEG activity over posterior

    parietal cortex was compared between 15 acutely depressed and 16 never depressed righthanded

    women.

    Results: A valence specific dissociation in lower alpha 1 activity was observed between the two

    groups, consistent with greater attentional resource allocation to positive distracters in control

    participants and to negative distracters in MDD participants. No group differences were seen

    when neutral distracters were displayed.

    Conclusions: These results demonstrate that activity within the lower alpha 1 band is sensitive to

    competing emotional and cognitive processing demands and highlight the importance of posterior

    parietal regions in depression-related susceptibility to affective distractibility during cognitive

    processing.

Authors


  •   Segrave, Rebecca A. (external author)
  •   Thomson, R H. (external author)
  •   Cooper, Nicholas R (external author)
  •   Croft, Rodney J.
  •   Sheppard, D. M. (external author)
  •   Fitzgerald, Paul (external author)

Publication Date


  • 2012

Citation


  • Segrave, R. A., Thomson, R. H., Cooper, N. R., Croft, R. J., Sheppard, D. M. & Fitzgerald, P. B. (2012). Emotive interference during cognitive processing in major depression: An investigation of lower alpha 1 activity. Journal of Affective Disorders, 141 (2-3), 185-193.

Scopus Eid


  • 2-s2.0-84867576745

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3044

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 185

End Page


  • 193

Volume


  • 141

Issue


  • 2-3

Place Of Publication


  • Netherlands