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Motivated and controlled attention to emotion: time-course of the late positive potential.
Clin Neurophysiol. 2009 Mar; 120(3):505-10.CN

Abstract

OBJECTIVE

The present study examined the time-course of automatic and controlled modulation of the late positive potential (LPP) during emotional picture viewing.

METHODS

Participants (N=32) viewed neutral and unpleasant stimuli for 6000 ms; at 3000 ms, one of two tones signaled participants to attend either to a more or less arousing portion of the picture. The time-course of the LPP was examined both during the passive viewing and directed attention portions of the trial using the method proposed by Guthrie and Buchwald [Guthrie D, Buchwald JS. Significance testing of difference potentials. Psychophysiology 1991;28(2):240-4].

RESULTS

During passive viewing, the LPP became reliably larger following the presentation of unpleasant pictures from 160 ms onward; the magnitude of the LPP became reliably smaller beginning 620 ms after participants were instructed to attend to the less arousing aspects of unpleasant pictures - and this difference was maintained throughout the duration of the trial.

CONCLUSIONS

The LPP reflects relatively automatic attention to emotional visual stimuli, but is also sensitive to manipulations of directed attention toward arousing versus neutral aspects of such stimuli.

SIGNIFICANCE

These results shed further light on the time-course of emotional and cognitive modulation of the LPP, and suggest that the LPP reflects the relatively rapid and dynamic allocation of increased attention to emotional stimuli.

Authors+Show Affiliations

Department of Psychology, Stony Brook University, Stony Brook, NY 11794-2500, USA. greg.hajcak@stonybrook.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19157974

Citation

Hajcak, Greg, et al. "Motivated and Controlled Attention to Emotion: Time-course of the Late Positive Potential." Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, vol. 120, no. 3, 2009, pp. 505-10.
Hajcak G, Dunning JP, Foti D. Motivated and controlled attention to emotion: time-course of the late positive potential. Clin Neurophysiol. 2009;120(3):505-10.
Hajcak, G., Dunning, J. P., & Foti, D. (2009). Motivated and controlled attention to emotion: time-course of the late positive potential. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, 120(3), 505-10. https://doi.org/10.1016/j.clinph.2008.11.028
Hajcak G, Dunning JP, Foti D. Motivated and Controlled Attention to Emotion: Time-course of the Late Positive Potential. Clin Neurophysiol. 2009;120(3):505-10. PubMed PMID: 19157974.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Motivated and controlled attention to emotion: time-course of the late positive potential. AU - Hajcak,Greg, AU - Dunning,Jonathan P, AU - Foti,Dan, Y1 - 2009/01/20/ PY - 2008/08/19/received PY - 2008/10/25/revised PY - 2008/11/29/accepted PY - 2009/1/23/entrez PY - 2009/1/23/pubmed PY - 2009/6/13/medline SP - 505 EP - 10 JF - Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology JO - Clin Neurophysiol VL - 120 IS - 3 N2 - OBJECTIVE: The present study examined the time-course of automatic and controlled modulation of the late positive potential (LPP) during emotional picture viewing. METHODS: Participants (N=32) viewed neutral and unpleasant stimuli for 6000 ms; at 3000 ms, one of two tones signaled participants to attend either to a more or less arousing portion of the picture. The time-course of the LPP was examined both during the passive viewing and directed attention portions of the trial using the method proposed by Guthrie and Buchwald [Guthrie D, Buchwald JS. Significance testing of difference potentials. Psychophysiology 1991;28(2):240-4]. RESULTS: During passive viewing, the LPP became reliably larger following the presentation of unpleasant pictures from 160 ms onward; the magnitude of the LPP became reliably smaller beginning 620 ms after participants were instructed to attend to the less arousing aspects of unpleasant pictures - and this difference was maintained throughout the duration of the trial. CONCLUSIONS: The LPP reflects relatively automatic attention to emotional visual stimuli, but is also sensitive to manipulations of directed attention toward arousing versus neutral aspects of such stimuli. SIGNIFICANCE: These results shed further light on the time-course of emotional and cognitive modulation of the LPP, and suggest that the LPP reflects the relatively rapid and dynamic allocation of increased attention to emotional stimuli. SN - 1872-8952 UR - https://www.unboundmedicine.com/medline/citation/19157974/Motivated_and_controlled_attention_to_emotion:_time_course_of_the_late_positive_potential_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1388-2457(08)01272-8 DB - PRIME DP - Unbound Medicine ER -