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Differential effects of emotional cues on components of prospective memory: an ERP study.

Cona G, Kliegel M, Bisiacchi PS - Front Hum Neurosci (2015)

Bottom Line: So far, little is known about the neurocognitive mechanisms associated with emotion effects on prospective memory (PM) performance.ERP results suggest that emotional PM cues not only trigger an automatic, bottom-up, capture of attention, but also boost a greater allocation of top-down processes.Unpleasant pictures seemed to modulate especially the retrospective component, as revealed by the largest old/new effect being elicited by unpleasant PM pictures in the recognition task.

View Article: PubMed Central - PubMed

Affiliation: Department of General Psychology, University of Padua Padua, Italy.

ABSTRACT
So far, little is known about the neurocognitive mechanisms associated with emotion effects on prospective memory (PM) performance. Thus, this study aimed at disentangling possible mechanisms for the effects of emotional valence of PM cues on the distinct phases composing PM by investigating event-related potentials (ERPs). Participants were engaged in an ongoing N-back task while being required to perform a PM task. The emotional valence of both the ongoing pictures and the PM cues was manipulated (pleasant, neutral, unpleasant). ERPs were recorded during the PM phases, such as encoding, maintenance, and retrieval of the intention. A recognition task including PM cues and ongoing stimuli was also performed at the end of the sessions. ERP results suggest that emotional PM cues not only trigger an automatic, bottom-up, capture of attention, but also boost a greater allocation of top-down processes. These processes seem to be recruited to hold attention toward the emotional stimuli and to retrieve the intention from memory, likely because of the motivational significance of the emotional stimuli. Moreover, pleasant PM cues seemed to modulate especially the prospective component, as revealed by changes in the amplitude of the ERP correlates of strategic monitoring as a function of the relevance of the valence for the PM task. Unpleasant pictures seemed to modulate especially the retrospective component, as revealed by the largest old/new effect being elicited by unpleasant PM pictures in the recognition task.

No MeSH data available.


Encoding phase. (A) Design scores demonstrating a contrast between emotional pictures and neutral pictures and saliences at select electrodes. (B) Grand-averaged event-related potentials (ERPs) at select electrodes showing an increased sustained positivity for emotional pictures in the time window between 400 and 1000 ms after stimulus onset. This positivity is widely distributed over the scalp, being expressed from frontal electrodes (especially the left ones), to the parietal electrodes.
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Figure 1: Encoding phase. (A) Design scores demonstrating a contrast between emotional pictures and neutral pictures and saliences at select electrodes. (B) Grand-averaged event-related potentials (ERPs) at select electrodes showing an increased sustained positivity for emotional pictures in the time window between 400 and 1000 ms after stimulus onset. This positivity is widely distributed over the scalp, being expressed from frontal electrodes (especially the left ones), to the parietal electrodes.

Mentions: The first PLS analysis (encoding phase) included ERPs elicited by unpleasant, neutral and pleasant pictures in the encoding phase. The analysis revealed one significant LV (p < 0.001), which accounted for 72.78% of the crossblock covariance and reflected a contrast between emotional pictures (both pleasant and unpleasant) and neutral pictures. It captured the effect of valence of the PM cue, which was expressed as a sustained positivity over parietal and centro-parietal electrodes and over left frontal electrodes in the time window roughly between 400 and 1000 ms post-stimulus (Figure 1).


Differential effects of emotional cues on components of prospective memory: an ERP study.

Cona G, Kliegel M, Bisiacchi PS - Front Hum Neurosci (2015)

Encoding phase. (A) Design scores demonstrating a contrast between emotional pictures and neutral pictures and saliences at select electrodes. (B) Grand-averaged event-related potentials (ERPs) at select electrodes showing an increased sustained positivity for emotional pictures in the time window between 400 and 1000 ms after stimulus onset. This positivity is widely distributed over the scalp, being expressed from frontal electrodes (especially the left ones), to the parietal electrodes.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4309118&req=5

Figure 1: Encoding phase. (A) Design scores demonstrating a contrast between emotional pictures and neutral pictures and saliences at select electrodes. (B) Grand-averaged event-related potentials (ERPs) at select electrodes showing an increased sustained positivity for emotional pictures in the time window between 400 and 1000 ms after stimulus onset. This positivity is widely distributed over the scalp, being expressed from frontal electrodes (especially the left ones), to the parietal electrodes.
Mentions: The first PLS analysis (encoding phase) included ERPs elicited by unpleasant, neutral and pleasant pictures in the encoding phase. The analysis revealed one significant LV (p < 0.001), which accounted for 72.78% of the crossblock covariance and reflected a contrast between emotional pictures (both pleasant and unpleasant) and neutral pictures. It captured the effect of valence of the PM cue, which was expressed as a sustained positivity over parietal and centro-parietal electrodes and over left frontal electrodes in the time window roughly between 400 and 1000 ms post-stimulus (Figure 1).

Bottom Line: So far, little is known about the neurocognitive mechanisms associated with emotion effects on prospective memory (PM) performance.ERP results suggest that emotional PM cues not only trigger an automatic, bottom-up, capture of attention, but also boost a greater allocation of top-down processes.Unpleasant pictures seemed to modulate especially the retrospective component, as revealed by the largest old/new effect being elicited by unpleasant PM pictures in the recognition task.

View Article: PubMed Central - PubMed

Affiliation: Department of General Psychology, University of Padua Padua, Italy.

ABSTRACT
So far, little is known about the neurocognitive mechanisms associated with emotion effects on prospective memory (PM) performance. Thus, this study aimed at disentangling possible mechanisms for the effects of emotional valence of PM cues on the distinct phases composing PM by investigating event-related potentials (ERPs). Participants were engaged in an ongoing N-back task while being required to perform a PM task. The emotional valence of both the ongoing pictures and the PM cues was manipulated (pleasant, neutral, unpleasant). ERPs were recorded during the PM phases, such as encoding, maintenance, and retrieval of the intention. A recognition task including PM cues and ongoing stimuli was also performed at the end of the sessions. ERP results suggest that emotional PM cues not only trigger an automatic, bottom-up, capture of attention, but also boost a greater allocation of top-down processes. These processes seem to be recruited to hold attention toward the emotional stimuli and to retrieve the intention from memory, likely because of the motivational significance of the emotional stimuli. Moreover, pleasant PM cues seemed to modulate especially the prospective component, as revealed by changes in the amplitude of the ERP correlates of strategic monitoring as a function of the relevance of the valence for the PM task. Unpleasant pictures seemed to modulate especially the retrospective component, as revealed by the largest old/new effect being elicited by unpleasant PM pictures in the recognition task.

No MeSH data available.