Key result
High neuroticism linked to increased P200 amplitude and latency during working memory tasks.
Why the study?
Neuroticism is associated with impaired attention, memory, and error detection, prompting investigation of visual N100 and P200 event-related potential components using a 2-back working memory task.
Is neuroticism associated with differences in visual N100 and P200 event-related potentials during a working memory task in healthy participants?
Observational (n=35)
Is neuroticism associated with differences in visual N100 and P200 event-related potentials during a working memory task in healthy participants?
Neuroticism is associated with alterations in the P200 event-related potential component during working memory tasks, suggesting differences in attentional processing despite preserved task performance.
Answers are grounded in this paper and cite their sources.
Should not yet change clinical assessment of neuroticism; leaves open whether P200 alterations predict cognitive outcomes.
Neuroticism is a personality trait associated with impaired attention, memory, and error detection. Thus, the present study investigated the visual N100 and P200 event-related potentials components associated with attention using a 2-back working memory task in healthy neurotic and nonneurotic participants, evaluated using the Neuroticism, Extraversion, Openness Five Factor Inventory. A total of 35 healthy participants were asked to perform the 2-back task while recording electroencephalographic activity from 64 electrodes on the scalp. Analysis of the N100 and P200 amplitude and latency in high neuroticism and low neuroticism subjects showed an increased P200 amplitude and latency for high neuroticism subjects in the frontal and parietal regions, respectively. However, there were no significant performance differences between the high and low neuroticism subjects for the 2-back working memory task. Therefore, the results suggest that neuroticism is associated with the P200 component elicited in the context of a working memory task.
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Xiu et al. (2021) conducted an observational in Healthy participants (high vs low neuroticism) (n=35). High neuroticism vs. Low neuroticism was evaluated on Visual N100 and P200 amplitude and latency during a 2-back working memory task. High neuroticism was associated with increased P200 amplitude and latency in the frontal and parietal regions during a working memory task compared to low neuroticism.
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