1. Testing the modulation of self-related automatic and others-related controlled processing by chronotype and time-of-day.
- Author
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Palmero, Lucía B., Martínez-Pérez, Víctor, Tortajada, Miriam, Campoy, Guillermo, and Fuentes, Luis J.
- Subjects
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CHRONOTYPE , *CIRCADIAN rhythms , *PREFRONTAL cortex , *BRAIN anatomy - Abstract
• Self-automatic processing is modulated by chronotype and time-of-day only in Evening-type participants. • There is a lack of modulation of others-controlled processing by chronotype and time-of-day. • Morning-types demonstrated greater flexibility and adaptability to non-optimal times-of-day. • Our results link the Self-Attention Network (SAN) more closely to the VMPFC than to the DLPFC. We assessed whether self-related automatic and others-related controlled processes are modulated by chronotype and time-of-day. Here, a shape-label matching task composed of three geometrical shapes arbitrarily associated with you , friend , and stranger was used. Twenty Morning-types, and twenty Evening-types performed the task at the optimal and non-optimal times of day (i.e., 8 AM, or 8:30 PM). Morning-types did not exhibit noticeable synchrony effects, thus proving the better adaptation of these participants to non-optimal moments of the day as compared to Evening-types. Contrary to our predictions regarding the absence of automatic-processing modulation and the presence of controlled-processing influences by time-of-day, we found an influence on self-related but not others-related processing only in Evening-type participants. Although brain structures are not directly tackled, we argue that such modulation may be due to the dependence of the activation of the ventromedial prefrontal cortex (VMPFC), an essential component of the self-attention network on circadian rhythms. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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