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Total sleep deprivation effects on the attentional blink

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Abstract

The Attentional Blink (AB) is a phenomenon that reflects difficulty in detecting or identifying the second of two successive targets (T1 and T2) that are presented in rapid succession, between 200-500ms apart. The AB involves indicators of attentional and temporal integration mechanisms related to the early stages of visual processing. The aim of this study was to identify the effects of 24-h of sleep deprivation (total sleep deprivation, TSD) on the attentional and temporal integration mechanisms of the AB. Twenty-two undergraduate students were recorded during five successive days, in these three conditions: baseline (two days), TSD (one day), and recovery (two days). Each day, at around 12:00 h, participants responded to a Rapid Serial Visual Presentation task (RSVP) that presented two targets separated by random intervals from 100 to 1000ms. The attentional mechanisms were assessed by the AB presence, the AB magnitude, and the AB interval, while the temporal integration mechanisms were evaluated by lag-1 sparing and order reversal responses. TSD negatively affected the attentional mechanisms, which is expressed by an overall reduction in performance, an extended AB interval, and a reduced AB magnitude. TSD also negatively affected the temporal integration mechanisms, manifested by an absence of lag-1 sparing and an increase in order reversals. These results suggest that people are still able to respond to two successive stimuli after 24 h without sleep. However, it becomes more difficult to respond to both stimuli because the attentional and temporal integration mechanisms of the AB are impaired.

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Data availability

The datasets analyzed during the current study are available from the corresponding author upon reasonable request.

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No funding was received for conducting this study.

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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by all authors. The first draft of the manuscript was written by Carlos Gallegos. The preliminary versions of the manuscript were commented on by all authors. The final manuscript was read and approved by all authors.

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Correspondence to Carlos Gallegos.

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Ethical approval

This study was approved by an academic committee at the University and was carried out in accordance with the principles of the Declaration of Helsinki.

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Each participant of the study signed an informed consent letter, and another signed letter was required from parents of minors.

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The authors declare that they have no conflict of interest.

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Communicated by Winston D Byblow

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Gallegos, C., Ramírez, C., García, A. et al. Total sleep deprivation effects on the attentional blink. Exp Brain Res (2024). https://doi.org/10.1007/s00221-024-06826-7

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  • DOI: https://doi.org/10.1007/s00221-024-06826-7

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