Topic
Attentional blink
About: Attentional blink is a research topic. Over the lifetime, 1346 publications have been published within this topic receiving 53064 citations. The topic is also known as: Attentional blinks.
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TL;DR: The results show that alexithymia interacted with arousal (cycling vs. baseline) and type T2, so that arousal was beneficial to detect T2 only for low-alexithymIA scorers.
Abstract: Alexithymia is a multifaceted personality construct that encompasses difficulties in identifying and describing feelings along with an externally oriented cognitive style. The influence of alexithymia and arousal on the cognitive processing of emotion is now widely demonstrated. To test the joint influence of alexithymia and arousal on attentional processes, 55 participants completed 2 blocks of attentional blink trials, one after a baseline (relaxed) session and the other after a cycling (aroused) session. The attentional blink task consists in presenting a neutral first to-be-detected target and second targets (T2) that were neutral (e.g., echo), low-arousal (i.e., emptiness), or high-arousal (e.g., murder) words and presented 213 ms after the first target. The results show that alexithymia interacted with arousal (cycling vs. baseline) and type T2, so that arousal was beneficial to detect T2 only for low-alexithymia scorers. The findings are discussed within the framework showing a decoupling between physiological arousal and subjective experience in high-alexithymia scorers. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
2 citations
TL;DR: The view that the AB limits the entry of information into consciousness via a late-stage modal bottleneck is supported, and an ongoing compensatory response at early latencies is suggested.
Abstract: The Attentional Blink (AB) usually refers to the impaired report of a second target (T2) if it appears within 200-500 ms after a first target within a rapid sequence of distractors. The present study focused on a less studied AB variant known as the unmasked AB, where T2 is the last item of the sequence and T2 report is unaffected. This aspect of the unmasked AB holds promise for an experimental paradigm in which measures of on-going event-related processing are unconfounded by differences in late-stage processing. To fully characterize the unmasked AB paradigm, we used a randomization statistics approach to comprehensively examine the electroencephalographic signature of the unmasked AB. We examined the unmasked AB with auditory and visual T2s-participants attended to either the auditory or visual information within a sequence of paired auditory-visual stimuli, and reported targets within the attended modality stream while ignoring the other. As predicted, T2 report was unaffected by the unmasked AB. The visual AB was associated with delayed but intact N2 and P3 components, and a suppressed N1. We suggest that this N1 is linked to auditory processing of the distractor stream, and reflects the cognitive system prioritizing the processing of visual targets over auditory distractors in response to AB-related processing load. The auditory AB only indicated a delayed but intact P3. Collectively, these findings support the view that the AB limits the entry of information into consciousness via a late-stage modal bottleneck, and suggest an ongoing compensatory response at early latencies.
2 citations
TL;DR: In an attentional blink paradigm, perceptual performance varied with the rhythms at these two frequencies, which are named attentional rhythmic blink and are proposed to depend on the power balance between ongoing neural oscillations, determined by the task-specific demand.
Abstract: Brain oscillations in the theta (3–7 Hz) and alpha (7–13 Hz) bands are implicated in visual perception and attention. We show that in an attentional blink paradigm, where the task requires detecting two targets presented in rapid succession, perceptual performance varied with the rhythms at these two frequencies, which we name attentional rhythmic blink. In the absence of distractors, second target detection performance fluctuated at the theta rhythm, but the fluctuation frequency shifted toward alpha rhythm when distractors were interspersed with the targets. We further show, in magnetoencephalography experiments, that a change in the dominant frequency of ongoing neural oscillations accompanied those in perceptual performance, with the parietal theta being more pronounced in the no-distractor and the occipital alpha in the distractor conditions, respectively. We propose that perceptual rhythms may depend on the power balance between ongoing neural oscillations, determined by the task-specific demand.
2 citations
TL;DR: In this article , it was shown that the duration of the attentional blink shrinks with development, suggesting that a fundamental aspect of cognitive development is the fast acceleration of the late processing stage of perception.
2 citations
TL;DR: It now appears that the evi-dence assembled supports a more flexible model in which there is parallel processing, at least of low-level features of stimuli, but that higher level processing has capacity limitations (depending on the complexity of the task to be performed and the number of inputs to be processed).
2 citations