Pre-stimulus oscillations determine conscious access in the attentional blink task
نویسندگان
چکیده
منابع مشابه
Neural correlates of conscious perception in the attentional blink.
If attending to a target in a rapid stream of visual stimuli within the next 400 ms or so, a second target in the stream is frequently not detected by an observer. This so-called attentional blink can provide a comparison of neural signals elicited by identical stimuli that, in one condition, reach conscious awareness and, in the other, fail to be selected for awareness. In the present study, u...
متن کاملConscious access is linked to ongoing brain state: electrophysiological evidence from the attentional blink.
Neuroscience explanations of conscious access focus on neural events elicited by stimuli. In contrast, here, we used the attentional blink paradigm in combination with event-related brain potentials to examine whether the ongoing state of the brain before a stimulus can determine both conscious access and the poststimulus neural events associated with consciousness. Participants were required t...
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The effects of the sensory modality of the lead stimulus and of task difficulty on attentional modulation of the electrical and acoustic blink reflex were examined. Participants performed a discrimination and counting task with either two acoustic, two visual, or two tactile lead stimuli. In Experiment 1, facilitation of the electrically elicited blink was greater during task-relevant than duri...
متن کاملTemporal dynamics of access to consciousness in the attentional blink
Presentation of two targets in close temporal succession often results in an impairment of conscious perception for the second stimulus. Previous studies have identified several electrophysiological correlates for this so-called 'attentional blink'. Components of the event-related potential (ERP) such as the N2 and the P3, but also oscillatory brain signals have been shown to distinguish betwee...
متن کاملVisual Masking and Task Switching in the Attentional Blink
When two targets are presented in rapid succession, identification of the first target is nearly perfect, but identification of the second target is impaired when it follows the first by less than about 500 ms. In the present chapter, we examine the role of two factors – visual masking and attentional switching – in producing this second-target deficit, commonly known as the attentional blink (...
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ژورنال
عنوان ژورنال: Frontiers in Human Neuroscience
سال: 2015
ISSN: 1662-5161
DOI: 10.3389/conf.fnhum.2015.217.00091