Dissociation of facilitatory and inhibitory auditory attention mechanisms after lateral prefrontal lesions in humans
نویسندگان
چکیده
منابع مشابه
Impaired Facilitatory Mechanisms of Auditory Attention After Damage of the Lateral Prefrontal Cortex.
There is growing evidence that auditory selective attention operates via distinct facilitatory and inhibitory mechanisms enabling selective enhancement and suppression of sound processing, respectively. The lateral prefrontal cortex (LPFC) plays a crucial role in the top-down control of selective attention. However, whether the LPFC controls facilitatory, inhibitory, or both attentional mechani...
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Some of the most striking symptoms after prefrontal damage are reduction of behavioral initiation and inability to suppress automatic behaviors. However, the relation between these 2 symptoms and the location of the lesions that cause them are not well understood. This study investigates the cerebral correlates of initiation and suppression abilities assessed by the Hayling Sentence Completion ...
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This chapter reviews the main data on the physiological substrates of auditory selective attention and their contribution to theoretical models of cognitive psychology. While event-related potentials, magnetoencephalography, and more recently neuroimaging techniques have provided fundamental information on the neural correlates of attention in the central cortical system, measurements of the fr...
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The prefrontal cortex (PFC) plays a central role in preparatory and anticipatory attentional processes. To investigate whether subregions of the PFC play differential roles in these processes we investigated the effect of focal lesions to either lateral prefrontal (lateral PFC; n=11) or orbitofrontal cortex (OFC; n=13) on the contingent negative variation (CNV), an electrophysiological index of...
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Separate groups of normal monkeys were trained either in Pavlovian differentiation or in positional responses, and with either auditory frequency or auditory location cues. After reaching criterion, half the animals in each group were given a dorsal prefrontal lesion and the other half, a ventral prefrontal lesion. The dorsal removal produced a strong impairment on the positional response tasks...
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ژورنال
عنوان ژورنال: Frontiers in Human Neuroscience
سال: 2011
ISSN: 1662-5161
DOI: 10.3389/conf.fnhum.2011.207.00330