Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"sensory gating"”.
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Monoamine Oxidase and Sensory Gating: Psychophysiological Vulnerabilities among Teenage Smokers
… with age from 14 to 18. The measures included sensory gating, platelet MAO-B activity, attention, memory, temperament, schizotypal personality, recognition of facial expressions, taste and smell. The initial set of analyses compared smokers and non-smokers, including those classified as high …
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Three types of sensory gating: exploring interrelationships, individual differences, and implications
… is selectively processed in the brain through sensory gating mechanisms. Filtering, habituation, and orienting are three types of sensory gating that have never been investigated together in the same study. Although it has been well established that sensory gating is abnormal in many clinical …
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Neurophysiological evaluation of sensory gating and selective attention in schizotypal personality
… that there is considerable evidence for both sensory gating and binaural selective attention abnormalities in schizophrenia, as reflected by event-related potentials (ERP), these attention and preattention mechanisms were investigated in students scoring in the top (n = 11) and bottom (n = 12) …
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P50 Sensory Gating: Impact of High Vs Low Schizotypy Personality and Smoking Status
Sensory gating helps prevent incoming irrelevant sensory information from entering into the higher cortex and ensures normal information processing. Sensory gating is seen as the ability of the nervous system to modulate its sensitivity to incoming stimuli (Braff & Geyer, 1990; Adler, Olincy, …
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An ERP Study to Investigate Age-Related Differences in Sensory Gating and Auditory Processing
Sensory gating is a mechanism that inhibits neurological responses to redundant information. Although studied within clinical populations, sensory gating has rarely been investigated with respect to aging. The present research investigated age-related changes in auditory sensory gating using …
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Sensory Gating Ability in Combat Veterans from Operation Enduring Freedom/Operation Iraqi Freedom With and Without PTSD
… person. A component of this process is sensory gating, or the ability to filter extraneous information in the environment and select what is important for subsequent processing. A common symptom of Posttraumatic Stress Disorder (PTSD) is sensory flooding, which is an overwhelming feeling …
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A Neurophysiological Investigation of Sensory Gating in Adults with Down Syndrome: Relationships with Age, Cognition, and Dementia
… AD in DS. As individuals age, declines in sensory function can profoundly impact cognitive abilities, particularly memory and attention. In typically developing (TD) individuals, the P50 event-related potential serves as a marker of amyloid-related neurophysiology. Contrary to patterns in …
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Attentional demands do affect amplitudes of N1 and N2 in the sensory gating paradigm in neurotypical adults and children
… was manipulated. In this study, two ERP sensory gating paradigms were used in which attention was manipulated by requiring participants either to focus their attention on the auditory stimuli (FA) or to watch a movie that distracted them from the auditory stimuli (SGM). To examine the …
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Neurophysiological Differences in Pain Reactivity: Why Some People are Tolerant to Pain
… of these differences. Because differences in sensory information processing may underlie variability in tolerance to pain and because measures of sensory gating are used to explore differences in sensory information processing, sensory gating among college students (N = 14) who are tolerant or …
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Tinnitus and Decreased Subcortical and Cortical Inhibition
… [cortical auditory evoked potential (CAEP) sensory gating ratios] may provide an objective index of whether reduced subcortical and/or cortical inhibition is associated with tinnitus perception in humans. The aims of this study were to assess whether ABR and/or CAEP indices of subcortical …
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Influence of Age on Auditory Gating
… and a 10 s interstimulus interval to assess sensory gating. Forty-two participants, ranging from 3-72 years of age were used to observe maturational changes in amplitude, latency, and suppression ratios of the P50 waveform. Previous research has shown that in normal adults the amplitude in …
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Synchronized Gamma Oscillations Underlying Mid-latency Auditory Evoked Potentials: Assessment of Effects of Psychopharmacologically Active Components of Tobacco
The effects of smoking cigarettes on sensory gating, P50 and stimulus-bound gamma band (32-48 Hz) oscillations were examined in two paradigms: paired-tone and oddball. During a paired-tone paradigm, our previous work (Crawford, McClain-Furmanski, Castagnoli, & Castagnoli, Neuroscience Letters …
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Event-related potential correlates of face-emotion processing impairments in bipolar disorder
… no significant difference between groups for sensory gating of the clicks, across P50, N100 and P200 auditory components measured at the vertex. Furthermore, N100 latency was overall delayed in BD. The third analysis revealed differential correlations between face processing and sensory gating …
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Single-cell transcriptomics of the mouse thalamic reticular nucleus
… molecular mechanisms through which TRN regulates sensory gating, and suggested targeted follow-up experiments to validate these findings.
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A neurological approach measuring attentional variations among children with high-functioning autism spectrum disorder, sensory processing difficulties and age-matched peers
… high functioning autism (HFA) and children with sensory processing difficulties (SPD) can have challenges processing auditory stimuli, which may contribute to difficulties with performance of everyday tasks. Few studies assess relationships between neurological measures with behavioral attention …
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Mild Traumatic Brain Injuries and Their Implications on Changes in Event Related Potentials: A look into Visual Gating (P50)
… event related potentials (ERPs) associated with sensory gating and how this cognitive property is affected in those who have a self-reported concussion. Here we show that a visual attention and gating mechanism exists in both populations (control and concussed) as seen by the P50 ERP after the …
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Neuronal Nicotinic Receptor Dynamics in Medial Geniculate Body Neurons of Young and Aged Fischer Brown Norway Rats
… which direct attention to relevant incoming sensory information. The primary cholinergic input to the MGB is a large cholinergic projection from the pontomesencephalic tegmentum. The PMT is a brainstem structure composed of the pedunculopontine nucleus and laterodorsal tegmental nuclei. These …
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Investigating psychosis in Prader-Willi syndrome: developing cognitive, electrophysiological and neuroimaging approaches
… module comprised the Global-Local paradigm, a sensory gating paradigm, and resting state. The MRS module measured metabolites in the anterior cingulate cortex, the auditory and visual cortex. The cognitive module contained measures of IQ, processing speed and working memory. The behavioural …
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Influence of a Nicotinic Treatment on Auditory Sensory Processing in Schizophrenia
… to widespread psychosocial, cognitive and sensory processing dysfunctions, which are generally experienced before the onset of the first psychotic episode. At the sensory level, early auditory information processing deficits, characterized at the neural level with event-related potentials …