Breitinger, Eva Maria ORCID: 0000-0003-3462-7242 (2024). Cortical processing of somatosensory information in people with blindness. PhD thesis, Universität zu Köln.
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Abstract
This dissertation focused on the investigation of somatosensory cortical processing in individuals with blindness. We compared event-related potentials (ERP) measured through electroencephalography (EEG) in individuals with and without blindness to gain insights into the neurophysiological correlates of behavioural group differences in a tactile task. Our primary interest lay in exploring the processes involved in the anticipation and maintenance of tactile information in modality-specific and supramodal brain regions. Two research articles have been published within the framework of this cumulative dissertation. The first article examines somatosensory memory processes focusing on contralateral delay activity (CDA), a slow cortical negativity developing during short term tactile memory maintenance. The second article investigates contingent negative variation (CNV) as the primary outcome measure, an ERP component that is considered a reflection of preparatory and anticipatory processes, which are also associated with internal model formation. The aims of this thesis were to gain a deeper understanding of somatosensory cortical processing in general and to explore the changes in its functioning following vision loss. Additionally, this investigation into post-perceptual cortical processes holds broader significance by providing insights into the intricate mechanisms of cortical sensory processing and neural plasticity.
Item Type: | Thesis (PhD thesis) | ||||||||
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URN: | urn:nbn:de:hbz:38-735448 | ||||||||
Date: | 2024 | ||||||||
Language: | English | ||||||||
Faculty: | Faculty of Human Sciences | ||||||||
Divisions: | Faculty of Human Sciences > Department Psychologie | ||||||||
Subjects: | Psychology | ||||||||
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Date of oral exam: | 20 June 2024 | ||||||||
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Refereed: | Yes | ||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/73544 |
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