Reading Faces and Facing Words
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Robotham, Julia Emma1, Forfatter
Starrfelt, Randi2, Vejleder
1Det Samfundsvidenskabelige Fakultet, Københavns Universitet, København, Danmark, diskurs:7001              
2Institut for Psykologi, Det Samfundsvidenskabelige Fakultet, Københavns Universitet, København, Danmark, diskurs:7012              
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Ukontrollerede emneord: Alexia, Prosopagnosia, Cognitive Neuropsychology, Modularity, Face perception, Reading, Visual perception
 Abstract: It has long been argued that face and word perception rely on highly specialised and more or less independent cognitive processes. Evidence from single case studies of patients with alexia and prosopagnosia has strongly contributed to this view. Most case studies carried out in cognitive neuropsychology select patients according to their primary symptoms and conduct an in-depth investigating of the function of interest. In the current study, we have taken the opposite approach and selected patients on the basis of anatomical criteria. We investigated how the visual perception of faces and words are affected by posterior stroke restricted to either the left or to the right hemisphere. Four patients were included in the study, and all patients were tested with sensitive tests of face and word perception. All patients showing deficits in the visual recognition of one of the two categories investigated, also showed deficits in the visual perception of the other category. One patient performed within the normal range on all tasks. Our results suggest that these abnormal performances do not represent general visual perceptual deficits but are specific to the visual categories investigated. These observations lead us to the conclusion that both hemispheres contribute to the visual perception of faces and words and that they might do so to different degrees. We argue that these cognitive neuropsychological findings are consistent with growing evidence that face and word recognition might be more associated than first thought. In the current study, we have shown that investigating a group of patients selected on the basis of anatomical criteria (lesion-localisation) rather than on the basis of symptom profiles can lead to novel findings.
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 Type: Speciale
Alternativ titel: Findings from a Patient Study applying a Novel Approach
Alternativ titel: Visuel perception af ord og ansigter: associerede funktioner
Alternativ titel: Fund fra et patientstudie, som anvender en ny tilgang
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Sprog: English - eng
 Datoer: 2013-02-25
 Sider: -
 Publiceringsinfo: København : Københavns Universitet
 Indholdsfortegnelse: Table of contents
1 Introduction.5
2 Cognitive neuropsychology 7
2.1 A branch of cognitive psychology7
2.2 A science: based on assumptions .8
2.3 Dissociations: a key tool.9
2.4 Single cases studies and their limitations.10
2.5 Cognitive Neuropsychology and Cognitive Neuroscience 12
3 Contributions of Cognitive Neuropsychology to our understanding of face
3.1 Prosopagnosia: Living without faces .15
3.2 Face perception: decomposed 16
3.3 Face perception mapped onto the brain17
3.4 New direction for CNP investigations of face perception18
4 Modularity and face perception.20
4.1 Modularity20
4.2 Modules in cognitive psychology and in neuropsychology .20
4.2.1 Roots20
4.2.2 Theoretical constructs of modularity 21
4.2.3 Modularity at the cognitive and neural level 23
4.3 Do we have a face perception module?23
4.3.1 A module at the cognitive level: are faces special? 24
4.3.2 A module at the level of neural representations25
5 A novel approach.29
6 References 30
 Note: The Master Thesis was written as a scientific article. An introductory text is included in order to provide authors with background information on the area of study.
 Type: Speciale
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