Kerry, Sheila

Lambon Ralph, Matthew A.

Leff, Alex P.

Rice, Grace E.

Robotham, Ro Julia

Starrfelt, Randi

English

Copenhagen University Research Information System

u n i ve r s i t y  o f  co pe n h ag e n  Patterns of perceptual performance in posterior cerebral artery stroke: Results fromthe Back of the Brain-project.Starrfelt, Randi; Rice, Grace E.; Robotham, Ro Julia; Kerry, Sheila; Lambon Ralph, MatthewA.; Leff, Alex P.Publication date:2020Citation for published version (APA):Starrfelt, R., Rice, G. E., Robotham, R. J., Kerry, S., Lambon Ralph, M. A., & Leff, A. P. (2020). Patterns ofperceptual performance in posterior cerebral artery stroke: Results from the Back of the Brain-project.. Postersession presented at European Workshop on Cognitive Neuropsychology, Bressanone, Italy.Download date: 14. May. 2020Patterns of perceptual performance following posterior cerebral artery stroke: Results from the Back-of-the-Brain (BoB) projectSay hello to BoBIn the Back-of-the-Brain (BoB) project, we recruited patients based on lesionlocation rather than symptomatology, to assess the range and specificity ofperceptual deficits following posterior cerebral artery (PCA) stroke, withparticular focus on faces and words. In a case series design, we evaluate bothgroup performance (by lesion laterality) and individual case performance onspecific tests and composite scores for face, object, and word recognition.Randi Starrfelt, Grace E. Rice, Ro J. Robotham, Sheila Kerry, Matthew A. Lambon Ralph,. Alex P. Leff1Department of Psychology, University of Copenhagen  2 MRC Cognition and Brain Sciences Unit, University of Cambridge 3 Institute of Cognitive Neuroscience, University College LondonUNIVERSITY OF COPENHAGEN DEPARTMENT OF PSYCHOLOGYFACES OBJECTS WORDSDelayedMatching ACC DelayedMatching ACC DelayedMatching ACCDelayedMatching RT DelayedMatching RT DelayedMatching RTSurpriseRecognition ACC SurpriseRecognition ACC SurpriseRecognition ACCSurpriseRecognition RT SurpriseRecognition RT SurpriseRecognition RTFace Familiarity ACC Object Decision ACC Lexical Decision ACCFaceFam Famous RT ObjectDec RealObjects RT LexicalDec Word RTFace Naming Named ACC Picture Naming ACC WordReading ACCFace Naming Recog ACC Picture Naming RT WordReading 3L RTComparable tests across domainsComposite scores (PCA on comparable tests)123-Perception & imagery-15L R Bilat TotalNo Deficits 12 8 1 21WOF 10 6 6 22W only 3 3 0 6O only 0 0 0 0F only 0 0 1? 1?WF 2 1 0 3WO 5 4 0 9FO 0 1 1 21) Are there clear differences in distribution of scores on main tests      of face and word recognition between patients with left and right hemisphere stroke?Yes, but mostly for reading: More left than right hemisphere patients show severe reading deficits. Face deficits are more similar across groups.2) Are there patients with selective (significantly dissociated) deficits?Yes, but only in reading. Contrary to expectation, this may be observed following both left and right unilateral stroke. This may reflect different types of alexia or premorbid reading skills.Distribution of individual scores - examplesRandi.Starrfelt@psy.ku.dkReading out loudCambridge Face Memory TestPatterns of deficits (Crawford analysis)ConclusionsAccuracyWord length effect (ms/l)RT

Patterns of perceptual performance in posterior cerebral artery stroke: Results from the Back of the Brain-project.

https://curis.ku.dk/ws/files/235352990/2_Poster_Bressanone.pdf

Patterns of perceptual performance in posterior cerebral artery stroke: Results from the Back of the Brain-project.

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