Eye movements as probes of lexico-semantic processing in a patient with primary progressive aphasia. Issue 1 (2nd January 2016)

• Record Type: Journal Article
• Authors: Seckin, Mustafa; Mesulam, M.-Marsel; Rademaker, Alfred W.; Voss, Joel L.; Weintraub, Sandra; Rogalski, Emily J.; Hurley, Robert S.
• Is Part Of: Neurocase. Volume 22:Issue 1(2016)
• Page Start: 65
• Page End: 75
• Publication Date: 2016-01-02
• Subjects: eye movements -- aphasia -- anterior temporal lobe -- single-word comprehension -- object naming; Neurology -- Periodicals; Neuropsychology -- Case Report; Mental Disorders -- Case Report; Nervous System Diseases -- Case Report; 616.8
• DOI: 10.1080/13554794.2015.1045523
• Languages: English
• ISSNs: 1355-4794

Abstract

Abstract : Eye movement trajectories during a verbally cued object search task were used as probes of lexico-semantic associations in an anomic patient with primary progressive aphasia. Visual search was normal on trials where the target object could be named but became lengthy and inefficient on trials where the object failed to be named. The abnormality was most profound if the noun denoting the object could not be recognized. Even trials where the name of the target object was recognized but not retrieved triggered abnormal eye movements, demonstrating that retrieval failures can have underlying associative components despite intact comprehension of the corresponding noun.