Dopaminergic Modulation of Semantic Priming in Parkinson Disease
نویسندگان
چکیده
منابع مشابه
Dopaminergic Modulation of Medial Prefrontal Cortex Deactivation in Parkinson Depression
Parkinson's disease (PD) is associated with emotional abnormalities. Dopaminergic medications ameliorate Parkinsonian motor symptoms, but less is known regarding the impact of dopaminergic agents on affective processing, particularly in depressed PD (dPD) patients. The aim of this study was to examine the effects of dopaminergic pharmacotherapy on brain activation to emotional stimuli in depres...
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Depression is common in Parkinson's disease and is associated with cognitive impairment. Dopaminergic medications are effective in treating the motor symptoms of Parkinson's disease; however, little is known regarding the effects of dopaminergic pharmacotherapy on cognitive function in depressed Parkinson patients. This study examines the neuropsychological effects of dopaminergic pharmacothera...
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BACKGROUND Enhanced automatic spreading of activation in the semantic network has been suggested to underlie formal thought disorder in patients with schizophrenia, but it is not clear how this relates to the dopaminergic dysfunction implicated in the disorder. Previous studies on dopaminergic modulation of priming in healthy volunteers have focused on controlled rather than automatic processes...
متن کاملDopaminergic neuromodulation of semantic priming in a cortical network model.
Semantic priming between items stored and associated in memory underlies contextual recall. Response times to process a given target item are shorter when following presentation of a related prime item than when it is unrelated. The study of priming effects allows investigating the structure of semantic networks as a function of association strength and number of links relating the prime and ta...
متن کاملImpairment of semantic knowledge in Parkinson disease.
BACKGROUND Parkinson disease (PD) is commonly characterized by cognitive deterioration, but it is still unclear whether PD is associated with semantic impairments. OBJECTIVE To evaluate semantic knowledge of concepts in patients with idiopathic PD, addressing concrete and abstract concepts, conceptual attributes, and conceptual relations. METHODS Twelve patients with preserved cognitive sta...
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ژورنال
عنوان ژورنال: Cognitive and Behavioral Neurology
سال: 2008
ISSN: 1543-3633
DOI: 10.1097/wnn.0b013e318185e6f2