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Holroyd, Clay B.; Baker, Travis E.; Kerns, Kimberly A.; Muller, Ulrich – Neuropsychologia, 2008
Behavioral and neurophysiological evidence suggest that attention-deficit hyperactivity disorder (ADHD) is characterized by the impact of abnormal reward prediction error signals carried by the midbrain dopamine system on frontal brain areas that implement cognitive control. To investigate this issue, we recorded the event-related brain potential…
Descriptors: Attention Deficit Hyperactivity Disorder, Brain Hemisphere Functions, Rewards, Prediction
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Sidiropoulos, Kyriakos; de Bleser, Ria; Ackermann, Hermann; Preilowski, Bruno – Neuropsychologia, 2008
At the level of clinical speech/language evaluation, the repetition type of conduction aphasia is characterized by repetition difficulties concomitant with reduced short-term memory capacities, in the presence of fluent spontaneous speech as well as unimpaired naming and reading abilities. It is still unsettled which dysfunctions of the…
Descriptors: Speech, Psycholinguistics, Phonemes, Aphasia