Assessment of differential attention mechanisms in seizure disorders and schizophrenia. 1997

P C Goldstein, and G Rosenbaum, and M J Taylor
Memorial Hospital, Hollywood, Florida, USA.

This study examines differential attention deficits in 19 temporal lobe epilepsy (TLE) patients, 15 generalized seizure patients (GSP), and 19 schizophrenic patients, compared to 20 normal controls. All participants were tested on a variable foreperiod reaction time (RT) task and continuous performance test (CPT). Temporal lobe epilepsy patients and schizophrenic patients show crossover deficits on the RT task requiring a conscious, effortful, preparatory motor set; while GSP show impairments on the CPT requiring vigilant, self-directed attention to external stimuli. The results suggest separate cortical and subcortical brain systems in the respective attentional deficits and in the etiologies of TLE, GSP, and schizophrenic disorders.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D004833 Epilepsy, Temporal Lobe A localization-related (focal) form of epilepsy characterized by recurrent seizures that arise from foci within the TEMPORAL LOBE, most commonly from its mesial aspect. A wide variety of psychic phenomena may be associated, including illusions, hallucinations, dyscognitive states, and affective experiences. The majority of complex partial seizures (see EPILEPSY, COMPLEX PARTIAL) originate from the temporal lobes. Temporal lobe seizures may be classified by etiology as cryptogenic, familial, or symptomatic. (From Adams et al., Principles of Neurology, 6th ed, p321). Epilepsy, Benign Psychomotor, Childhood,Benign Psychomotor Epilepsy, Childhood,Childhood Benign Psychomotor Epilepsy,Epilepsy, Lateral Temporal,Epilepsy, Uncinate,Epilepsies, Lateral Temporal,Epilepsies, Temporal Lobe,Epilepsies, Uncinate,Lateral Temporal Epilepsies,Lateral Temporal Epilepsy,Temporal Lobe Epilepsies,Temporal Lobe Epilepsy,Uncinate Epilepsies,Uncinate Epilepsy
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001288 Attention Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating. Focus of Attention,Selective Attention,Social Attention,Attention Focus,Attention, Selective,Attention, Social,Selective Attentions
D012565 Schizophrenic Psychology Study of mental processes and behavior of schizophrenics. Psychology, Schizophrenic

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