Jones, Steven H. and Hemsley,, D. and Ball,, S. and Serra, A. (1997) Disruption of the Kamin blocking effect in schizophrenia and in normal subjects following amphetamine. Behavioural Brain Research, 88 (1). pp. 103-114.Full text not available from this repository.
The Kamin blocking effect (KBE) is an established animal learning paradigm measuring selective processing, in which reduced blocking reflects allocation of greater processing resources to non-relevant information. Two KBE tasks are described below. Results from studies using the first (between-subjects) task indicate that KBE is abolished in acute schizophrenics with positive psychotic symptoms. It is also abolished in the relatives of schizophrenic subjects, although interpretation of this finding is hampered by poor performance of subjects in the control condition. The second (within-subjects) task indicated abolition of KBE in schizophrenic patients with positive psychotic symptoms. Administration of acute amphetamine to normal human subjects did not significantly disrupt performance on the first task. Whilst for the second task, although blocking was limited to placebo subjects, overall pre-exposure effects are not sufficiently strong to indicate specific drug effects.
|Journal or Publication Title:||Behavioural Brain Research|
|Uncontrolled Keywords:||Schizophrenia ; Associative learning ; Amphetamine ; Blocking ; Animal models|
|Subjects:||R Medicine > R Medicine (General)|
|Departments:||Faculty of Health and Medicine > Health Research|
|Deposited By:||Mrs Yaling Zhang|
|Deposited On:||26 Feb 2010 10:29|
|Last Modified:||26 Jul 2012 17:03|
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