The effects of olanzapine,clozapine,risperidone and quetiapine treatment on P50 sensory gating in first-ep-isode schizophrenics / 中华行为医学与脑科学杂志
Chinese Journal of Behavioral Medicine and Brain Science
;
(12): 24-26, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-391371
ABSTRACT
Objective To compare the effects of atypical antipsyehoties treatment on PS0 sensory gating in first-episode schizophrenics. Methods The P50 auditory evoked potential was recorded by using conditioning-testing stimulus paradigm and stimulus train paradigm in 36 normal controls and 53 first-episode schizophrenics be-fore and after treatment,and compare the difference of P50 sensory gating after treatment. Results Before treat-ment, compared with control group, the atypical groups both had statistic difference of T-P50 amplitude ((1.01±0.88)μV, (0.68±0.64)μV, (0.58±0.47)μV), P50 suppression ((0.61±0.27), (0.54±0.22, (0. 59± 0.19)) in conditioning-testing stimulus paradigm and P50 amplitude,P50 suppression evoked by high frequency stimuli in stimulus train paradigm(P < 0.05), but no difference among the atypical groups (P > 0.05). After treat-ment,compared with control group, there was no statistic difference in olanzapine and elozapine groups of T-P50 amplitude and P50 suppression in conditioning-testing stimulus paradigm, but the difference in risperidone and que-tiapine groups still obviously(P<0.05). In stimulus train paradigm, there was no statistic difference of P50 ampli-tude, P50 suppression evoked by high frequency stimuli in every groups (P>0.05). Compared within atypical groups, the difference of P50 amplitude and P50 suppression were both obviously(P<0.05). Conclusion Each a-typical antipsychotic has different effect on P50 sensory gating;and the conditioning-testing stimulus paradigm and stimulus train paradigm P50 sensory gating may reflect different central neuron mechanism.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
Language:
Chinese
Journal:
Chinese Journal of Behavioral Medicine and Brain Science
Year:
2010
Type:
Article
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