Slowness and the preceding preparatory interval effect in schizophrenia.
Slowness and the preceding preparatory interval effect in schizophrenia.
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精神分裂症的缓慢和先前的准备间隔效应。
DOI:
10.1037//0021-843x.102.1.145
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发表时间:
1993
影响因子:
4.6
通讯作者:
Kwapil,TR
中科院分区:
文献类型:
--
作者:
Miller,MB;Chapman,LJ;Chapman,JP;Kwapil,TR
We measured the reaction times (RTs) of schizophrenic (n= 25), matched normal (n= 69), and bipolar (n= 14) subjects to a tone preceded by a preparatory interval (PI; the time between the warning signal and imperative stimulus) of varying length. RTs increase when the PI for the immediately preceding trial (the PPI) is longer than the PI for the current trial. Several studies have shown that this PPI effect (difference score) is heightened in schizophrenia. We replicated this finding. However, we found that the size of the PPI effect within groups increased with overall slowness and that the least squares regression line relating the PPI effect difference score to overall slowness did not differ between groups, nor did schizophrenic subjects' regression line differ from that of normal subjects. Group differences on the PPI effect were also analyzed by taking residuals for members of all groups from the normal subjects' regression line of the PPI effect difference score on overall slowness. Groups did not differ on these residuals, nor did schizophrenic subjects differ from normal subjects. We conclude that the heightening of the PPI effect in schizophrenia is like that observed in equally slow normal subjects. This finding suggests that the PPI effect does not appear to be a promising marker of a distinctive schizophrenic pathology.
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DOI:
10.1097/00005053-197111000-00010
发表时间:
1971
期刊:
The Journal of Nervous and Mental Disease
影响因子:
--
作者:
R. M. Nideffer;J. Neale;J. H. Kopfstein;R. L. Cromwell
通讯作者:
R. L. Cromwell
DOI:
10.1037//0003-066x.32.2.129
发表时间:
1977
期刊:
The American psychologist
影响因子:
--
作者:
D. Shakow
通讯作者:
D. Shakow
影响因子:
4.8
作者:
C. Kornetsky;M. H. Orzack
通讯作者:
M. H. Orzack
DOI:
10.1037/h0049269
发表时间:
1963
期刊:
Journal of abnormal and social psychology
影响因子:
--
作者:
T. Zahn;D. Rosenthal;D. Shakow
通讯作者:
D. Shakow
影响因子:
17.7
作者:
E. Rodnick;D. Shakow
通讯作者:
D. Shakow