Sensorimotor gating and habituation of the startle reflex in schizophrenic patients treated with amisulpride or olanzapine compared to healthy controls

2004 ◽  
Vol 36 (05) ◽  
Author(s):  
BB Quednow ◽  
M Wagner ◽  
J Westheide ◽  
W Maier ◽  
KU Kühn
2006 ◽  
Vol 59 (6) ◽  
pp. 536-545 ◽  
Author(s):  
Boris B. Quednow ◽  
Michael Wagner ◽  
Jens Westheide ◽  
Katrin Beckmann ◽  
Niclaas Bliesener ◽  
...  

2014 ◽  
Vol 24 (6) ◽  
pp. 283-284
Author(s):  
Afke F. Terwisscha van Scheltinga ◽  
Steven C. Bakker ◽  
Neeltje E.M. van Haren ◽  
Heleen B.M. Boos ◽  
Hugo G. Schnack ◽  
...  

2014 ◽  
Vol 17 ◽  
Author(s):  
Tânia Silva ◽  
Luís Monteiro ◽  
Emanuela Lopes

AbstractAlthough several brief sensitive screening tools are available to detect executive dysfunction, few have been developed to quickly assess executive functioning. The INECO Frontal Screening (IFS) is a brief tool which has proved be useful for the assessment of the executive functions in patients with dementia. The aim of this study was to explore whether the IFS is as sensitive and specific as the BADS, a battery designed to assess the dysexecutive syndrome, in schizophrenia. Our sample comprised a group of 34 schizophrenic patients (Mean age = 39.59, DP = 10.697) and 31 healthy controls (Mean age = 35.52, DP = 10.211). To all groups were administered the BADS, Wisconsin Card Sorting Test and IFS. The results suggest that schizophrenic patients performed significantly worse than the control group in all tests (p < .05). The IFS total score was 13.29 for the experimental group and 26.21 for the control group (p < .001). Considering a cut-off of 14 points, the IFS sensitivity was 100% and specificity 56% in detection of executive dysfunction in schizophrenia, compared with the BADS, that if we consider a cut-off of 11 points, was a sensitivity of 100% and a specificity of 50%. Thus, IFS is a brief, sensitive and specific tool for the detection of executive dysfunction in schizophrenia.


2000 ◽  
Vol 41 (1) ◽  
pp. 283-284
Author(s):  
A. Rossi ◽  
P. Stratta ◽  
M. Grazia Marinangeli ◽  
E. Daneluzzo ◽  
M. Bustini ◽  
...  

1997 ◽  
Vol 171 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Taha Karaman ◽  
Sibel Özkaynak ◽  
Korkut Yaltkaya ◽  
Çetin Büyükberker

BackgroundSeveral reports have documented the presence of motor abnormalities in schizophrenic patients.MethodThirty schizophrenics and 28 healthy controls were included in the study. Scalp-recorded bereitschaftpotentials (BPs) generated prior to voluntary movements were recorded in all subjects.ResultsThe early (NSI) and late components of BP and peak negativity were reduced in all schizophrenic patients. In particular, the NSI was reduced in patients with positive symptoms, and the late component in patients with negative symptoms.ConclusionsThese findings provide further support for the involvement of frontal cortex, subcortical structures and their connections in schizophrenia, and highlight some differences between positive and negative symptom clusters.


1983 ◽  
Vol 142 (3) ◽  
pp. 288-291 ◽  
Author(s):  
W. F. Gattaz ◽  
H. Cramer ◽  
H. Beckmann

SummaryIncreasing evidence suggests that the concentrations of cyclic guanosine 3′5′-monophosphate (cGMP) in the cerebrospinal fluid (CSF) may reflect central cholinergic activity. When the concentrations of this nucleotide in the CSF from 28 schizophrenic patients (13 without and 15 with neuroleptic treatment) and 16 psychiatrically healthy controls was determined the schizophrenics showed significantly lower CSF levels of cGMP as compared to controls.As dopamine and homovanillic acid concentrations were not altered in these CSF samples, this finding of reduced cGMP suggests a cholinergic-dopaminergic imbalance in schizophrenia, with a reduction of the former and consequently a relative dominance of the latter.


2000 ◽  
Vol 47 (8) ◽  
pp. S37
Author(s):  
N.R. Swerdlow ◽  
T. Gerbranda ◽  
P. Hartman ◽  
A. Eastvold ◽  
K.M. Uyan ◽  
...  

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