期刊
SCHIZOPHRENIA RESEARCH
卷 159, 期 2-3, 页码 450-457出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.schres.2014.09.009
关键词
Auditory Evoked Potentials; N40 wave; neonatal ventral hippocampus lesion; schizophrenia
类别
资金
- CONACYT [F1-153583, 138663]
- Catedra Marcos Moshinsky
- CONACyT Mexico
The neonatal ventral hippocampal lesion (NVHL) is an established neurodevelopmental rat model of schizophrenia. Rats with NVHL exhibit several behavioral, molecular and physiological abnormalities that are similar to those found in schizophrenics. Schizophrenia is a severe psychiatric illness characterized by profound disturbances of mental functions including neurophysiological deficits in brain information processing. These deficits can be assessed by auditory evoked potentials (AEPs), where schizophrenics exhibit abnormalities in amplitude, duration and latency of such AEPs. The aim of the present study was to compare the density of cells in the temporal cerebral cortex and the N40-AEP of adult NVHL rats versus adult sham rats. We found that rats with NVHL exhibit significant lower amplitude of the N40-AEP and a significant lower number of cells in bilateral regions of the temporal cerebral cortex compared to sham rats. Because the AEP recordings were obtained from anesthetized rats, we suggest that NVHL leads to inappropriate innervation in thalamic-cortical pathways in the adult rat, leading to altered function of cortical networks involved in processing of primary auditory information. (C) 2014 Elsevier B. V. All rights reserved.
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