EVENT-RELATED POTENTIAL IN SCHIZOPHRENIA DURING VISUAL SEARCH

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目及 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 我们计划评估精神分裂症（SC）知觉系统内注意力运作的损伤。我们实验室目前的研究表明，SC患者的视觉搜索速度较慢，但尚不清楚这种缓慢是感知过程减慢还是注意力的特定损伤的结果。也就是说，如果患者感知系统只是需要更多的时间来确定给定的项目是目标还是非目标，那么它们的搜索速度就会减慢。为了评估视觉搜索过程中的注意力成分，本实验将使用ERP记录，重点关注称为<$N2pc <$（N2-posterior-contralateral）的注意力相关成分。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We plan to assess impairments in the operation of attention within perceptual systems in schizophrenia (SC). Current research in our lab suggests that patients with SC have slower visual search rates, but it is not clear whether this slowness is a consequence of slowed perceptual processes or specific impairments in attention. That is, if the patients¿ perceptual systems simply require more time to determine if a given item is a target or a nontarget, then their search rates will be slowed. To assess the attentional component of the visual search process, this experiment will use ERP recordings, focusing on an attention-related component called ¿N2pc¿ (for N2-posterior-contralateral).