FUNCTIONAL NEUROIMAGING OF REWARD AND TIMING PROCESSES IN ADOLESCENTS

这个子项目是利用资源的许多研究子项目之一。 由NIH/NCRR资助的中心拨款提供。对子项目的主要支持 子项目的首席调查员可能是由其他来源提供的， 包括美国国立卫生研究院的其他来源。为子项目列出的总成本可能 表示该子项目使用的中心基础设施的估计数量， 不是由NCRR赠款提供给次级项目或次级项目工作人员的直接资金。 我们正在调查认知和情绪对青少年内部间隔计时技能的影响的发展。间隔计时是指一个人的“时间感”，即能够判断已经过去了多少时间和/或能够在被询问时重现一个时间间隔。我们正在寻求确定青少年的计时过程是否与成年人相比是准确的，以及确定认知负荷和情绪价值的实验性操纵是否会在整个发展过程中与间隔计时技能产生不同的交互作用。我们还计划研究计时过程的神经关联。 这项研究将包括行为部分和神经成像部分。我们将使用基于计算机的认知任务以及功能磁共振成像(FMRI)。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. We are investigating the development of cognitive and emotional influence over internal interval timing skills in adolescents. Interval timing refers to a person's "sense of time", that is, being able to judge how much time has elapsed and/or being able to reproduce a time interval when asked. We are seeking to determine whether timing processes are accurate in adolescents as compared to adults, as well as to determine if experimental manipulations of cognitive load and emotional valence will differentially interact with interval timing skills across development. We also plan to investigate the neural correlates of timing processes. This study will have a behavioral component and a neuroimaging component. We will use computer-based cognitive tasks as well as funtional magnetic resonance imaging (fMRI).