Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.neuroimage.2011.06.093
Title: Different types of target probability have different prefrontal consequences
Authors: Hon, N. 
Ong, J.
Tan, R.
Yang, T.H.
Keywords: DLPFC
fMRI
Target probability
VLPFC
Issue Date: 2-Jan-2012
Source: Hon, N., Ong, J., Tan, R., Yang, T.H. (2012-01-02). Different types of target probability have different prefrontal consequences. NeuroImage 59 (1) : 655-662. ScholarBank@NUS Repository. https://doi.org/10.1016/j.neuroimage.2011.06.093
Abstract: One of the factors known to affect target detection is target probability. It is clear, though, that target probability can be manipulated in different ways. Here, in order to more accurately characterize the effects of target probability on frontal engagement, we examined the effects of two commonly-used but different target probability manipulations on neural activity. We found that manipulations that affected global stimulus class probability had a pronounced effect on ventrolateral prefrontal cortex and the insula, an effect which was absent with manipulations that only affected the likelihood of specific target stimuli occurring. This latter manipulation only modulated activity in dorsolateral prefrontal cortex and the precentral sulcus. Our data suggest two key points. First, different types of target probability have different neural consequences, and may therefore be very different in nature. Second, the data indicate that ventral and dorsal portions of prefrontal cortex respond to different types of task-relevant information. © 2011 Elsevier Inc.
Source Title: NeuroImage
URI: http://scholarbank.nus.edu.sg/handle/10635/49887
ISSN: 10538119
DOI: 10.1016/j.neuroimage.2011.06.093
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