Chris Westbury

TL;DR: The results show overlapping but partly distinct neural systems for processing concrete and abstract concepts, with greater involvement of bilateral association areas during concrete word processing, and processing of abstract concepts almost exclusively by the left hemisphere.

TL;DR: In this paper, the authors reviewed 107 blood flow activation studies carried out with positron emission tomography and published between January 1993 and November 1996 and concluded that task difficulty plays a major role in modulating blood flow response in the anterior cingulate cortex, possibly interacting with other parameters such as the nature of the response and memory demands.

TL;DR: The results show neural correlates of access to specific word information, with robust differences in activation by words and word-like nonwords, and the absence of facilitatory lexical neighborhood effects on activation in these brain regions argues for an interpretation in terms of semantic access.

TL;DR: The findings suggest that AP may not be associated with a unique pattern of cerebral activity but rather may depend on the recruitment of a specialized network involved in the retrieval and manipulation of verbal-tonal associations.

TL;DR: An operational definition for identifying the problematic posterior border of the PT on magnetic resonance imaging (MRI) scans is proposed and an asymmetry in area and volume was introduced by using an alternative method - the 'knife-cut' method - for identifies the posterior border.