Functional Organization of Social Perception and Cognition in the Superior Temporal Sulcus
The superior temporal sulcus (STS) is considered a hub for social perception and cognition, including the perception of faces and human motion, as well as understanding others' actions, mental states, and language. However, the functional organization of the STS remains debated: Is this broad region composed of multiple functionally distinct modules, each specialized for a different process, or are STS subregions multifunctional, contributing to multiple processes? Is the STS spatially organized, and if so, what are the dominant features of this organization? We address these questions by measuring STS responses to a range of social and linguistic stimuli in the same set of human participants, using fMRI. We find a number of STS subregions that respond selectively to certain types of social input, organized along a posterior-to-anterior axis. We also identify regions of overlapping response to multiple contrasts, including regions responsive to both language and theory of mind, faces and voices, and faces and biological motion. Thus, the human STS contains both relatively domain-specific areas, and regions that respond to multiple types of social information.
The Psychology of Being " Right " : The Problem of Accuracy in Social Perception and Cognition
Several difficulties are noted with general questions psychologists have been asking about human accuracy, such as whether people are typically accurate or inaccurate, what the boundary conditions for accuracy are, or the general process whereby accuracy may be improved. Instead, a situationally specific approach to accuracy is adopted in which a central role is assigned to the judgmental process. Accordingly, two general paradigms are distinguished addressing accuracy from realistic and phenomenal perspectives. The realist paradigm focuses on subjects' judgments and the degree to which these correspond to an external criterion. The phenomenal paradigm focuses on subjects' internal criterion as well as their perceptions of the target judgment and the judgment-to-criterion correspondence. Research possibilities in each paradigm are noted. It is suggested that attention to judgmental factors may extend accuracy work in previously unexplored directions.
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