Rostro‐caudal organization of the human posterior superior temporal sulcus revealed by connectivity profiles

Abstract

The posterior superior temporal sulcus (pSTS) plays an important role in biological motion perception but is also thought to be essential for speech and facial processing. However, although there are many previous investigations of distinct functional modules within the pSTS, the functional organization of the pSTS in its full functional heterogeneity has not yet been established. Here we applied a connectivity‐based parcellation strategy to delineate the human pSTS subregions based on distinct anatomical connectivity profiles and divided it into rostral and caudal subregions using diffusion tensor imaging. Subsequent multimodal connection pattern analyses revealed distinct subregional connectivity profiles. From this we inferred that the two subregions are involved in distinct functional circuits, the language processing loop and the cognition attention network. These results indicate a convergent functional architecture of the pSTS that can be revealed based on different types of connectivity and is reflected in different functions and interactions. In addition, when the subregions were performing their processing in the different functional circuits, we found asymmetry in the bilateral pSTS. Our findings may improve the understanding of the functional organization of the pSTS and provide new insights into its interactions and integration of information at the subregional level.

Therapeutic Benefits of Short-Arm Human Centrifugation in Multiple Sclerosis–A New Approach

“…Thus, the findings in those two temporal regions may be an indication that artificial-gravity training may enhance motion accuracy through advanced motion perception and visual formation of the motor tasks. The temporal pole was also found by other researchers to be plastic to motor training and sport expertise (47). The last temporal region in which regional volumes of cortical and subcortical gray matter changed in response to the intervention applied in the present study was the transverse temporal gyrus, which has been associated with self-reported physical activity and brain age (48).…”

“…Other regions of the same lobe that exhibited spectral power changes were the bilateral fusiform gyri, areas malleable to motor function rehabilitation ( 46 ). Our findings also extended to the left banks of superior temporal sulcus, which is a relatively unexplored region known to be involved in biological motion perception ( 47 ). Thus, the findings in those two temporal regions may be an indication that artificial-gravity training may enhance motion accuracy through advanced motion perception and visual formation of the motor tasks.…”

Seeing minds, matter, and meaning: The CEEing model of pre-reflective subjective construal.

“…The dashed arrow represents a hypothesized pathway for which the data is equivocal. TPJ receives direct input from pSTS, which represents biological motion, via the middle longitudinal fasciculus (Burks et al, 2017; see also Cheng et al, 2018; Igelström et al, 2015; Igelström & Graziano, 2017; Makris et al, 2013). TPJ also receives direct input from LOTC, which represents objects, bodies, and faces in motion, from the posterior arcuate fasciculus (Bullock et al, 2019; Weiner & Zilles, 2016) and the horizontal portion of the superior longitudinal fasciculus (Martino et al, 2013).…”

Seeing Minds, Matter, and Meaning: The CEEing Model of Pre-Reflective Subjective Construal

“…Gestalt cortex anatomy can be simplified by considering the kind of coherence produced by different areas as shown in the right panel. (Burks et al, 2017; see also Cheng et al, 2018;Igelström, Webb, & Graziano, 2015;Igelström & Graziano, 2017;Makris et al, 2013). TPJ also receives direct input from LOTC, which represents objects, bodies, and faces in motion, from the posterior arcuate fasciculus (Bullock et al, 2019;Weiner & Zilles, 2016) and the horizontal portion of the superior longitudinal fasciculus (Martino et al, 2013).…”