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Effects of attentional focus on spatial localization of distal body parts and touch in two-arm position matching.
Exp Brain Res
December 2024
Department of Neuromuscular Physiotherapy, Poznan University of Physical Education, Królowej Jadwigi 27/39, Poznan, 61-871, Poland.
This study investigated how the judgment of proximal joint position can be affected by touch alone, focused attention on the distal body part, or touch spatial localization. Participants completed a two-arm elbow joint position-matching task, in which they indicated the location of one forearm by the placement of the other. In four test conditions, matching was performed during (1) detection of touch (tactile stimulation of index finger pads), (2) spatial localization of fingers (attention focused on the position of index finger pads), (3) spatial localization of touch on fingers (attention focused on tactile stimulation of index finger pads), and (4) detection of touch but localization of fingers (tactile stimulation of index finger pads, but attention focusing on the spatial position of the pads).
View Article and Find Full Text PDFI am where I believe my body is: The interplay between body spatial prediction and body ownership.
PLoS One
December 2024
Department of Psychology, University of Milan-Bicocca, Milan, Italy.
Body ownership refers to the feeling that the body belongs to oneself. This study explores how our ability to predict our body's location in space influences feelings of ownership and disownership towards it, comparing two illusion techniques: the virtual Rubber Hand Illusion (vRHI) and the first-person perspective Full-Body Illusion (1pp-FBI). Participants were exposed to each illusion, where they observed a virtual body aligned or misaligned with their own.
View Article and Find Full Text PDFInteractions between the fovea and the periphery shape misbinding of visual features in a continuous report paradigm.
Sci Rep
November 2024
Cognitive Neuroscience Laboratory, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany.
Human object perception depends on the proper integration of multiple visual features, such as color and motion. When features are integrated incorrectly, they are perceptually misbound and can cause illusions. This study investigates the phenomenon of continuous misbinding of color and motion features in peripheral vision, addressing the role of spatial continuity and color configuration in binding processes.
View Article and Find Full Text PDFIllusions exist in everyday life with natural stimuli: The banana-bisection Illusion.
Perception
November 2024
Psychology, Winston-Salem State University, Winston-Salem, North Carolina, USA.
We report a novel visual illusion that is present in the natural environment. In attempting to cut a banana in half, many people make the side adjacent to the stem shorter, because they see it as longer than it is. This study tested the presence of the banana bisection illusion with outline drawings and a 3D realistic-looking plastic banana.
View Article and Find Full Text PDFAssessing individual sensitivity to the Thermal Grill Illusion: A two-dimensional adaptive psychophysical approach.
J Pain
November 2024
Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Denmark; Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Denmark. Electronic address:
In the Thermal Grill Illusion (TGI), the spatial alternation of non-noxious warm and cool temperatures elicits burning sensations that resemble the presence of noxious stimuli. Previous research has largely relied on the use of specific temperature values (i.e.
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