TY  - JOUR
A1  - Kirsch, Wladimir
A1  - Kunde, Wilfried
T1  - Human perception of spatial frequency varies with stimulus orientation and location in the visual field
JF  - Scientific Reports
N2  - Neuroanatomical variations across the visual field of human observers go along with corresponding variations of the perceived coarseness of visual stimuli. Here we show that horizontal gratings are perceived as having lower spatial frequency than vertical gratings when occurring along the horizontal meridian of the visual field, whereas gratings occurring along the vertical meridian show the exact opposite effect. This finding indicates a new peculiarity of processes operating along the cardinal axes of the visual field.
KW  - neuroscience
KW  - psychology
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-357888
VL  - 13
ER  - 
TY  - JOUR
A1  - Kirsch, Wladimir
A1  - Kunde, Wilfried
T1  - Changes in body perception following virtual object manipulation are accompanied by changes of the internal reference scale
JF  - Scientific Reports
N2  - Changes in body perception often arise when observers are confronted with related yet discrepant multisensory signals. Some of these effects are interpreted as outcomes of sensory integration of various signals, whereas related biases are ascribed to learning-dependent recalibration of coding individual signals. The present study explored whether the same sensorimotor experience entails changes in body perception that are indicative of multisensory integration and those that indicate recalibration. Participants enclosed visual objects by a pair of visual cursors controlled by finger movements. Then either they judged their perceived finger posture (indicating multisensory integration) or they produced a certain finger posture (indicating recalibration). An experimental variation of the size of the visual object resulted in systematic and opposite biases of the perceived and produced finger distances. This pattern of results is consistent with the assumption that multisensory integration and recalibration had a common origin in the task we used.
KW  - human behaviour
KW  - perception
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-357876
VL  - 13
ER  -