TY  - JOUR
A1  - Herbort, Oliver
A1  - Krause, Lisa-Marie
A1  - Kunde, Wilfried
T1  - Perspective determines the production and interpretation of pointing gestures
JF  - Psychonomic Bulletin & Review
N2  - Pointing is a ubiquitous means of communication. Nevertheless, observers systematically misinterpret the location indicated by pointers. We examined whether these misunderstandings result from the typically different viewpoints of pointers and observers. Participants either pointed themselves or interpreted points while assuming the pointer’s or a typical observer perspective in a virtual reality environment. The perspective had a strong effect on the relationship between pointing gestures and referents, whereas the task had only a minor influence. This suggests that misunderstandings between pointers and observers primarily result from their typically different viewpoints.
KW  - pointing gestures
KW  - pointing production and interpretation
KW  - deictic reference
KW  - virtual reality
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-235293
SN  - 1069-9384
VL  - 28
ER  - 
TY  - JOUR
A1  - Kirsch, Wladimir
A1  - Kunde, Wilfried
A1  - Herbort, Oliver
T1  - Impact of proprioception on the perceived size and distance of external objects in a virtual action task
JF  - Psychonomic Bulletin & Review
N2  - Previous research has revealed changes in the perception of objects due to changes of object-oriented actions. In present study, we varied the arm and finger postures in the context of a virtual reaching and grasping task and tested whether this manipulation can simultaneously affect the perceived size and distance of external objects. Participants manually controlled visual cursors, aiming at reaching and enclosing a distant target object, and judged the size and distance of this object. We observed that a visual-proprioceptive discrepancy introduced during the reaching part of the action simultaneously affected the judgments of target distance and of target size (Experiment 1). A related variation applied to the grasping part of the action affected the judgments of size, but not of distance of the target (Experiment 2). These results indicate that perceptual effects observed in the context of actions can directly arise through sensory integration of multimodal redundant signals and indirectly through perceptual constancy mechanisms.
KW  - visual perception
KW  - motor control
KW  - object-oriented actions
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-273235
SN  - 1531-5320
VL  - 28
IS  - 4
ER  -