TY  - THES
T1  - Execution and perception of effector-specific movement deceptions
A1  - Helm,Fabian
Y1  - 2016/12/01
N2  - As a topic that touches on many aspects of movement execution and perception in sports, research on deception has attracted much attention during the last ten years. However, some important questions still remain unresolved—especially what are the kinematic characteristics of more effector-specific movement deceptions that influence an observer’s perceptual recognizability? It is still not known how spatiotemporal dissimilarities between movements and/or response time distributions influence this recognizability.
Three different studies were conducted to answer these questions. To embed the new findings into an applied context, a first study investigated the speed of internal processing in domain-specific and unspecific RT tasks. As well as examining speed, results also showed that motor expertise facilitated the processing of domain-specific responses. The second study examined the kinematic characteristics of effector- specific movement deceptions. This showed that expertise in performing those deceptions, as a potential kind of movement mimicry, depends mainly on keeping dissimilarities to non-deceptive movements small. A third, psychophysical study investigated the role of spatiotemporal dissimilarity and response time distribution in the perceptual recognizability of deceptive movements. Results demonstrated that recognizability increases as a function of dissimilarity; however, perceptual performance decreases in the case of early responses.
To sum up, the findings presented in this dissertation contribute to a deeper understanding of how the execution and perception of effector-specific movement deceptions are linked together. On the performer side, they demonstrate that experienced athletes are able to mimic non-deceptive movements while performing effector-specific deceptions. However, this attempt becomes a challenge the closer the execution of the movement phase is to the visibility of the action outcome. On the observer side, they show that the perceptual discriminability between movements increases as a function of spatiotemporal dissimilarity. However, observers more frequently tend to produce a prediction error when giving an early response, thus, indicating the efficiency of the performed effector-specific movement deceptions.
CY  - Gießen
PB  - Universitätsbibliothek
AD  - Otto-Behaghel-Str. 8, 35394 Gießen
UR  - http://geb.uni-giessen.de/geb/volltexte/2016/12370
ER  -