Extrapersonal frames of reference for aimed movements are representationally convenient. They may, however, carry associated costs when the movement is executed in terms of the complex coordination of multiple joints they require. Studies that have measured both fingertip and joint paths suggest the motor systems may seek a compromise between simplicity of extrapersonal spatial representation and computational simplicity of multi-joint execution.
ASJC Scopus subject areas
- Neuropsychology and Physiological Psychology
- Language and Linguistics
- Linguistics and Language
- Behavioral Neuroscience