title: Location memory biases reveal the challenges of coordinating visual and kinesthetic reference frames.
abstract: Five experiments explored the influence of visual and kinesthetic/proprioceptive reference frames on location memory. Experiments 1 and 2 compared visual and kinesthetic reference frames in a memory task using visually-specified locations and a visually-guided response. When the environment was visible, results replicated previous findings of biases away from the midline symmetry axis of the task space, with stability for targets aligned with this axis. When the environment was not visible, results showed some evidence of bias away from a kinesthetically-specified midline (trunk anterior-posterior [a-p] axis), but there was little evidence of stability when targets were aligned with body midline. This lack of stability may reflect the challenges of coordinating visual and kinesthetic information in the absence of an environmental reference frame. Thus, Experiments 3-5 examined kinesthetic guidance of hand movement to kinesthetically-defined targets. Performance in these experiments was generally accurate with no evidence of consistent biases away from the trunk a-p axis. We discuss these results in the context of the challenges of coordinating reference frames within versus between multiple sensori-motor systems.
authors: Department of Psychology, University of Iowa, Iowa City, IA 52242, USA. vanessa-simmering@uiowa.edu
authors: Vanessa R
authors: VR
authors: Simmering
authors: Clayton
authors: C
authors: Peterson
authors: Warren
authors: W
authors: Darling
authors: John P
authors: JP
authors: Spencer
mesh_terms: D000293:Adolescent; D000328:Adult; D002490:Central Nervous System / Q000502:physiology; D005260:Female; D006801:Humans; D007699:Kinesthesis / Q000502:physiology*; D008297:Male; D008568:Memory / Q000502:physiology*; D009483:Neuropsychological Tests; D015588:Observer Variation; D009949:Orientation / Q000502:physiology*; D010775:Photic Stimulation; D011434:Proprioception / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*
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