| Summary: | 博士 === 國立臺灣師範大學 === 體育學系 === 105 === When individuals wear the devices, how do they perceive the relationship between their action and environment? We can investigate such questions based on the direct perception perspective of ecological psychology. Individuals can act to perceive more information from the environment, and get the information about the possibility of their action as well. The main concern of this study is to test whether the weight of the sticks that are attached to different parts of the arm affects the standing reach height. In order to increase the rate of correct judgement, participants are offered by different opportunities for exploration (dynamic touch, visual information after dynamic touch, and dynamic touch with visual information). In experiment 1, we recruited 24 adults as our participants, and they were assigned to two groups randomly. The participants of the first group had to attach heavy sticks prior to light sticks, and they were attached light sticks prior to heavy sticks in the second group. In each group, participants had to attach different sticks to their upper arms, front arms, and the back of their palms. There were 4 trials in each condition, and 24 trials totally. There were 36 participants recruited for the second experiment. They were assigned to three practice groups randomly. The first one was a dynamic touch learning group, the second one was visual perception after dynamic touch learning group, and the last one was a dynamic touch with visual perception learning group. After practicing, they were assigned to judge the stand-reaching height with different sticks attached to upper arms, front arms, and back palms. The maximum stand-reaching height perception was measured when objects were attached to different parts of arms by two 2 (heavy stick first vs. light stick first) 3 (shoulder, elbow, and wrist) 2 (heavy stick vs. light stick) mixed-design three-way ANOVAs to check the relationship between sticks’ weight order and the parts of the arms. In order to check the effects of practice, we testified the results by two 3 (dynamic touch, dynamic touch then visual, and dynamic touch plus visual) 2 (heavy sticks vs. light sticks) 3 (shoulder, elbow, and wrist) mixed-design three-way ANOVAs. The findings of experiment 1 showed that individuals’ perception of maximum reaching height didn’t be influenced by the order of sticks. When the sticks were attached to the wrist, participants had the maximum perception of stand-reaching height, and when heavy sticks were attached, participants have a heigher perception of stand-reaching height then light sticks. The position of attached sticks didn’t affect the perception of maximum stand-reaching height when being asked to hold a stick, but the weight of the sticks does. In experiment 2, perceptual learning from different perceptual modalities didn’t affect the maximum stand-reaching height when sticks were attached. When the sticks were attached to the wrist, individuals had the maxmium perception of stand-reaching height, and they had a higher perception of stand-reaching height when heavier sticks were attached. Learning with visual perception can cause more correct perception when the sticks were attached and asked to hold.
|
|---|
