The temporal parameters of visual-proprioceptive intermodal integration in infants and adults

婴儿和成人视觉-本体感觉联运整合的时间参数

• 批准号: 37368-2010
• 负责人: Moore, Christopher
• 金额: $ 2.49万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=474771
• 关键词: temporal; parameters; visual; proprioceptive; intermodal

Proprioception, or the internal sense of the position and movement of body parts, is to a large extent the forgotten sense. Yet, it is as important for the organization of goal-directed action as the other, externally oriented senses, such as vision and audition. In this research program proposed here, we intend to study proprioception in both infants and adults by examining the temporal window over which proprioceptive awareness occurs. Using a video delay device, we present visual feedback of hidden body movements. We can then investigate the degree of delay that is required before participants recognize that there is a delay and also the degree of delay over which participants can still detect a correspondence between the internal feeling of movement and the visual feedback of that movement. In this way, we can assess proprioception by studying the integration of proprioception and vision in perception and in short term memory. With infants as young as 6 months of age, we will use an intermodal visual preference procedure whereby infants are shown video of their own hidden leg movements. We will record the infants' looking time to video that is live versus delayed. We will also compare relative looking time to video that is delayed by different amounts of time. With adults, we will also present video of hidden movements (in this case arm movements). To study adults' ability to perceive the correspondence between visual and proprioceptive stimulation, we will request judgements of whether the video is live or delayed. With adults, we will also manipulate the type of movements they perform. To study adults' proprioceptive short-term memory, we will present video delayed by different amounts of time and request judgements of whether the video is a playback of their own movements or a recording of another actor. This program of research will be the first comprehensive examination, focusing on the temporal characteristics, of both adults' and infants' perception and short-term memory of proprioceptive information.

本体感觉，或者说身体部位的位置和运动的内部感觉，在很大程度上是被遗忘的感觉。 然而，对于组织目标导向的行动来说，它与其他外部导向的感官（例如视觉和听觉）一样重要。 在此提出的这项研究计划中，我们打算通过检查本体感觉意识发生的时间窗口来研究婴儿和成人的本体感觉。 使用视频延迟设备，我们呈现隐藏的身体动作的视觉反馈。 然后，我们可以研究参与者意识到存在延迟之前所需的延迟程度，以及参与者仍然可以检测到运动的内部感觉与该运动的视觉反馈之间的对应关系的延迟程度。 这样，我们可以通过研究感知和短期记忆中本体感觉和视觉的整合来评估本体感觉。 对于 6 个月大的婴儿，我们将使用联运视觉偏好程序，向婴儿展示他们自己隐藏的腿部运动的视频。我们将记录婴儿观看实时视频和延迟视频的时间。 我们还将比较延迟不同时间量的视频的相对观看时间。 对于成人，我们还将展示隐藏动作（在本例中为手臂动作）的视频。为了研究成年人感知视觉刺激和本体感觉刺激之间对应关系的能力，我们将要求判断视频是实时的还是延迟的。 对于成年人，我们也会操纵他们执行的动作类型。 为了研究成年人的本体感觉短期记忆，我们将呈现延迟不同时间量的视频，并要求判断该视频是他们自己动作的回放还是另一个演员的录音。 该研究计划将是首次全面检查，重点关注成人和婴儿对本体感受信息的感知和短期记忆的时间特征。