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.

本体感受，或者对身体部位的位置和运动的内部意义在很大程度上是被遗忘的感觉。 但是，对于目标指导行动的组织与其他面向外部的感官（例如视觉和试听）一样重要。 在此处提出的这项研究计划中，我们打算通过检查出现本体感受意识的时间窗口，研究婴儿和成人的本体感受。 使用视频延迟设备，我们提供隐藏身体运动的视觉反馈。 然后，我们可以研究参与者认识到参与者仍然可以检测到内部运动感觉与该运动的视觉反馈之间的对应关系的延迟程度和延迟程度之前，我们可以研究所需的延迟程度。 这样，我们可以通过研究感知和短期记忆中的本体感受和视力的整合来评估本体感受。 在6个月大的婴儿中，我们将使用一个模式的视觉偏好程序，从而显示婴儿自己隐藏的腿部运动的视频。我们将记录婴儿在现场直播与延迟的视频的看法。 我们还将将相对的时间与视频延迟不同的视频进行比较。 对于成年人，我们还将展示隐藏运动的视频（在这种情况下为ARM运动）。为了研究成年人感知视觉和本体感受刺激之间对应关系的能力，我们将要求判断视频是现场还是延迟。 对于成年人，我们还将操纵他们执行的运动类型。 为了研究成年人的本体感受短期记忆，我们将介绍视频，以不同的时间延迟，并要求判断视频是播放自己的动作还是对另一个演员的录音。 该研究计划将是第一个综合检查，重点是成年人和婴儿的感知以及对本体感受信息的短期记忆的时间特征。