首页 /公告 每周论坛之三(总第184期):钱洁慧(中山大学)张可(博士生)、李卓伦(研究生),2018年9月17日下午

Exploring the characteristics of working memory for depth information

发布人:高级管理员 发布日期:2018-09-19
主题
Exploring the characteristics of working memory for depth information
活动时间
-
活动地址
心理学系305
主讲人
钱洁慧 副教授

每周论坛之三(总第184期)

报告人:钱洁慧 副教授、张可(博士生)、李卓伦(研究生)

报告人单位:中山大学心理学系

题目:Exploring the characteristics of working memory for depth information时间:2018年9月17日 (周一,14:20-16:00)

地点:中山大学东校园心理学系(南学院楼C座)305

报告简介:

One of the subsystems of Baddaley’s model on working memory is visuo-spatial sketchpad. It involves temporarily holding and processing visual information and spatial information. Although research on visual working memory is extensive, most studies employed visual stimuli presented at the fronto-parallel plane and few involved depth perception. Here, we explored working memory for depth information (DWM) by using a change detection task and an estimation task. The memory items were presented at various depth planes perpendicular to the line of sight, with one item per depth plane. The depth planes were separated by relative disparities using a Wheatstone stereoscope. Participants were required to make judgment on depth where the target (one of the memory items) located. We found that: 1) the change detection accuracy was much lower than that reported for visual working memory; 2) the memory performance (accuracy and estimation error) degraded with the number of memory items presented (set size); 3) the accuracy was higher for items presented at the nearest and farthest depth planes in relation to participants; 4) the performance was better when the probe was presented along with the other items originally in the memory array. These findings suggest that storage for depth information is more limited and imprecise than that for visual information, and the memory performance improves if references are provided. In addition, the advantage for memorizing the nearest and farthest depth suggests a serial-position effect, and indicates that DWM depends on the egocentric distance between an observer and the to-be-remembered object

报告人简介:

钱洁慧,女,中山大学心理学系副教授,硕士生导师。研究兴趣为视觉感知,如深度知觉、视觉工作记忆的认知机制与神经基础;以及对其进行计算建模等。