Title | Acquisition, representation, and transfer of models of visuo-motor error |
Authors | Zhang, Hang Kulsa, Mila Kirstie C. Maloney, Laurence T. |
Affiliation | Peking Univ, Dept Psychol, Beijing 100080, Peoples R China. Peking Univ, Beijing Key Lab Behav & Mental Hlth, Beijing 100080, Peoples R China. Peking Univ, PKU IDG McGovern Inst Brain Res, Beijing 100080, Peoples R China. Peking Tsinghua Ctr Life Sci, Beijing, Peoples R China. NYU, Dept Psychol, New York, NY 10003 USA. NYU, Ctr Neural Sci, New York, NY 10003 USA. NYU, Inst Interdisciplinary Study Decis Making, New York, NY USA. Peking Univ, Dept Psychol, 52 Haidian Rd, Beijing 100080, Peoples R China. |
Keywords | perception and action movement planning visuo-motor uncertainty representation transfer choice 2-DIMENSIONAL SPACE DECISION-THEORY PERCEPTION UNCERTAINTY ACCURACY TIME TASK |
Issue Date | 2015 |
Publisher | JOURNAL OF VISION |
Citation | JOURNAL OF VISION.2015,15,(8). |
Abstract | We examined how human subjects acquire and represent models of visuo-motor error and how they transfer information about visuo-motor error from one task to a closely related one. The experiment consisted of three phases. In the training phase, subjects threw beanbags underhand towards targets displayed on a wall-mounted touch screen. The distribution of their endpoints was a vertically elongated bivariate Gaussian. In the subsequent choice phase, subjects repeatedly chose which of two targets varying in shape and size they would prefer to attempt to hit. Their choices allowed us to investigate their internal models of visuo-motor error distribution, including the coordinate system in which they represented visuo-motor error. In the transfer phase, subjects repeated the choice phase from a different vantage point, the same distance from the screen but with the throwing direction shifted 45 degrees. From the new vantage point, visuo-motor error was effectively expanded horizontally by root 2. We found that subjects incorrectly assumed an isotropic distribution in the choice phase but that the anisotropy they assumed in the transfer phase agreed with an objectively correct transfer. We also found that the coordinate system used in coding two-dimensional visuo-motor error in the choice phase was effectively one-dimensional. |
URI | http://hdl.handle.net/20.500.11897/421045 |
ISSN | 1534-7362 |
DOI | 10.1167/15.8.6 |
Indexed | SCI(E) SSCI |
Appears in Collections: | 心理与认知科学学院 行为与心理健康北京市重点实验室 |