Studies into reaching have typically looked at the reaching arm or the eyes alone, ranging from single actions performed in controlled lab settings to a series of actions completed in natural environments. The current experiment looked at measures of the hand, arm and eyes as a right-handed subject performed a single reach and grasp action among real objects with their right hand. Specifically, this experiment was designed to investigate the impact of a potential non-target object (NTO) in the reach space on eye-hand coordination. Results showed that NTOs contralateral to the reaching arm produced almost no effects, whereas those ipsilateral became more “invasive” as they were located nearer a subject. Ipsilateral NTOs also produced a shift away from their location in fixation and grasp location on a target. These results suggest the brain used an “attention-for-action” system that highlighted locations as they became more relevant to the task.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:MWU.1993/22122 |
| Date | 28 August 2013 |
| Creators | Graham, Timothy J. |
| Contributors | Marotta, Jonathan (Psychology), Kelly, Debbie (Psychology) Szturm, Tony (Medical Rehabilitation) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Detected Language | English |
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