Kinesiology 1080A/B Lecture Notes - Lecture 21: Motor Goal, Tennis Ball, Frontal Lobe

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Anti-secad task (highest level of the 3 stage response stage) Look directly at a target (prosaccade) stimulus driven, mediated by superior colliculus, easy to do this because it"s a well practiced task. Visual vector inversion: take the target and think about where it wo0uld be in symmetrical space. **can do this in an overlap or gap paradigm** Overlap: can see the fixation cross, then a target flashes, but cross is still there. Fixation neurons lock eye onto fixation cross (inhibit you from making a response as long as fixation cross is there) Gap: fixation cross disappears and then target appears. Because of that tiny gap, you get a decrease in the excitation of fixation neurons (don"t inhibit a seccade). Reaction time is much shorter fixation neurons are not firing extensively, therefore you can excite a seccade much sooner: antiseccades always have longer rt than proseccades. **chart provides us with the basis for how we approach pro and antiseccades**