# PWR-072 — Visuomotor integration: learner worksheet Release: Revision 7T · Full Tutorial Edition Estimated time: Estimated 26 min reading and worksheet pass Difficulty: Intermediate Equipment: Common household or practice equipment — A local offline cursor task configured exactly as follows: 600×600 px field; centre 300,300; eight 40 px targets on a 180 px radius at mathematical angles 0° right, 45° up-right, 90° up, 135° up-left, 180° left, 225° down-left, 270° down and 315° down-right. It hides the operating-system cursor inside the field, displays one artificial cursor rotated about the centre, accepts one click per target and logs target angle, physical endpoint, displayed endpoint and phase. Baseline uses 0° rotation; adaptation rotates displayed feedback 10° clockwise; washout restores 0°. The restore key must work before a scored trial begins.; Folded target orders: baseline 0,180,90,270,45,225,135,315,180,0,270,90,225,45,315,135; adaptation 0,90,180,270,45,135,225,315,180,270,0,90,225,315,45,135,90,0,270,180,135,45,315,225; washout 45,225,0,180,315,135,90,270,225,45,180,0,135,315,270,90. A delayed retest uses the adaptation targets in reverse order, not the original file order.; Large radial targets and a pointing device already comfortable for the learner.; A fixed chair, desk and device sensitivity.; Trial log for angular/endpoint error, misses, time and symptoms. Space: Open movement area Automated structural checklist: 10 of 10 structural checks present Evidence quality/context: G1; Focused research depth Automated method-quality band: Established Method-rating basis: Structure coverage, instruction/check specificity, alternative distinctness, source troubleshooting, comparison depth and whether purpose/check fields are authored rather than derived. Editorial review: Pending manual editorial sign off ## Before you begin - [ ] I read the tutorial authority and stop conditions. - [ ] I have the required equipment/space or a declared accessible alternative. ## Canonical source context The brain can adapt movement to altered visual feedback, but the learning is structured and often task-specific. Visuomotor adaptation means learning a declared mapping between seen feedback and movement. The learner uses approved software with a mild fixed cursor rotation, records baseline endpoint error, practises accurate reaches, removes the rotation and observes the after-effect. It remains a seated computer task, not general hand–eye ability or clinical prism therapy. Target outcome: The learner completes baseline, mild-remapping and washout blocks with endpoint errors, misses, time and symptoms recorded. ### Authority and setup conditions - Use only a mild software remapping while seated; no prism glasses, walking, tools or real-world aiming. - Fix device sensitivity, target size, arm support and rotation angle. - Practise an emergency exit key and restore-normal command. - Do not use if altered visual feedback provokes vertigo, migraine or seizures. ### Required or supplied materials - A local offline cursor task configured exactly as follows: 600×600 px field; centre 300,300; eight 40 px targets on a 180 px radius at mathematical angles 0° right, 45° up-right, 90° up, 135° up-left, 180° left, 225° down-left, 270° down and 315° down-right. It hides the operating-system cursor inside the field, displays one artificial cursor rotated about the centre, accepts one click per target and logs target angle, physical endpoint, displayed endpoint and phase. Baseline uses 0° rotation; adaptation rotates displayed feedback 10° clockwise; washout restores 0°. The restore key must work before a scored trial begins. - Folded target orders: baseline 0,180,90,270,45,225,135,315,180,0,270,90,225,45,315,135; adaptation 0,90,180,270,45,135,225,315,180,270,0,90,225,315,45,135,90,0,270,180,135,45,315,225; washout 45,225,0,180,315,135,90,270,225,45,180,0,135,315,270,90. A delayed retest uses the adaptation targets in reverse order, not the original file order. - Large radial targets and a pointing device already comfortable for the learner. - A fixed chair, desk and device sensitivity. - Trial log for angular/endpoint error, misses, time and symptoms. ## 1. Lock the movement setup Record device, sensitivity, target size, start point, support and screen distance. Why: Motor errors depend on both software and physical setup. Success check: The configuration is reproducible. Accessible alternative: Complete the same research action — “Record device, sensitivity, target size, start point, support and screen distance.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The configuration is reproducible.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 2. Record normal-mapping baseline With rotation at 0°, complete the 16 supplied baseline targets from the centre, one click per target, prioritising first endpoint over speed. Why: Baseline separates ordinary pointing error from remapping error. Success check: Endpoint error, misses and time are saved. Accessible alternative: Replace small or visual-only information with enlarged text, high-contrast display, spoken description or tactile/verbal cueing while preserving the same decision and success check. Allow rest and slower target presentation; initial endpoint accuracy remains the measure. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 3. Apply the declared rotation Set the artificial cursor to exactly 10° clockwise, verify the displayed test vector against the software readout and load the 24 supplied adaptation targets. Why: The mapping must be known and stable. Success check: The software reports the expected angle and restore command works. Accessible alternative: Complete the same research action — “Set the artificial cursor to exactly 10° clockwise, verify the displayed test vector against the software readout and load the 24 supplied adaptation targets.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The software reports the expected angle and restore command works.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 4. Aim, observe, reset For each target, aim once, observe the endpoint, return to centre and wait for the next target. Why: One movement per target preserves error information. Success check: No dragging, correction loop or extra click hides the initial error. Accessible alternative: Replace small or visual-only information with enlarged text, high-contrast display, spoken description or tactile/verbal cueing while preserving the same decision and success check. Increase target size or arm support while keeping those values fixed within comparisons. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 5. Correct gradually Use endpoint feedback to adjust the next reach; do not consciously rotate the device or body setup. Why: Trial-by-trial error reduction is the learning signal. Success check: Median endpoint error falls across the provider-defined block. Accessible alternative: A supported, seated, reduced-range or slower version of “Use endpoint feedback to adjust the next reach; do not consciously rotate the device or body setup.” is equivalent only when it keeps the same trained or measured target, declared configuration and success check: “Median endpoint error falls across the provider-defined block.” If any of those change, record it as a related alternative rather than an equivalent repetition. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 6. Stop the remapping block End at the fixed trial count or first nausea, dizziness, headache or loss of control. Why: More trials are not better when symptoms or fatigue alter movement. Success check: The stop reason and trial count are recorded. Accessible alternative: Complete “End at the fixed trial count or first nausea, dizziness, headache or loss of control.” in shorter passes, or use keyboard input, dictation or a support person, while preserving this success check: “The stop reason and trial count are recorded.” Use trackball, switch, stylus or alternative pointing device as a declared configuration. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 7. Remove rotation and test after-effect Press restore, confirm 0° and complete the 16 supplied washout targets with endpoint feedback withheld until each click; preserve any early error opposite the trained rotation. Why: An after-effect helps distinguish adaptation from memorising target locations. Success check: Normal mapping is confirmed and early washout error is preserved. Accessible alternative: A supported, seated, reduced-range or slower version of “Press restore, confirm 0° and complete the 16 supplied washout targets with endpoint feedback withheld until each click; preserve any early error opposite the trained rotation.” is equivalent only when it keeps the same trained or measured target, declared configuration and success check: “Normal mapping is confirmed and early washout error is preserved.” If any of those change, record it as a related alternative rather than an equivalent repetition. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 8. Wash out and retest later Continue only until ordinary pointing returns, then use novel target order after a delay. Why: The learner should leave with normal control; novel order tests retention. Success check: End performance is near baseline and the delayed order is unfamiliar. Accessible alternative: Replace small or visual-only information with enlarged text, high-contrast display, spoken description or tactile/verbal cueing while preserving the same decision and success check. Allow rest and slower target presentation; initial endpoint accuracy remains the measure. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## Reflection What changed? ________________________________________________________________________________ What remains difficult? ________________________________________________________________________________ What will I repeat, adapt, ask for help with, or stop? ________________________________________________________________________________ --- Completion of this worksheet demonstrates tutorial participation only. It does not establish capability, qualification, safety clearance, diagnosis, treatment or independent validation.