# PWR-063 — Prosthetic embodiment: learner worksheet Release: Revision 7T · Full Tutorial Edition Estimated time: Estimated 13 min reading; practical time is provider-set Difficulty: Intermediate Equipment: Common household or practice equipment — The individually fitted prosthesis and approved liner/socket/components.; A mirror or visual feedback setup selected by the team.; One light, non-breakable practice object and stable work surface.; Skin-check aid and record for device state, task, control errors, embodiment ratings and burden. Space: Room-scale practice space Automated structural checklist: 10 of 10 structural checks present Evidence quality/context: G4; Focused research depth Automated method-quality band: Comprehensive 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 Prosthetic embodiment can include ownership, agency and perceived location, but none is required for useful prosthesis use. Kai’s prosthetic team checks residual-limb skin, fit and terminal-hand calibration. Kai then maps where the hand feels located, moves a foam cube, and rates command agency, ownership, comfort and usefulness separately. Neutral questions preserve low or mixed ratings instead of coaching a natural-limb claim. Target outcome: With Kai's prosthetic team, Kai completes the prescribed foam-cube transfer and reports control, embodiment, burden and skin condition as separate outcomes. ### Authority and setup conditions - The prosthetist confirms fit, component integrity, battery/connection and permitted wear time. - Inspect residual limb and contact areas using a mirror or helper. - Do not use a damaged, misfitting, uncharged or wet device outside its rating. - Agree stops for pain, pressure, skin change, electrical sensation, fall risk or device fault. ### Required or supplied materials - The individually fitted prosthesis and approved liner/socket/components. - A mirror or visual feedback setup selected by the team. - One light, non-breakable practice object and stable work surface. - Skin-check aid and record for device state, task, control errors, embodiment ratings and burden. ## 1. Inspect before donning Check skin, liner, socket and component surfaces using the team-approved sequence; mark any redness or wound. Why: Skin condition and fit can change from one session to the next. Success check: No unapproved skin issue or damaged component is present. Accessible alternative: A spoken or tactile version of “Check skin, liner, socket and component surfaces using the team-approved sequence; mark any redness or wound.” can rehearse the response sequence, but it removes the declared visual stimulus and is therefore a related activity, not an equivalent attempt at Prosthetic embodiment. To preserve the target, keep the authored visual stimulus and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “No unapproved skin issue or damaged component is present.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 2. Don with the trained sequence Apply liner/socket and secure components exactly as fitted; do not add padding or alter alignment. Why: Small fit changes affect control, pressure and safety. Success check: Terminal hand is seated at the team-set alignment marks and feels as expected. Accessible alternative: A spoken or tactile version of “Apply liner/socket and secure components exactly as fitted; do not add padding or alter alignment.” can rehearse the response sequence, but it removes the declared visual stimulus and is therefore a related activity, not an equivalent attempt at Prosthetic embodiment. To preserve the target, keep the authored visual stimulus and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “Terminal hand is seated at the team-set alignment marks and feels as expected.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 3. Calibrate control Run prosthetist-approved opening/closing or signal calibration in the supported position. Why: Control settings must match the current terminal-hand configuration and residual-limb state. Success check: Terminal hand responds predictably before handling an object. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Terminal hand responds predictably before handling an object.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 4. Locate terminal hand in space With chosen visual or sensory feedback, point to the terminal hand and rehearse approaching foam cube without grasping. Why: Spatial prediction supports controlled contact and distinguishes location from ownership feeling. Success check: Approach stops beside foam cube without collision. Accessible alternative: A spoken or tactile version of “With chosen visual or sensory feedback, point to the terminal hand and rehearse approaching foam cube without grasping.” can rehearse the response sequence, but it removes the declared visual stimulus and is therefore a related activity, not an equivalent attempt at Prosthetic embodiment. To preserve the target, keep the authored visual stimulus and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “Approach stops beside foam cube without collision.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 5. Contact and grasp lightly Use prosthetist-set command to contact and hold the foam cube with the minimum reliable force. Why: Excess grip can damage objects and increase effort. Success check: Foam cube is secure without crushing, slip or unexpected activation. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Foam cube is secure without crushing, slip or unexpected activation.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 6. Move and release Transport along the marked short path and release inside the blue landing square while prosthetist guards safety. Why: A complete functional loop includes controlled release. Success check: Foam cube lands inside the blue square and terminal hand stops as commanded. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Foam cube lands inside the blue square and terminal hand stops as commanded.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 7. Rate separate experiences Report agency (“I caused it”), ownership (“felt like mine”), location and comfort separately on the agreed scale. Why: These experiences can differ and should not be forced into one embodiment score. Success check: All ratings are recorded even when ownership is low. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “All ratings are recorded even when ownership is low.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 8. Remove and inspect End at the prescribed wear time, doff with the trained sequence and recheck skin after the prosthetist-set interval. Why: Pressure effects may appear after removal. Success check: Skin and symptoms meet the prosthetic-team continuation rule. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Skin and symptoms meet the prosthetic-team continuation rule.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 9. Mark perceived location before the grasp With the terminal hand supported and eyes closed only if Kai and the prosthetic team approve, ask Kai to point on a large body-map sheet to the felt location of the terminal hand. Then uncover the terminal hand and mark the physical terminal-hand location in a second colour. Why: A location mismatch is useful fitting or feedback information and is not the same as weak agency or ownership. Success check: Felt and physical marks are preserved separately with posture, vision condition and prosthesis configuration. Accessible alternative: A spoken or tactile version of “With the terminal hand supported and eyes closed only if Kai and the prosthetic team approve, ask Kai to point on a large body-map sheet to the felt location of the terminal hand. Then uncover the terminal hand and mark the physical terminal-hand location in a second colour.” can rehearse the response sequence, but it removes the declared visual stimulus and is therefore a related activity, not an equivalent attempt at Prosthetic embodiment. To preserve the target, keep the authored visual stimulus and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “Felt and physical marks are preserved separately with posture, vision condition and prosthesis configuration.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 10. Probe agency without demanding ownership After the foam-cube transfer, ask two neutral questions in random order: “How much did you feel you caused that movement?” and “How much did the terminal hand feel like part of you?” Record each answer before discussion. Why: A wearer may command the terminal hand reliably without experiencing it as owned, or may report familiarity without precise control. Success check: Agency and ownership retain separate scale values and the occupational therapist does not suggest the preferred direction. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Agency and ownership retain separate scale values and the occupational therapist does not suggest the preferred direction.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check 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.