Development of a new computerized prism adaptation procedure for visuo-spatial neglect

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Human-Computer Interaction

Background:

• Prism adaptation (PA) is a potential therapy for visuo-spatial neglect.
• Current PA methods show inconsistent effects and limited clinical use.
• Standardization and user-friendliness are key for effective PA implementation.

Purpose of the Study:

• To validate a novel, standardized, home-friendly, and game-like PA technique called Peg-the-Mole.
• To assess Peg-the-Mole's efficacy in inducing after-effects in healthy participants.
• To compare Peg-the-Mole with a conventional PA protocol for effectiveness and user experience.

Main Methods:

• Study 1: 32 participants used Peg-the-Mole with prism or sham goggles to measure after-effects on midline judgment and pointing.
• Study 2: 42 participants compared Peg-the-Mole to a typical PA protocol, assessing after-effects, enjoyment, and generalization to a throwing task.

Main Results:

• Peg-the-Mole successfully induced significant after-effects in Study 1.
• After-effects from Peg-the-Mole were equivalent to the typical PA protocol in Study 2.
• Participants reported higher enjoyment with Peg-the-Mole compared to the traditional method.

Conclusions:

• Peg-the-Mole is a validated, standardized computerized PA procedure.
• The technique effectively induces significant prism adaptation after-effects.
• Modifications like Peg-the-Mole can enhance PA usability, enjoyment, and potential clinical availability.