Imagine to automatize: automatization of stimulus-response coupling after action imagery practice in implicit...

Area of Science:

• Cognitive Neuroscience
• Motor Control
• Psychology

Background:

• Action imagery practice (AIP) involves mentally rehearsing actions to improve performance.
• AIP and action execution practice (AEP) share underlying motor mechanisms.
• Automatization, a reduction in dual-task costs, is a key indicator of motor learning.

Purpose of the Study:

• To investigate whether AIP can lead to motor automatization.
• To compare the effects of AIP, AEP, and control practice on dual-task performance.
• To examine sequence-specific and sequence-unspecific learning after different practice types.

Main Methods:

• Participants were divided into AIP, AEP, and control groups, practicing serial reactions to visual stimuli.
• Practice involved either sequential or random sequences.
• Dual-task conditions included counting tones alongside visual stimuli to measure dual-task costs.

Main Results:

• All groups showed general, sequence-unspecific learning (reduced reaction times).
• AIP and AEP groups demonstrated greater sequence-specific learning compared to random practice.
• Dual-task costs were reduced across all groups, indicating sequence-unspecific automatization.

Conclusions:

• Both action execution practice (AEP) and action imagery practice (AIP) can automate stimulus-response (S-R) coupling.
• Motor automatization can be achieved through mental imagery alone.
• AIP offers a viable alternative to AEP for motor skill enhancement and automatization.