Electroencephalographic functional equivalence during observation of action

Area of Science:

• Neuroscience
• Sports Science
• Cognitive Psychology

Background:

• Cortical activation patterns during elite sports performance are crucial for understanding expert motor control.
• Observing performance, even visually, can elicit neural responses similar to actual execution, a phenomenon known as functional equivalence.
• Understanding the neural basis of functional equivalence in sports like air-rifle shooting can inform training methodologies.

Purpose of the Study:

• To investigate cortical activation differences between physical air-rifle shooting and three distinct visual observation conditions.
• To determine if posture or sensory feedback (kinetic, haptic) influences neural activity during performance observation.
• To explore the relationship between the degree of functional equivalence during observation and neural variability.

Main Methods:

• Electroencephalography (EEG) was used to record cortical activity from 11 sites in elite air-rifle shooters during actual shooting.
• EEG data were also collected while participants observed video replays of their own performance from an internal perspective under seated and standing conditions, with and without their rifle.
• Analysis focused on the 6 seconds preceding shot release, comparing physical execution with observational conditions.

Main Results:

• No significant differences in cortical activation were found between physical shooting and the observation conditions, except at the left anterior temporal site (T5).
• This suggests that visual perception plays a dominant role in functional equivalence, overriding postural or kinetic/haptic influences.
• Increased functional equivalence during observation led to reduced observation/execution variability in temporal brain areas.

Conclusions:

• Elite performers' brain activity is similarly engaged across various observation conditions, regardless of physical context.
• While visual input is primary, achieving greater neural equivalence, particularly in temporal areas, may necessitate more functionally matched observation conditions.
• Performer self-reports indicated distinct perceptions of functional equivalence across the different observational scenarios.