The Relation of Mental Rotation and Postural Stability

Area of Science:

• Cognitive psychology
• Motor control
• Neuroscience

Background:

• Dual-tasking research explores the interplay between cognitive and motor processes.
• Mental rotation tasks (MRT) involve mentally manipulating objects in 3D space.
• Postural stability is crucial for daily activities and is influenced by various cognitive demands.

Purpose of the Study:

• To investigate how different types of mental rotation tasks (object-based, egocentric) affect postural stability.
• To compare the impact of embodied (human figures) versus non-embodied (cubes) stimuli in MRT on balance.
• To examine the role of cognitive control and task embodiment in dual-tasking scenarios involving balance.

Main Methods:

• 84 participants performed object-based MRT (cubes, human figures), egocentric MRT, a math task (cognitive control), and a neutral task.
• Participants stood on a force plate in a narrow stance while performing tasks.
• Postural stability was quantified using parameters of the Center of Pressure (CoP) trajectory.

Main Results:

• Mental rotation tasks generally led to increased postural stabilization compared to the neutral condition.
• Egocentric MRT and tasks with embodied stimuli (human figures) resulted in greater postural stability than object-based MRT with cube figures.
• Higher rotation angles in object-based MRT showed a tendency to increase postural sway.

Conclusions:

• Mental rotation tasks interact with motor control, influencing postural stability.
• The type of mental rotation task (egocentric vs. object-based) and the nature of the stimuli (embodied vs. non-embodied) significantly modulate postural control.
• Findings highlight the importance of task characteristics and embodiment in dual-tasking research involving cognitive and motor skills.