[Neural basis of procedural memory]

Area of Science:

• Neuroscience
• Cognitive Psychology

Context:

• Procedural memory underpins daily activities, including motor skills, perceptual abilities, and cognitive processes.
• Acquisition of procedural memory relies on trial-and-error learning.
• This memory type is broadly classified into motor, perceptual, and cognitive domains.

Purpose:

• To review the cognitive and neural underpinnings of procedural memory across its three main types.
• To synthesize findings on brain regions involved in motor, perceptual, and cognitive procedural memory.
• To highlight the impact of neurological disorders on procedural memory functions.

Summary:

• Dysfunction in the basal ganglia or cerebellum impairs motor-type procedural memory, as observed in Parkinson disease, Huntington disease, and spinocerebellar degeneration.
• Neuroimaging studies indicate that motor procedural memory involves frontal, parietal, basal ganglia, and cerebellar regions.
• Perceptual and cognitive procedural memory rely on distinct, though overlapping, neural networks, including the fusiform gyrus for perceptual tasks.

Impact:

• Understanding the neural basis of procedural memory is crucial for diagnosing and treating memory-related disorders.
• Identifying specific brain networks for each procedural memory type can inform targeted therapeutic interventions.
• Further research into the neural "network" of procedural memory is needed for a comprehensive understanding.