Sleep duration is associated with Caudate volume and executive function.

Area of Science:

• Neuroscience
• Sleep Science
• Cognitive Neuroscience

Background:

• Previous research linked caudate nucleus volume to sleep duration in older adults.
• The relationship between sleep duration and caudate volume in younger populations is not well understood.

Purpose of the Study:

• To investigate the association between caudate nucleus volume and habitual sleep duration across a wide age range (10-85 years).
• To examine the relationship between sleep duration, caudate volume, and executive function.

Main Methods:

• Utilized a large sample size (N=464) for volumetric analysis of the caudate nucleus.
• Assessed habitual sleep duration and executive function performance.

Main Results:

• A significant positive association was found between caudate nucleus volume and habitual sleep duration, most pronounced in younger individuals.
• Sleep duration was significantly associated with executive function performance.
• Caudate nucleus volume did not significantly predict executive function performance.

Conclusions:

• Sleep duration is associated with caudate nucleus volume and executive function.
• External factors likely modulate executive function, mediating the relationship between caudate-sleep and cognitive performance.