Tag archives for circadian

Seasonal Affective Disorder, More Than the Winter Blues


"Understanding Seasonal Affective Disorder" is a short video from Toronto's prestigious Centre for Addiction and Mental Health (CAMH) treatment and research hospital. Dr. Robert Levitan, Research Head in CAMH’s Mood and Anxiety Disorders Program, discusses the disorder and its treatments.

As days grow shorter in late fall and early winter, the lack of sunlight leads to changes in the circadian system that can trigger SAD. More common in women than men (up to 80% of sufferers are female), symptoms range...
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Sleep Disorders

[Image: top row shows brain activity during a math task with adequate sleep, while the bottom row shows the same task performed under sleep deprivation. Via Prof. J. Christian Gillin, in NeuroReport 1999. Read more.]

title Health Matters: Sleep Disorders
description "Sleep disorders are a major public health concern affecting millions of individuals, families, and communities on a daily basis. We are a chronically overtired country, which often...
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Sleepy


[Image: Madeline is Sleeping, by fab neosurrealist artist Tina Imel (2007). Buy a print here.]

title Sleep, Memory and Dreams: A Cognitive Neuroscience Approach
description Robert Stickgold, of the Center for Sleep and Cognition at Harvard Medical School gives a visiting lecture at Yale Psychiatry. Discusses the physiology of sleep, memory consolidation, sleep deprivation, disorders, relevant neuropsychiatry and more. Excellent lecture, fairly decent video quality.
producer Yale University School...
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