Yu-Shiuan Lin

Repeated Caffeine Intake Suppresses Cerebral Grey Matter Responses to Chronic Sleep Restriction in an A1 Adenosine Receptor-Dependent Manner.

This study shows that caffeine intake during chronic sleep restriction reduces grey matter volume, with effects modulated by A1 adenosine receptor availability.

Regular caffeine intake attenuates REM sleep promotion and sleep quality in healthy men

This study shows that regular daytime caffeine intake in men reduces REM sleep promotion and worsens sleep quality compared to placebo.

Working Memory Performance after Daily Caffeine Intake: Compromised Performance and Reduced Hippocampal Activity.

This study shows daily caffeine intake impairs working memory and reduces hippocampal activity in healthy adults, with acute withdrawal also affecting cognitive performance.

Caffeine-induced Plasticity of Grey Matter Volume in Healthy Brains: A placebo-controlled multimodal within-subject study

This study shows that daily caffeine intake reduces grey matter volume in humans and impairs working memory, suggesting potential long-term cognitive detriments.

Wide awake at bedtime? The effects of caffeine on sleep and circadian timing in teenagers - a randomized crossover trial

This study investigates the acute effects of caffeine on sleep and circadian timing in teenagers, finding reduced sleep quality and delayed melatonin onset.

The impact of daily caffeine intake on nighttime sleep: signs of overnight withdrawal?

This study investigates the impact of daily caffeine intake on nighttime sleep in habitual consumers, finding no significant differences in sleep structure or quality but reduced sigma frequency EEG power density, suggesting early signs of overnight withdrawal.

Caffeine-dependent changes of sleep-wake regulation: evidence for adaptation after repeated intake

This study examines how daily caffeine intake and withdrawal affect circadian rhythms and wakefulness in habitual consumers, finding no significant changes in melatonin or cortisol but increased sleepiness and attentional lapses during withdrawal.