JENNIFER DURST, PH.D., ABPP SGU PSYCHOLOGICAL SERVICES CENTER Sleep: Tell me, what’s that for?

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Presentation transcript:

JENNIFER DURST, PH.D., ABPP SGU PSYCHOLOGICAL SERVICES CENTER Sleep: Tell me, what’s that for?

Goals for today Understand the impact of sleep on cognition, learning, and mood Learn ways to sleep better

How many times has this happened to you?

(HINT: YES!) So, does that lack of sleep matter?

Lack of sleep* has negative effects on… Higher cognitive functions  Attention and concentration  Learning and memory  Problem solving, decision making, creativity Academic performance Mood * we’ll focus mainly on chronic partial sleep deprivation = < 5-7 hours per night

Overall Cognitive Function Across cognitive tasks, performance of partially sleep deprived persons fell 3 standard deviations below that of non-sleep deprived 1  Non-sleep deprived the 50 th percentile = sleep deprived <1 st percentile severely impaired  That’s a 55 IQ or severely impaired Pre-frontal cortex (PFC) involved in executive processes susceptible to sleep deprivation 2, 3  w/chronic partial deprivation = deficits accumulate, even when you don’t feel sleepy

Attention Day time sleepiness and “microsleeps” 3  Failure to respond during cognitive demands  Instability in cognitive performance, i.e., errors of omission and commission, which increases with time on task Vigilance (sustained attention) reduced by almost 1 standard deviation 4 (that’s 15 IQ points!) PFC is critical structure in attention control

Memory Failure to retain new information 2, 3  Sleep is needed to consolidate both procedural (skill) and declarative (knowledge) memories  There is also data showing the importance of sleep in the integration of new information into existing networks 5 Decline in short-term recall and working memory 3

Academic Performance Less sleep correlated with lower GPA 6 Cognitive slowing on self-paced tasks, and time pressure increases errors 3

Mood Mood ratings 3 standard deviations below non-sleep deprived 1 More emotional reactivity 7  Without sleep the brain's emotional centers were more reactive Stress, depression, irritability increase

How much do you need? CDC – 7-9 hours 7 per night is recommended minimum Need to be consistent

How to get better sleep Make it a priority – VALUE IT!  Treat it like food and water Understand it doesn’t require effort – don’t need to fight for it Bed = sleep and sex only  Avoid reading, studying, watching TV, etc. in bed

How to get better sleep Consistent bed and wake up times  NO ALL NIGHTERS!  All nighters = ↑ confusion, ↓ attention and working memory for days Bed time routine If can’t sleep after 30 minutes, get up and redo bed time routine  Don’t associate bed with tossing and turning  Keep lights low No screens for half an hour before sleep No naps

How to get better sleep Address anxiety  Breathe!  Mindfulness  Apps  Get some headspace.com  Breathe2Relax, Mindshift, Bellybio (iphone only)  E.g., Sleep well with Glenn Harrold (hypnosis)

If you need more help… Psychological Services Center (PSC)   Campeche Building (behind Bourne, above Accounts department)  Department of Educational Service (DES)   Below Pensick Hall  Individual Learning Strategist, Seminars, Handouts, etc.  My SGU – Student Services – DES Student Resource

References 1. Pilcher, J.J. & Huffcutt, A.I. (1996). Effects of sleep deprivation on performance: A meta-analysis. Sleep, 19, Curcio, G., Ferrara, M., & De Gennaro, L. (2006). Sleep loss, learning capacity and academic performance. Sleep Medicine Reviews, 10, Durmer, J.S. & Dinges, D.F. (2005). Neurocognitive consequences of sleep deprivation. Seminars in Neurology, 25(1), Philibert I. (2005). Sleep loss and performance in residents and nonphysicians: a meta-analytic examination. Sleep, 28(11), Walker MP. Sleep-dependent memory integration. (2009). Frontiers in Neuroscience, 3(3), Lowry, M., Dean, K., & Manders, K. (2010). The link between sleep quantity and academic performance for the college student. Sentience: The University of Minnesota Undergraduate Journal of Psychology, 3, Yoo, S.S., Gujar, N., Hu, P., Jolesz, F.A. & Walker, M.P. (2007). The human emotional brain without sleep: A prefrontal-amygdala disconnect. Current Biology, 17(20),