Prof. Dr. Björn Rasch, Cognitive Biopsychology and Methods University of Fribourg

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1 Prof. Dr., Cognitive Biopsychology and Methods University of Fribourg 1

2 Background Sleep is benefical for the consolidation of memories } Encoding 2 Consolidation Retrieval

3 Sleep architecture Wach REM S1 S2 S3 S4 S1 S2 SWS REM EOG Spindle Slow Wave REM EEG K-Komplex 3

4 Sleep benefits memory consolidation Jenkins & Dallenbach 1924, Am. J. Psychol. nach Rasch & Born, Physiol. Rev., in press 4

5 Sleep and Memory: experimental studies Does the degree of depth of encoding before sleep effects the memory-benefit of sleep? Levels of processing approach, D. Craig 5

6 Sleep and Memory: experimental studies Sleep and levels of processing Michael Munz 6

7 Sleep and Memory: experimental studies Sleep and Levels of processing 1 Michael Munz 40 young and healthy participants (18 35 years) Procedure Sleep group (N = 20 German speakers) Evening (19:00 22:00) Sleep (at home) Morning (7:00 10:00) Learning Immediate Recall Delayed recall (12h) Wake group (N = 20 German speakers) Morning (7:00 10:00) Wake (normal daily activities) Evening (19:00 22:00) Learning Immediate Recall Delayed recall (12h) 7

8 Sleep and Memory: experimental studies Sleep and Levels of processing 1I (one week) Michael Munz 20 young and healthy participants (18 35 years) Procedure Sleep group (N = 10 German speakers) Evening (19:00 22:00) Sleep (at home) Morning (7:00 10:00) Learning Immediate Recall Delayed recall (12h) Wake group (N = 10 German speakers) Morning (7:00 10:00) Wake (normal daily activities) Evening (19:00 22:00) Learning Immediate Recall Delayed recall (12h) 8

9 Literature Craik, F. I. M., & Lockhart, R. S. (1972). Levels of processing: A framework for memory research. Journal of Verbal Learning and Verbal Behavior, 11, Craik, F. I. M., Tulving, E. (1975). Depth of processing and the retention of words in episodic memory. Journal of Experimental Psychology: General, 104, Stickgold, R., & Walker, M. P. (2013). Sleep-dependent memory triage: evolving generalization through selective processing. Nature Neuroscience, 16(2), Daurat, A., Terrier, P., Foret, J., & Tiberge, M. (2007). Slow wave sleep and recollection in recognition memory. Consciousness and Cognition, 16(2),

10 Sleep and vocabulary learning Reactivation of word-pairs during sleep Dutch-German Schreiner & Rasch, Cerebral Cortex,

11 Sleep and vocabulary learning Thomas Schreiner Schreiner & Rasch, Cerebral Cortex,

12 Sleep and Memory: experimental studies The effect of sleep on Dutch vocabulary learning in German and French native speaker Effect of native language Prior language knowledge Hypothesis: Learning a similar language profits more from sleep Problem Recall performance before the retention interval Geman-speaking: Ca. 66 of 120 words French-speaking Ca. 43 of 120 words 12

13 Sleep and Memory: experimental studies Sleep and linguistic similarity Thomas Schreiner 40 young and healthy participants (18 35 years) Procedure Sleep group (N = 20 French speakers) Evening (19:00 22:00) Sleep (at home) Morning (7:00 10:00) Learning Immediate Recall Delayed recall (12h) Wake group (N = 20 French speakers) Morning (7:00 10:00) Wake (normal daily activities) Evening (19:00 22:00) Learning Immediate Recall Delayed recall (12h) 13

14 References Supervisor: Thomas Schreiner References: Schreiner & Rasch 2014, Cerebral Cortex Boosting Vocabulary Learning by Verbal Cueing During Sleep. Gaskel et al., 2014, Psychological Science Sleep Underpins the Plasticity of Language Production. Davis and Gaskel, 2009; Philos Trans R Soc Lond B Biol Sci. A complementary systems account of word learning: neural and behavioural evidence. Marlieke et al., 2012, Trends in Neuroscience How schema and novelty augment memory formation Diekelmann et al., 2009, Sleep Medicine Reviews The whats and whens of sleep-dependent memory consolidation 14

15 Sleep and Memory: experimental studies Sleep and phase-dependent reactivation Thomas Schreiner / Arndt-Lukas Klaasen Bergmann et al., 2012, J. Neurosci 15

16 References Supervisor: Thomas Schreiner References: Schreiner & Rasch 2014, Cerebral Cortex Boosting Vocabulary Learning by Verbal Cueing During Sleep. Diekelmann et al., 2009, Sleep Medicine Reviews The whats and whens of sleep-dependent memory consolidation Bergmann et al., 2012, Journal of Neuroscience EEG-guided transcranial magnetic stimulation reveals rapid shifts in motor cortical excitability during the human sleep slow oscillation. Cox et al., 2014, Plos One Sound asleep: processing and retention of slow oscillation phase-targeted stimuli. 16

17 Milestones 30. September 2015 Introduction, start reading, write abstract, hypothesis, procedure (1 page, english or german) Finished by 30. November 2015 Ca. 15. October 2015 Start of data collection Ca. 1.March 2015 End of data collection April 2015 Presentation of results in bachelor colloquium 11. April 2015: First version of bachelor thesis Feedback within 10 days 12. Mai 2015 Final version Absolute deadline 10. Juni 2015 Optional: Poster Presentation 17

18 Bachelor-Thesis pages, English or German Including references, not including supplemental material Times New Roman 12 pt., 1.5 line spacing Content (see Leitfaden Bachelorarbeiten) Abstract Introduction Methods Results Discussion and Outlook References Supplement Completed ethic proposal (do not send to ethic commission!) Printed and bound (no spirals) + pdf on CD CD must also contain all original data, preprocessed data and all analyses All excel sheets, SPSS / R data, experimental material (Questionnaires etc.) 18

19 Overview Bachelorthesis Sleep, traumatic memory and fmri: Geraldine Vozdanovic Antonia Tkalcec, Anja Kapfer Stress, sleep and emotional memory Anna Szymor Sleep and levels of processing I: Michael Munz 2 slots, Kathrin Lauber, Tanja Casiraghi Sleep and levels of processing II: Michael Munz 1 slot Sleep and linguistic similarity: Thomas Schreiner 2 slots: Pascal Mancini, Niels Bugge Sleep and reactivation: Thomas Schreiner / Arndt Lukas Klaasen 3 slots Ricarda Auchter, Franziska Bursch, Laura Zekaj 19