Association of Quality of Sleep and Decreased Short Term Memory Function in Medical Students of Pelita Harapan University

Stevanie Budianto, Yusak M.T Siahaan


Background: Memory is a place where information is stored from the learning process or experience. There are several types of memory , one of them is short term memory. Declining sleep quality is directly proportional to the decrease in short-term memory. Poor sleep quality is often associated with medical student due to exams or vast amount of tasks. Therefore, researcher wants to see whether there is significant correlation between sleep quality and short-term memory function in students.

Aim: To assess the association of the quality of sleep towards short term memory function of medical student of Pelita Harapan University.

Methods: This study was conducted with a cross-sectional method, with taking sample using the method of a simple random sample. A total of 90 respondents at University of Pelita Harapan were taken. Data collected sorted out according to the inclusion and exclusion criteria. Quality of sleep assessed with PSQI questionnaire while short-term memory assessed by Digit span backward test. Results processed with SPSS version 24 and tested with Chi Square.

Results: Data analyzed by Chi square test showed there are 33 students (58.9%) have poor sleep quality and short term memory function. There are also significant association between the quality of sleep and short term memory function (p value = 0.026)

Conclusion: There is significant association between the quality of sleep and short term memory function of medical students of Pelita Harapan University.


sleep quality; short-term memory; medical students; Pittsburgh Sleep Quality Index; digit span


Full Text:



1. Tortora GJ, Derrickson B. Principles of Anatomy and Physiology, 14th ed. Roesch B, Elfers L, Trost K, editors. United State of America: Kevin Pace, Kevin Witt; 2014. 567 p.

2. Hall JE. Guyton and Hall Textbook of Medical Physiology. 13th ed. Philadelphia: Elsevier; 2016. 746, 763 p.

3. Bhinnety M. Struktur dan proses memori. Buletin Psikologi, 16(2):74-88. Available from:

4. Sherwood L. Fundamentals of Human Physiology. 4th ed. Cossio Y, Alexander S, Glubka A, editors. USA: Yolanda Cassio; 2012. 128, 130 p.

5. Purves D. Neuroscience [Internet]. 3rd ed. Augustine GJ, Fitzpatrick D, Hall WC, editors. Sunderland: Sinauer Associates, Inc; 2004. 659 p. Available from:

6. Smyth C, The Hartford Institute for Geriatric Nursing, New York University, College of Nursing. The Pittsburgh Sleep Quality Index (PSQI). 2012;29(6):1-2.

7. Anjani Djajaatmadja AH. Hubungan Kualitas Tidur Dengan Memori Jangka Pendek Pada Lansia Non Demensia. Unika Atma Jaya; 2016.

8. Xie W, Berry A, Lustig C, Deldin P, Zhang W. Poor Sleep Quality and Compromised Visual Working Memory Capacity. J Int Neuropsychol Soc. 2019;25(6):583-94.

9. Patrick Y, Lee A, Raha O, Pillai K, Gupta S, Sethi S, et al. Effects of sleep deprivation on cognitive and physical performance in university students. Sleep Biol Rhythms. 2017;15(3):217-25.

10. Zavecz Z, Nagy T, Galkó A, Nemeth D, Janacsek K. The relationship between subjective sleep quality and cognitive performance in healthy young adults: Evidence from three empirical studies. Sci Rep. 2020;10(1):1-12.

11. Solikhin AN, Suryani YD. Hubungan Antara Durasi Tidur dengan Memori Jangka Pendek Siswa Siswi SMP Darul Hikam Kota Bandung Tahun Ajaran 2015-2016. 2016;042:833-8.

12. Green S, Committee R, Chairperson C, Faculty E, Member C, Faculty E, et al. Effect of Sleep on Vigilance, Short-Term Memory, and Learning in College Students. 2013.

13. Chun MM, Turk-Browne NB. Interactions between attention and memory. Curr Opin Neurobiol. 2007;17(2):177-84.

14. Muzzio IA, Kentros C, Kandel E. What is remembered ? Role of attention on the encoding and retrieval of hippocampal representations. 2009;12:2837-54.

15. Paller KA, Voss JL. Memory reactivation and consolidation during sleep. Learn Mem. 2004;11(6):664-70.

16. Fatima Y, Doi SAR, Najman JM, Al Mamun A. Exploring gender difference in sleep quality of young adults: Findings from a large population study. Clin Med Res. 2016;14(3-4):138-44.

17. Kumar A. Development research. Int J Dev Res. 2014;4:1684-91.


  • There are currently no refbacks.

Copyright (c) 2020 Stevanie Budianto, Yusak M.T Siahaan

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

favicon Fakultas Kedokteran | Universitas Pelita Harapan | Lippo Karawaci, Tangerang, Indonesia, 15811