In the past studies had proved thatpeople who slept for a night perform better on a visual texture-differentiatingtest than people who do immediately after learning it.
Mednick et al studiesrevealed that people who took 60 to 90 minutes of nap perform equally well withpeople who slept full night. (Mednickand colleagues, Nature Neuroscience, 2003). A daytime nap can bring advantages to a various memory domain.In one latest study shows the ability to bring back memories in volunteers wholearned single words as well as random word combinations. 50% of the volunteernap for 1.5 hours while the other 50% of them stayed awake. Both groups arethen tested, and the result showed that volunteers who napped recalled moreword combinations substantially.
This type of “associative memory” is dependenton hippocampus function which can be enhanced by naps. (Mecklinger ,Neurobiology of Learning and Memory 2015).According to Mednick, a short napworks like a dose of caffeine in enhancing learning capabilities. She realizedindividuals who took a nap shows better performance on a verbal-word recalltask rather than those who consumed caffeine. (Behavioural Brain Research, 2008).
Performance, emotion and reaction timeincreases with the length of napping time. An 8-hour nap is best in sustainingthe three aspects as compared to consuming caffeine. Overall, daytime nap helps in maintaininghigher productivity in the comparison to caffeine which loss its power in 6hours. (Michael H.
Bonnet et al 1995) According to Gauri Sarda-Joshi, a social psychologist,short naps improved the feeling of welfare, mood and energy levels incomparison to those who does not have afternoon nap. They are more energizedand feel less distress after the naps. A study done by University of Michiganshowed that people who took an hour nap are less impetuous and more tolerate tofrustration compared to those who watch nature documentary for an hour. (Personality and Individual Differences,2015).