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Transcript of Dream Brains
Right cerebral hemisphere receives sensory input from and directs movement on the left side of the body
Left hemisphere governs corresponding functions for the right side.
In recent years, the two sides of the brain have come to symbolize two sides of human nature Importance of
Left-Brain Right-Brain Theory Everyone uses both sides of their brain, but understanding your strengths and weaknesses in certain areas can help you develop better ways to learn and study. University of Iowa Research, 2003: 193 college students recorded each morning for 14 weeks:
time they woke up
time they had gone to bed the previous night,
whether they had consumed alcohol or caffeine within 4 hours of bedtime
whether they remembered any dreams upon waking. Conclusion: People who are creative, imaginative and prone to fantasy are more likely to have vivid dreams at night and to remember them when they wake up Is there really a significant difference in dream recall between those who are more left-brained and those who are more right-brained? Sample: Population: 40,000 students in Intro to Psychology course
Sample: 400 students randomly selected using Digital Labcoat
How often do you remember your dreams?
Would you say you are more left-brained (ie. analytical, logical) or right-brained (creative, emotional)? Survey Two randomly selected groups, 200 each:
Always or usually remember
Never remember Compared the brains of both of these groups Data: Always or Usually Remember
St Dev= 1.627 Never Remember
St Dev= 1.625 T-test Ho: There is no difference between the brain tendencies of those who can remember their dreams and those who cannot.
Ha: There is a difference between the brain tedencies of those who can remember their dreams and those who cannot. Assumptions and Conditions: Two-Sample The two samples of students are both randomly selected
400 students is less than 10% of the 40,000 students
Both histograms of brain tendency toward left and right are uniform and nearly normal. P-value is extremely low, so we can reject our null hypothesis. The evidence supports that there is a difference in dream recall between those who tend toward left-brainedness and those who tend toward right-brainedness.