Czeisler et al (1990)

Question 1

aim

Answer 1

czeisler aimed to figure out the effect of light on sleep in night shift workers

Question 2

procedure

Answer 2

control group was in normal conditions, experimental group was exposed to high light

Question 3

results

Answer 3

experimental group experienced better circadian rhythms as shown by their body temp and mood

Question 4

conclusion

Answer 4

increased light exposure had a good effect on the circadian rhythm for night shift workers

Question 5

links

Answer 5

night shift working is bad for mood and memory. but this shows the importance of light as a factor

Question 6

implications

Answer 6

circadian rhythm sleep disorders

Question 7

compare

Answer 7

lockley (2010). after 6.5 hours of blue light exposure, circadian rhythm had shifted 3 hours, compared to 1.5 with green light. use of devices in daytime is bad

Question 8

strengths

Answer 8

lab experiment so easy to control

Question 9

weakness

Answer 9

small sample, unethical, gender bias