Dement & Kleitman Study Guide - AICE Psych Midterm 2022

Sleep and dreams study.

Aims

Overall, to investigate dreaming by observing the relationship between eye movement during sleep and dream recall.

Specifically…:

* To see if eye movement correlated with dream content
* To see if dream recall differs between REM and nREM sleep
* To see if dreamers could accurately estimate the amount of time they were in REM sleep.

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EEG Purpose

Measured brain waves/activation during different stages of P’s sleep.

Stages of nREM Sleep

* Stages 1 + 2 = Asleep
* Light sleep, theta waves
* Stages 3 + 4 = Deeper Sleep
* Delta waves, difficult to wake someone.

Research Design

* Repeated Measures
* Included Self Reports (P’s dream narrative)

Sample

* 9 adults
* 7 male, 2 female
* 5 studied in detail. The remain 4’s results were used to confirm those of the main 5.
* Limited generalizability

Results of Predicting REM Length (5 minutes vs. 15 minutes)

* P’s performed very well!
* High accuracy
* Dream narrative (self report) word count matched the duration of time that the P was in REM sleep.
* For example, P’s woken after 5 minutes of REM sleep had a shorter dream narrative.
* P’s woken after 15 minutes of REM sleep had a longer dream narrative