BIOLOGICAL BASES OF BEHAVIOR
BIOLOGICAL PSYCHOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Intensity of emotional arousal to each of the 96 scenes presnted to each participant
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Woken up during REM or NREM sleep Woken up after 5 or 15 minutes
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Dreams recalled
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The situation (euphoria or anger)
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Detailed explanation-1: -Independent Variable (IV): Aim 1: REM or nREM sleep stage. Aim 2: waking after 5 or 15 minutes of REM sleep. Aim 3: eye-movement pattern type. Dependent Variable (DV): Aim 1: whether the participants reported a dream, and if so, the details.
Detailed explanation-2: -The conclusions that were reached by Dement and Kleitman have been replicated by many other researchers. However, there is one methodological issue that should be considered. In relation to the first research question, Dement and Kleitman conclude that dreaming takes place in REM rather then non-REM sleep.
Detailed explanation-3: -Dream narrative recorded on a tape recorder (to prevent researcher bias). They were asked if they had a dream or not, if they did, then they recorded it. Dream only counted if the recall was clear. Procedure 2-participants were woken up after either 5 or 15 mins.
Detailed explanation-4: -Dement and Kleitman used a repeated measures design when dream estimates where being done. The IV was whether the participant was woken during REM or nREM sleep.