Dement and Kleitman (1957): Sleep and Dreams

Schachter and Singer (1962): Two Factors in Emotion

Psychology Investigated: The link between the amygdala and emotions.

Background: The amygdala is a brain structure associated with processing emotions, particularly fear and anxiety.

Aim: To investigate the relationship between amygdala activation and emotional memory.

Procedure: Participants viewed a series of emotionally evocative images while undergoing functional magnetic resonance imaging (fMRI).

Researchers measured the level of amygdala activation associated with each image.

One week later, participants were asked to recall the images.

The study used an independent measures design.

Sample: 10 healthy adults.

Sampling Technique: Not specified.

Controls: Not specified.