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Figure 1 | BMC Neuroscience

Figure 1

From: Elevated responses to constant facial emotions in different faces in the human amygdala: an fMRI study of facial identity and expression

Figure 1

Schematic display of the experimental design We used a 2 × 2 (facial identity × facial expression) factorial design with either constant/variable identity or constant/variable expression as factor levels. Each cell represents one condition in the experiment. Facial identity varied between 4 faces (2 male, 2 female), expressions varied between 5 facial emotions ranging from maximally fearful over neutral to maximally happy with moderately fearful and happy in between. Pictures were presented sequentially at 1 Hz (900 ms stimulus duration, 100 ms blank screen).

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