A personality researcher measures which part of the brain is triggered by the sight of snakes in those individuals who have a phobia of snakes by placing each individual's head in a scanning device that assesses the amount of blood oxygen flow in brain cells in different locations of the brain and then produces a digital image of the brain featuring different colors for varying degrees of oxygen flow. This researcher is using a(n)

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The researcher is using a functional magnetic resonance imaging (fMRI) technique, which measures brain activity by detecting changes in blood oxygen levels, producing images with different colors indicating varying degrees of oxygen flow.

A Personality Researcher Measures Which Part of the Brain Is