摘要：Studying changes in brain activation according to the valence of emotion-inducing stimuli isessential in the research on emotions. Due to the ecological potential of virtual reality, it isalso important to examine whether brain activation in response to emotional stimuli can bemodulated by the three-dimensional (3D) properties of the images. This study usesfunctional Magnetic Resonance Imaging to compare differences between 3D and standard(2D) visual stimuli in the activation of emotion-related brain areas. The stimuli wereorganized in three virtual-reality scenarios, each with a different emotional valence(pleasant, unpleasant and neutral). The scenarios were presented in a pseudo-randomizedorder in the two visualization modes to twelve healthy males. Data were analyzed through aGLM-based fixed effects procedure. Unpleasant and neutral stimuli activated the rightamygdala more strongly when presented in 3D than in 2D. These results suggest that 3Dstimuli, when used as “building blocks” for virtual environments, can induce increasedemotional loading, as shown here through neuroimaging.
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