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Article: Interactions between the dorsal and the ventral pathways in mental rotation: An fMRI study
- Article from:
- Cognitive, Affective and Behavioral Neuroscience
- Article date:
- March 1, 2005
- Author:
CopyrightCopyright Psychonomic Society, Inc. Mar 2005. Provided by ProQuest LLC. (Hide copyright information)
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In this fMRI study, we examined the relationship between activations in the inferotemporal region (ventral pathway) and the parietal region (dorsal pathway), as well as in the prefrontal cortex (associated with working memory), in a modified mental rotation task. We manipulated figural complexity (simple vs. complex) to affect the figure recognition process (associated with the ventral pathway) and the amount of rotation (0° vs. 90°), typically associated with the dorsal pathway. The pattern of activation not only showed that both streams are affected by both manipulations, but also showed an overadditive interaction. The effect of figural complexity was greater for 90° rotation than for ...