Dissociation between Ventral and Dorsal fMRI Activation during Object and Action Recognition
Open accessAbstract
Neuropsychological case studies suggest the existence of two functionally separate visual streams: the ventral pathway, central for object recognition; and the dorsal pathway, engaged in visually guided actions. However, a clear dissociation between the functions of the two streams has not been decisively shown in intact humans. In this study, we demonstrate dissociation between dorsal and ventral fMRI activation patterns during observation of object manipulation video clips. Parietal areas, such as anterior intraparietal sulcus (aIPS) display grasp viewing-dependent adaptation (i.e., fMR adaptation during repeated viewing of the same object-grasping movement) as well as a contralateral preference for the viewed manipulating hand. Ventral regions, such as the fusiform gyrus, show similar characteristics (i.e., adaptation, contralateral preference), but these depend on object identity. Our results support the hypothesized functional specialization in the visual system and suggest that parietal areas (such as aIPS) are engaged in action recognition, as well as in action planning.
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References 28 · Cited by 227
- Authors
- Shmuelof, L., & Zohary, E.
- Affiliations
- Hebrew University of Jerusalem (IL)
- Corresponding author
- Zohary, Ehud
- Venue
- Neuron
- Publisher
- Elsevier BV
- Published
- 2005-08
- Volume
- 47
- Issue
- 3
- Pages
- 457-470
- ISSN
- 0896-6273 (ISSN-L)
- OpenAlex
- W2108506459
- Cited by
- 227
- References
- 28
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 7 · 2023: 6 · 2022: 6 · 2021: 6 · 2020: 8 · 2019: 5 · 2018: 6 · 2017: 9 · 2016: 12 · 2015: 19 · 2014: 10 · 2013: 18 · 2012: 13
- FWCI
- 23.38
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Neuron (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Social Psychology › Action Observation and Synchronization
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
- Keywords
- ventral stream, dorsal stream, object recognition, human action recognition, anterior intraparietal sulcus, fusiform gyrus, action planning
- MeSH terms
- Adult, Brain Mapping, Cerebral Cortex, Female, Hand, Humans, Magnetic Resonance Imaging, Male, Pattern Recognition, Visual, Visual Pathways, Hand Strength
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