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Ventral and dorsal stream contributions to the online control of immediate and delayed grasping: a TMS approach.
Neuropsychologia. 2009 May; 47(6):1553-62.N

Abstract

According to Milner and Goodale's theory of the two visual streams, the dorsal (action) stream controls actions in real-time, whereas the ventral (perceptual) stream stores longer-term information for object identification. By this account, the dorsal stream subserves actions carried out immediately. However, when a delay is required before the response, the ventral (perceptual) stream is recruited. Indeed, a neuroimaging study from our lab has found reactivation of an area within the ventral stream, the lateral occipital (LO) cortex, at the time of action even when no visual stimulus was present. To tease apart the contribution of specific areas within the dorsal and ventral streams to the online control of grasping under immediate and delayed conditions, we used transcranial magnetic stimulation (TMS) to the anterior intraparietal sulcus (aIPS) and to LO. We show that while TMS to aIPS affected grasp under both immediate and delayed conditions, TMS to LO influenced grasp only under delayed movement conditions. The effects of TMS were restricted to early movement kinematics (i.e. within 300 ms) due to the transient nature of TMS, which was always delivered simultaneous with movement onset. We discuss the implications of our findings in relation to interactions between the dorsal and ventral streams.

Authors+Show Affiliations

Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH 03755, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19168086

Citation

Cohen, Nichola Rice, et al. "Ventral and Dorsal Stream Contributions to the Online Control of Immediate and Delayed Grasping: a TMS Approach." Neuropsychologia, vol. 47, no. 6, 2009, pp. 1553-62.
Cohen NR, Cross ES, Tunik E, et al. Ventral and dorsal stream contributions to the online control of immediate and delayed grasping: a TMS approach. Neuropsychologia. 2009;47(6):1553-62.
Cohen, N. R., Cross, E. S., Tunik, E., Grafton, S. T., & Culham, J. C. (2009). Ventral and dorsal stream contributions to the online control of immediate and delayed grasping: a TMS approach. Neuropsychologia, 47(6), 1553-62. https://doi.org/10.1016/j.neuropsychologia.2008.12.034
Cohen NR, et al. Ventral and Dorsal Stream Contributions to the Online Control of Immediate and Delayed Grasping: a TMS Approach. Neuropsychologia. 2009;47(6):1553-62. PubMed PMID: 19168086.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ventral and dorsal stream contributions to the online control of immediate and delayed grasping: a TMS approach. AU - Cohen,Nichola Rice, AU - Cross,Emily S, AU - Tunik,Eugene, AU - Grafton,Scott T, AU - Culham,Jody C, Y1 - 2009/01/06/ PY - 2008/04/21/received PY - 2008/12/12/revised PY - 2008/12/21/accepted PY - 2009/1/27/entrez PY - 2009/1/27/pubmed PY - 2009/7/31/medline SP - 1553 EP - 62 JF - Neuropsychologia JO - Neuropsychologia VL - 47 IS - 6 N2 - According to Milner and Goodale's theory of the two visual streams, the dorsal (action) stream controls actions in real-time, whereas the ventral (perceptual) stream stores longer-term information for object identification. By this account, the dorsal stream subserves actions carried out immediately. However, when a delay is required before the response, the ventral (perceptual) stream is recruited. Indeed, a neuroimaging study from our lab has found reactivation of an area within the ventral stream, the lateral occipital (LO) cortex, at the time of action even when no visual stimulus was present. To tease apart the contribution of specific areas within the dorsal and ventral streams to the online control of grasping under immediate and delayed conditions, we used transcranial magnetic stimulation (TMS) to the anterior intraparietal sulcus (aIPS) and to LO. We show that while TMS to aIPS affected grasp under both immediate and delayed conditions, TMS to LO influenced grasp only under delayed movement conditions. The effects of TMS were restricted to early movement kinematics (i.e. within 300 ms) due to the transient nature of TMS, which was always delivered simultaneous with movement onset. We discuss the implications of our findings in relation to interactions between the dorsal and ventral streams. SN - 1873-3514 UR - https://www.unboundmedicine.com/medline/citation/19168086/Ventral_and_dorsal_stream_contributions_to_the_online_control_of_immediate_and_delayed_grasping:_a_TMS_approach_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0028-3932(08)00502-2 DB - PRIME DP - Unbound Medicine ER -