Widespread dorsal stream activation during a parametric mental rotation task, revealed with functional magnetic resonance imaging

Katherine Podzebenko, Gary F Egan, John D G Watson
NeuroImage 2002, 15 (3): 547-58
Following a parametrically modulated mental rotation task, in which 10 healthy subjects were instructed to determine whether alphanumeric characters were normal or mirror-reversed, bilateral dorsal stream activations culminating in the intraparietal region were revealed with functional magnetic resonance imaging. Although the parietal activations were bilateral, we observed a right hemispheric dominance for the task, consistent with our previous findings (I. M. Harris et al., 2000). By studying individual activation maps in response to the paradigm, we discerned parcellation of the intraparietal region into discrete subdivisions. In this paper, we address the involvement of structures surrounding the intraparietal sulcus in mental rotation, as well as describing a wider visuospatial attentional network, encompassing neural substrates within the dorsal stream.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"