PT  - JOURNAL ARTICLE
AU  - Rodrigo Quian Quiroga
AU  - Lawrence H. Snyder
AU  - Aaron P. Batista
AU  - He Cui
AU  - Richard A. Andersen
TI  - Movement Intention Is Better Predicted than Attention in the Posterior Parietal Cortex
AID  - 10.1523/JNEUROSCI.3468-05.2006
DP  - 2006 Mar 29
TA  - The Journal of Neuroscience
PG  - 3615--3620
VI  - 26
IP  - 13
4099  - http://www.jneurosci.org/content/26/13/3615.short
4100  - http://www.jneurosci.org/content/26/13/3615.full
SO  - J. Neurosci.2006 Mar 29; 26
AB  - We decoded on a trial-by-trial basis the location of visual targets, as a marker of the locus of attention, and intentions to reach and to saccade in different directions using the activity of neurons in the posterior parietal cortex of two monkeys. Predictions of target locations were significantly worse than predictions of movement plans for the same target locations. Moreover, neural signals in the parietal reach region (PRR) gave better predictions of reaches than saccades, whereas signals in the lateral intraparietal area (LIP) gave better predictions of saccades than reaches. Taking together the activity of both areas, the prediction of either movement in all directions became nearly perfect. These results cannot be explained in terms of an attention effect and support the idea of two segregated populations in the posterior parietal cortex, PRR and LIP, that are involved in different movement plans.