“…The observer’s task is to detect the direction of the coherent signal dots and the relative proportion of signal to noise in the stimulus can be varied to estimate a motion coherence threshold (the percentage of signal dots required for a particular level of task performance) (Newsome & Pare, 1988). It is well established that V5, a component of the dorsal stream, plays a central role in detecting coherent motion in RDKs (Cai, Chen, Zhou, Thompson, & Fang, 2014; Chen, Cai, Zhou, Thompson, & Fang, 2016; Newsome & Pare, 1988; Rudolph & Pasternak, 1999). However, the extent to which performance on a global motion task reflects the function of higher-level dorsal stream areas such as the posterior parietal cortex is unclear.…”