Three experiments were conducted using a task of direction pointing.
It was found that given a relatively stable intrinsic reference direction, responses to a small number of salient objects were faster than responses to non-salient objects (Experiment 1 and Experiment 3).
Spatial updating is one of the neural mechanisms that contributes to this perception of spatial constancy.
Previous studies in macaque lateral intraparietal cortex (area LIP) have shown that individual neurons update, or "remap," the locations of salient visual stimuli at the time of an eye movement.
Our results indicate that spatial updating in the intrinsic reference system can be easy only if a fixed reference direction is maintained and the number of objects that need to be tracked is limited. TY - JOURT1 - Prioritized spatial updating in the intrinsic frame of reference AU - Wang, Hongbin AU - Sun, Yanlong AU - Johnson, Todd R.
The present study investigates the properties of spatial updating in the intrinsic frame of reference, where spatial relations are represented with respect to an external object (other than the viewer self) with an intrinsic reference direction.The existence of remapping implies that neurons have access to visual information from regions far beyond the classically defined receptive field.We hypothesized that neurons have access to information located anywhere in the visual field.In cognitive psychology and neuroscience, spatial memory is the part of memory responsible for recording information about one's environment and spatial orientation.For example, a person's spatial memory is required in order to navigate around a familiar city, just as a rat's spatial memory is needed to learn the location of food at the end of a maze.