"Once the brain has a goal in mind, it tunes the perceptual system to search the environment" for relevant clues, said Steven Sloman, a cognitive scientist at Brown University.
The aim of the current study was to directly compare both the accuracy and variability of predictive and explicit forms of perceptual timing to search for evidence of common underlying representations of time.
Sireteanu, R. & Rettenbach, R. Perceptual learning in visual search: fast, enduring but non-specific.
Allen, P. A., Makken, D. J., Groth, K. E. & Crozier, L. C. Impact of age, redundancy, and perceptual noise on visual search.
Levin, D. T. Race as a visual feature: Using visual search and perceptual discrimination tasks to understand face categories and the cross-race recognition deficit.
The phenomenon known as a perceptual set or a search image is exemplified by the predator of the European snail Cepaea.
In order to assess perceptual improvement in visual search performance, the sensitivity index to the target was measured as: <img src="http://journals.plos.org/plosone/article/asset?id=info?doi/10.1371/journal.pone.0019221.e003.PNG" class= inline-graphic"/> where z(H) and z(FA) correspond to the inverse of the normal distribution transform of H and FA respectively.
According to this idea, the increased perceptual complexity of visual search displays containing a salient distractor causes a need for perceptual resolution that completes prior to the deployment of attention.
Additionally, while adults and children show the same overall pattern of processing during early perceptual stages of visual search, this research should only be taken as a first step in understanding the underlying processes of visual search in children.
In addition, a shift was observed from a perceptual (occipital) system while searching for places to go, to a mnemonic (temporo-parietal, fronto-hippocampal) system for remembering what actions to perform after TD.
