Examining the top-down component of perceptual learning
نویسندگان
چکیده
منابع مشابه
Top-down modulation of sensory cortex gates perceptual learning.
Practice sharpens our perceptual judgments, a process known as perceptual learning. Although several brain regions and neural mechanisms have been proposed to support perceptual learning, formal tests of causality are lacking. Furthermore, the temporal relationship between neural and behavioral plasticity remains uncertain. To address these issues, we recorded the activity of auditory cortical ...
متن کاملPerceptual Learning via Modification of Cortical Top-Down Signals
The primary visual cortex (V1) is pre-wired to facilitate the extraction of behaviorally important visual features. Collinear edge detectors in V1, for instance, mutually enhance each other to improve the perception of lines against a noisy background. The same pre-wiring that facilitates line extraction, however, is detrimental when subjects have to discriminate the brightness of different lin...
متن کاملthe impact of explicit instruction of top-down reading strategies on reading comprehension of intermediate efl learners
this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...
ERP C1 is top-down modulated by orientation perceptual learning.
The brain site of perceptual learning has been frequently debated. Recent psychophysical evidence for complete learning transfer to new retinal locations and orientations/directions suggests that perceptual learning may mainly occur in high-level brain areas. Contradictorily, ERP C1 changes associated with perceptual learning are cited as evidence for training-induced plasticity in the early vi...
متن کاملMechanisms for Top - down Perceptual Processing
If we are to understand how human perception occurs, then we must first identify the mechanisms that drive perception. It is commonly believed that perception is influenced by both bottom-up processes (raw sensory input), and top-down processes (expectationdriven matching). What is not fully understood is how the human mind uses expectations and assumptions to manipulate what we call conscious ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Vision
سال: 2005
ISSN: 1534-7362
DOI: 10.1167/5.8.862