[HTML][HTML] View from the top: Hierarchies and reverse hierarchies in the visual system

S Hochstein, M Ahissar - Neuron, 2002 - cell.com
We propose that explicit vision advances in reverse hierarchical direction, as shown for
perceptual learning. Processing along the feedforward hierarchy of areas, leading to …

Visual perceptual learning and models

B Dosher, ZL Lu - Annual review of vision science, 2017 - annualreviews.org
Visual perceptual learning through practice or training can significantly improve
performance on visual tasks. Originally seen as a manifestation of plasticity in the primary …

Mechanisms of top-down attention

F Baluch, L Itti - Trends in neurosciences, 2011 - cell.com
Attention exhibits characteristic neural signatures in brain regions that process sensory
signals. An important area of future research is to understand the nature of top-down signals …

Task difficulty and the specificity of perceptual learning

M Ahissar, S Hochstein - Nature, 1997 - nature.com
Practising simple visual tasks leads to a dramatic improvement in performing them. This
learning is specific to the stimuli used for training. We show here that the degree of …

Practising orientation identification improves orientation coding in V1 neurons

A Schoups, R Vogels, N Qian, G Orban - Nature, 2001 - nature.com
The adult brain shows remarkable plasticity, as demonstrated by the improvement in fine
sensorial discriminations after intensive practice. The behavioural aspects of such …

Random noise stimulation improves neuroplasticity in perceptual learning

A Fertonani, C Pirulli, C Miniussi - Journal of Neuroscience, 2011 - Soc Neuroscience
Perceptual learning is considered a manifestation of neural plasticity in the human brain. We
investigated brain plasticity mechanisms in a learning task using noninvasive transcranial …

[HTML][HTML] The neural basis of perceptual learning

CD Gilbert, M Sigman, RE Crist - Neuron, 2001 - cell.com
Perceptual learning is a lifelong process. We begin by encoding information about the basic
structure of the natural world and continue to assimilate information about specific patterns …

Perceptual learning and top-down influences in primary visual cortex

W Li, V Piëch, CD Gilbert - Nature neuroscience, 2004 - nature.com
Neuronal responses at early stages in visual cortical processing, including those in primary
visual cortex (V1), are subject to the influences of visual context, experience and attention …

Pax6 is required for differentiation of glucagon-producing α-cells in mouse pancreas

L St-Onge, B Sosa-Pineda, K Chowdhury, A Mansouri… - Nature, 1997 - nature.com
The functional unit of the endocrine pancreas is the islet of Langerhans. Islets are nested
within the exocrine tissue of the pancreas and are composed of α-, β-, δ-and γ-cells1. β …

Direction-specific improvement in motion discrimination.

K Ball, R Sekuler - Vision research, 1987 - europepmc.org
With training, an observer's ability to discriminate similar directions of motion gradually
improves. A series of studies reveals that this improvement,(1) is restricted to the trained …