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Search Results for "Visual Adaptation And Face Perception"

04:41 EDT 29th July 2014 | BioPortfolio

Original Source: Visual adaptation and face perception.

The appearance of faces can be strongly affected by the characteristics of faces viewed previously. These perceptual after-effects reflect processes of sensory adaptation that are found throughout the visual system, but which have been considered only relatively recently in the context of higher level perceptual judgements. In this review, we explore the consequences of adaptation for human face perception, and the implications of adaptation for understanding the neural-coding schemes underlying the visual...

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Visual field defects

Visual field testing

Visual acuity

Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. Visu...

Tinnitus

Tinnitus causes people to hear constant sounds in one ear, both ears or in their head. Tinnitus is the medical name for the perception of noise in one ear, both ears or in the head. The noise comes...

Cleft Palate and Cleft Lip

Cleft means 'split' or 'separation', and in Cleft Palate and Lip, the palate and lip are split respectively. This occurs as a congenital abnormality because during development in the...

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Seeing is a matter of experience: Visual perception for faces, letters similar

Faces are of tremendous importance for human beings. That's why in the course of the evolution our visual perception has specialized in the recognition of faces in particular. Until now researchers as...

Seeing is a matter of experience

(Friedrich-Schiller-Universitaet Jena) Faces are of tremendous importance for human beings. That's why in the course of the evolution our visual perception has specialized in the recognition of faces...

Neuroscientists discover adaptation mechanisms of the brain when perceiving letters of the alphabet

The headlights – two eyes, the radiator cowling – a smiling mouth: This is how our brain sometimes creates a face out of a car front. The same happens with other objects: in house facades, trees o...

Serial dependence in visual perception

Visual input is often noisy and discontinuous, even though the physical environment is generally stable. The authors show that the visual system trades off change sensitivity to capitalize on physical...

Key brain region responds to subjective perception in study of individual neuron activity

When evaluating another person’s emotions – happy, sad, angry, afraid – humans take cues from facial expressions. Neurons in a part of the brain called the amygdala “fire” in response to the...

New therapy helps to improve audio and visual perception in stroke patients

(Saarland University) Stroke is one of the most common neurological disorders worldwide. Many stroke survivors are left with serious health problems. Some patients, for example, find themselves unable...

In study of individual neuron activity, key brain region responds to subjective perception

LOS ANGELES (June 30, 2014) – When evaluating another person's emotions – happy, sad, angry, afraid – humans take cues from facial expressions. Neurons in a part of the brain called the amygdala...

Activity more than location affects perception of earthquakes

A new study by Italian researchers suggests that a person's activity at the time of the quake influences their perception of shaking more than their location. Whether a person is at rest or walking pl...

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Interactions between concentric form-from-structure and face perception revealed by visual masking but not adaptation.

Findings from diverse subfields of vision research suggest a potential link between high-level aspects of face perception and concentric form-from-structure perception. To explore this relationship, t...

Imagining sex and adapting to it: Different aftereffects after perceiving versus imagining faces.

A prolonged exposure (i.e., perceptual adaptation) to a male or a female face can produce changes (i.e., aftereffects) in the subsequent gender attribution of a neutral or average face, so that it app...

Afterimage induced neural activity during emotional face perception.

The N170 response differs when positive versus negative facial expressions are viewed. This neural response could be associated with the perception of emotions, or some feature of the stimulus. We use...

Noise and adaptation in multistable perception: Noise drives when to switch, adaptation determines percept choice.

We study the dynamics of perceptual switching in ambiguous visual scenes that admit more than two interpretations/percepts to gain insight into the dynamics of perceptual multistability and its underl...

Neural mechanism of dynamic responses of neurons in inferior temporal cortex in face perception.

Understanding the neural mechanisms of object and face recognition is one of the fundamental challenges of visual neuroscience. The neurons in inferior temporal (IT) cortex have been reported to exhib...

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