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Related Concept Videos

Prosopagnosia01:24

Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
Visual Agnosia01:12

Visual Agnosia

Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

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Related Experiment Video

Updated: May 16, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
08:31

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome

Published on: July 31, 2016

A life with prosopagnosia.

David Roger Fine1

  • 1Clinical and Experimental Sciences, Clinical Medicine, University of Southampton, Southampton, UK. davidrfine@gmail.com

Cognitive Neuropsychology
|November 29, 2012
PubMed
Summary

Developmental prosopagnosia (DP), or face-blindness, presents lifelong challenges. This personal account details coping strategies and the positive impact of explaining DP to others for improved social interactions.

Area of Science:

  • Neuroscience
  • Psychology
  • Human Behavior

Background:

  • Developmental prosopagnosia (DP) is a neurological condition characterized by the inability to recognize faces.
  • Individuals with DP often develop compensatory strategies to navigate social interactions.
  • Late diagnosis is common, with many individuals unaware of their condition until adulthood.

Purpose of the Study:

  • To provide a personal, anecdotal account of living with developmental prosopagnosia.
  • To illustrate the long-term impact of DP on various life stages and social interactions.
  • To highlight the effectiveness of explaining DP to others to improve communication.

Main Methods:

  • The study employs a retrospective, first-person narrative approach.
  • It details the author's lifelong experiences from infancy through adulthood.

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A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
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Last Updated: May 16, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
08:31

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome

Published on: July 31, 2016

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
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A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

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  • Compensatory strategies for person recognition are described, focusing on non-facial cues and context.

    • Main Results:

    • The author was diagnosed with DP at age 53, having developed complex recognition strategies.
    • Despite challenges in social and work life, the author considers his life full and successful.
    • Explaining the condition to others led to positive and helpful reactions, improving interactions.

    Conclusions:

    • Developmental prosopagnosia can significantly impact social and professional life, even with compensatory strategies.
    • Open communication about DP can foster understanding and mitigate social difficulties.
    • Individuals can lead fulfilling lives while managing the effects of face-blindness.