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  2. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Color blindness is any deviation of color vision from normal trichromatic color vision (often as defined by the standard observer) that produces a reduced gamut. Mechanisms for color blindness are related to the functionality of cone cells , and often to the expression of photopsins , the photopigments that 'catch' photons and thereby convert ...

  3. Magnetic resonance microscopy - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_microscopy

    MRM employs a much stronger magnetic field, which is conducted on a much smaller scale. [5] Resolution: Medical MRI resolution is typically about 1 mm; the desired resolution of MRM is 100 μm or smaller to 10 μm, comparable with histology. Specimen size: Medical MRI machines are designed so that a patient may fit inside.

  4. Achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Achromatopsia

    Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy.Historically, the name referred to monochromacy in general, but now typically refers only to an autosomal recessive congenital color vision condition.

  5. Color blind (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Color_blind_(disambiguation)

    Congenital red-green color blindness, the genetic condition that causes the most cases of color blindness. Dichromacy, a type of color vision possessed by most mammals; partial color blindness when in humans. Monochromacy, a lack of color vision; total color blindness when in humans. Achromatopsia, a syndrome that includes total color blindness.

  6. Magnetic resonance imaging - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_imaging

    Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to form images of the organs in the body.

  7. Monochromacy - Wikipedia

    en.wikipedia.org/wiki/Monochromacy

    Monochromacy (from Greek mono, meaning "one" and chromo, meaning "color") is the ability of organisms to perceive only light intensity without respect to spectral composition. Organisms with monochromacy lack color vision and can only see in shades of grey ranging from black to white. Organisms with monochromacy are called monochromats.

  8. Cerebral achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Cerebral_achromatopsia

    Cerebral achromatopsia is a type of color blindness caused by damage to the cerebral cortex of the brain, rather than abnormalities in the cells of the eye's retina.It is often confused with congenital achromatopsia but the underlying physiological deficits of the disorders are completely distinct.

  9. Glossary of psychiatry - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_psychiatry

    Achromatopsia is a term referring to or acquired agnosia for color. This term includes color blindness. Achromatopsia is a condition characterized by a partial or total absence of color vision. People with complete achromatopsia cannot perceive any colors; they see only black, white, and shades of gray.