There are several

psychological Psychology is the scientific study of mind and behavior. Psychology includes the study of conscious and unconscious phenomena, including feelings and thoughts. It is an academic discipline of immense scope, crossing the boundaries between t ...

and

physiological Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical ...

effects that cause blindness to some visual stimulus. * Banner blindness or ad blindness, consciously or subconsciously ignoring banner-like advertisements at web pages. *

Change blindness Change blindness is a perceptual phenomenon that occurs when a change in a visual stimulus is introduced and the observer does not notice it. For example, observers often fail to notice major differences introduced into an image while it flickers ...

, the inability to detect some changes in busy scenes. *

Choice blindness The introspection illusion is a cognitive bias in which people wrongly think they have direct insight into the origins of their mental states, while treating others' introspections as unreliable. The illusion has been examined in psychological ex ...

, a result in a perception experiment by Petter Johansson and colleagues. * Color blindness, a color vision deficiency. * Cortical blindness, a loss of vision caused by damage to the visual area in the brain. * Flash blindness, a visual impairment following exposure to a light flash. * Hysterical blindness (nowadays known as

conversion disorder Conversion disorder (CD), or functional neurologic symptom disorder, is a diagnostic category used in some psychiatric classification systems. It is sometimes applied to patients who present with neurological symptoms, such as numbness, blindness ...

), the appearance of neurological symptoms without a neurological cause. *

Inattentional blindness Inattentional blindness or perceptual blindness (rarely called ''inattentive blindness'') occurs when an individual fails to perceive an unexpected stimulus in plain sight, purely as a result of a lack of attention rather than any vision defects o ...

or perceptual blindness, failing to notice some stimulus that is in plain sight. * Motion blindness, a neuropsychological disorder causing an inability to perceive motion.

See also