Tinnitus
Tinnitus is a phenomenon of
the nervous system connected
to the ear, characterised by
perception of a ringing or
beating sound (often
perceived as sinusoidal)
with no external source.
This sound may be a quiet
... > full story

Auditory system
The auditory system is the
sensory system for the sense
of hearing. The sound waves
enter the ear canal, a
simple tube (but one which
amplifies sounds that are
between 3 and 12 kHz). At
the far end of the ear canal
... > full story
Hearing impairment
A hearing impairment is a
decrease in one's ability to
hear (i.e. perceive auditory
information). While some
cases of hearing loss are
reversible with medical
treatment, many lead to a
permanent disability (often
... > full story
Sensory system
A sensory system is a part
of the nervous system
responsible for processing
sensory information. A
sensory system consists of
sensory receptors, neural
pathways, and parts of the
brain involved in sensory
... > full story
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Healthy Aging
Attention Deficit Disorder
Disorders and Syndromes
Sports Medicine
Perception
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Hallucination
A hallucination is a sensory perception experienced in the absence of an external stimulus, as distinct from an illusion, which is a misperception of an external stimulus. Hallucinations may occur in ... > more -
Psychophysics
Psychophysics is an interdisciplinary field occupying the intersection between cognitive psychology and experimental psychology and dealing with the relationship between physical stimuli and their ... > more -
Neurobiology
Neurobiology is the study of cells of the nervous system and the organization of these cells into functional circuits that process information and mediate behavior. It is a subdiscipline of both ... > more -
Traumatic brain injury
Traumatic brain injury (TBI), traumatic injuries to the brain, also called intracranial injury, or simply head injury, occurs when a sudden trauma causes brain damage. With mild TBI, the patient may ... > more -
Infant's Health
Parenting
Healthy Aging
Pregnancy and Childbirth
Attention Deficit Disorder
Birth Defects
Premature birth
Premature birth (also known as preterm birth) is defined medically as childbirth occurring earlier than 37 completed weeks of gestation. Most pregnancies last about 40 weeks. About 12 percent of ... > more -
Perception
Attention Deficit Disorder
Healthy Aging
Sports Medicine
Spirituality
Pregnancy and Childbirth
Synesthesia
Synesthesia (also spelled synæsthesia or synaesthesia, plural synesthesiae) is a neurological condition in which two or more bodily senses are coupled. In a form of synesthesia known as ... > more -
Hyperactivity
Hyperactivity can be described as a physical state in which a person is abnormally and easily excitable or exuberant. Strong emotional reactions, impulsive behavior, and a short span of attention are ... > more -
Developmental disability
Developmental disability is a term used to describe severe, life-long disabilities attributable to mental and/or physical impairments, manifested before the age of ... > more
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