Auditory Steady State Response: From 1 Different Sources
(ASSR) an objective test of hearing that measures the electrical activity in the auditory nerve and *brainstem following sound stimulation using a modulated continuous tone.
See VESTIBULOCOCHLEAR NERVE.... auditory nerve
Long-term unconsciousness caused by damage to areas of the brain that control higher mental functions. The eyes may open and close, and there may be random movements of the limbs, but there is no response to stimuli such as pain. Basic functions such as breathing and heartbeat are not affected. There is no treatment to reverse the situation, but, with good nursing care, survival for months or years is possible.... persistent vegetative state
See NEUROSIS.... anxiety state
The number of completed or returned survey instruments (questionnaires, interviews, etc) divided by the total number of persons who would have been surveyed if all had participated. Usually expressed as a percentage.... response rate
Major government schemes to ensure adequate health services to substantial sectors of the community through direct provision of services.... state medicine (health care systems)
Stimulation of the retina of the EYE with light causes changes in the electrical activity of the cerebral cortex (see BRAIN). These changes can be measured from outside the skull and can give valuable information about the state of the visual pathway from the retinal ganglion cells to the occipital cortex. Not only can it determine that function is normal, it can also help to diagnose some causes of poor VISION.... visual evoked response
Arousal of the sympathetic part of the autonomic nervous system in response to fear but which also occurs in anxiety disorders. Adrenaline (epinephrine), noradrenaline (norepinephrine), and other hormones are released from the adrenal glands and nervous system, leading to a raised heart-rate, pupil dilation, and increased blood flow to the muscles. These effects make the body more efficient in either fighting or fleeing the apparent danger.... fight-or-flight response
adj. relating to the ear or to the sense of hearing.... auditory
(ABR audiometry, brainstem evoked response audiometry, BSER) an objective test of hearing that measures the electrical activity in the auditory nerve and *brainstem following sound stimulation using repeated clicks or brief tones.... auditory brainstem response audiometry
a device similar to a *cochlear implant except that the electrode stimulates the auditory parts of the *brainstem rather than the cochlea. It is used to restore hearing of profoundly deaf people who have had damage to both auditory nerves and are hence unsuitable for cochlear implantation. It consists of an electrode that is permanently implanted on the surface of the brainstem. An external device with a microphone and an electronic processing unit pass information to the electrode using radio-frequency waves. The implant is powered by batteries in the external part of the device. It is most commonly used in patients with *neurofibromatosis type II who have had bilateral *vestibular schwannomas.... auditory brainstem implant
(auditory meatus) the canal leading from the pinna to the eardrum.... auditory canal
see auditory neuropathy spectrum disorder.... auditory dyssynchrony
(auditory neuropathy, auditory dyssynchrony) a form of hearing loss characterized by normal cochlear function as measured by *otoacoustic emissions or detection of *cochlear microphonics but abnormal or absent *middle ear reflexes and abnormal *auditory brainstem responses.... auditory neuropathy spectrum disorder
(APD, central auditory processing disorder, CAPD) a series of conditions characterized by difficulty in hearing and processing auditory information, especially in poor acoustic environments, despite normal or near-normal ear function. It may be due to genetic factors, maturational delay in the central nervous system, or focal abnormalities of the central nervous system (such as tumours). Treatments include *hearing therapy, *auditory skills training, educational support, use of *assistive listening devices, and training with computerized therapy tools.... auditory processing disorder
a method of teaching people to use their hearing to its best potential, undertaken in the treatment of *auditory processing disorder.... auditory skills training
(AVT) a technique for teaching deaf children to communicate that focuses on speech and residual hearing rather than sign language.... auditory verbal therapy
(BRM) a therapeutic agent, such as *interferon or *interleukin, that influences the body’s defence mechanisms to act against infection and disease. In small amounts, these substances are produced naturally by the body; larger doses have been genetically developed for use against rheumatoid arthritis, hepatitis, and cancer (especially melanoma and renal cancer).... biological response modifier
see auditory brainstem response audiometry.... brainstem evoked response audiometry
see auditory processing disorder.... central auditory processing disorder
(CHAPS) a questionnaire designed to assess children’s hearing abilities in certain situations. It is used in the diagnosis of *auditory processing disorder.... children’s auditory performance scale
(CERA) an objective test of hearing that measures the electrical activity in the *cerebral cortex following sound stimulation.... cortical evoked response audiometry
... immuno- combining form denoting immunity or immunological response.
(MSE) a full psychiatric examination of signs and symptoms, which takes place during a psychiatric interview and should apply only to signs and symptoms elicited at that time; it should not take into account historical information. The examination is usually divided into the following subheadings: appearance and behaviour, speech, mood, *affect, thought and perception, *insight, and orientation. Usually it also includes a *risk assessment.... mental state examination
(MCS) a disorder of consciousness distinct from *persistent vegetative state (PVS) and locked-in syndrome (see vegetative state). Unlike PVS, patients with MCS have partial preservation of conscious awareness although the level of awareness frequently fluctuates over time.... minimally conscious state
(MMSE) a brief 30-point questionnaire that is used to screen for cognitive impairment in the diagnosis of dementia. It is also used to estimate the severity of cognitive impairment and to follow the course of cognitive changes in an individual over time, thus making it an effective way to document response to treatment. It tests functions including arithmetic, memory, and orientation.... mini-mental state examination
a state of disordered mood that combines elements of *mania and *depression; it is a common feature of *bipolar affective disorder. Symptoms include overactivity, flight of ideas, depressed mood, and suicidal *ideation.... mixed affective state
(HHS) a state of extreme hyperglycaemia seen in type 2 diabetes accompanied by dehydration that can be severe, typically triggered by illness in a patient with type 2 diabetes or a patient with previously unknown type 2 diabetes. It was previously known as hyperosmolar non-ketotic hyperglycaemia (HONK). Emergency hospital treatment is required to control blood glucose levels and to treat the dehydration and the underlying precipitating cause. There is a significant mortality, especially in the elderly and patients with other disorders (e.g. vascular disease). While insulin is required as part of the initial emergency treatment, the patient often does not need insulin in the longer term, when well.... hyperosmolar hyperglycaemic state
(OAD, King–Kopetzky syndrome) hearing difficulty, especially in noisy environments, in an individual with a normal *audiogram: a form of *auditory processing disorder. Treatment includes *hearing therapy.... obscure auditory dysfunction
n. the way in which the body or part of the body reacts to a *stimulus. For example, a nerve impulse may produce the response of a contraction in a muscle that the nerve supplies.... response
a form of *behaviour therapy given for severe *obsessions. Patients are encouraged to abstain from rituals and repetitive acts while they are in situations that arouse anxiety. For example, a hand-washing ritual might be treated by stopping washing while being progressively exposed to dirt. The anxiety then declines, and with it the obsessions.... response prevention
see shock.... systemic inflammatory response
the clinical condition of unawareness of the self or the environment. The patient breathes spontaneously and has a stable circulation and sleep/wake cycles. It results from extensive damage to the cerebral cortex and thalamus while the brainstem and hypothalamus remain intact. The commonest causes are traumatic brain injury (e.g. road-traffic accidents) and cardiopulmonary arrest. Conditions that mimic the vegetative state include the psychiatric state of *catatonia and the locked-in syndrome, resulting from damage to the brainstem, in which the patient is conscious but unable to speak or make any movements of the body except for blinking and upward eye movements. See also persistent vegetative state.... vegetative state
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