About Brain Injury

A Glossary of Terms


  • Interdisciplinary

    Click on a letter to access terms or click the "on" button to browse entire glossary.


    Or Go To:

    Intracranial Pressure

    Understanding Coma

    Rancho Los Amigos Scale/ The Levels of Coma

    Objectives of Neurosurgery

    A Guide to Brain Anatomy

    ICD - See International Classification of Disease. [Click Here To Return To List]

    ICP - See Intracranial Pressure. [Click Here To Return To List]

    ICU - See Intensive Care Unit. [Click Here To Return To List]

    Impairment - Loss and/or abnormality of cognitive, emotional, physiological, or anatomical structure or function; including all losses or abnormalities, not just those attributable to the initial pathophysiology. [Click Here To Return To List]

    Imperception - Refers to a failure to perceive (notice) stimulation on one side of the body when both sides are being stimulated simultaneously (double simultaneous stimulation). It is not due to a primary sensory deficit such as deafness or blindness but appears to be an attentional deficit. It is less severe than "neglect"(see Unilateral Neglect) and may occur in a patient recovering from neglect. [Click Here To Return To List]

    Impulse Control - Refers to the individual's ability to withhold inappropriate verbal or motor responses while completing a task. Persons who act or speak without first considering the consequences are viewed as having poor impulse control. [Click Here To Return To List]

    Income Maintenance Service - Services related to the economic support of persons; welfare and social security are two such services. [Click Here To Return To List]

    Incontinent - Inability to control bowel and bladder functions. Many people who are incontinent can become continent with training. [Click Here To Return To List]

    Incoordination - A problem with coordination of movement of parts of the body, resulting from dysfunction of the nervous system rather than weakness of the muscles. [Click Here To Return To List]

    Independent - The ability to perform a task without assistance or supervision. [Click Here To Return To List]

    Independent Living Program - See Discharge: Options For Rehabilitation Facilities. [Click Here To Return To List]

    Individual Case Record, Vocational - All information obtained about the client prior to, during, and in follow-up. Includes referral information, social and work history, medical information, referral questions, program goals and plans, services to be provided, signed reports and notations related to performance and progress during the evaluation, notes from case conferences, the termination decision, and final report of findings and recommendations. [Click Here To Return To List]

    Individual Program Plan - See Client Plan. [Click Here To Return To List]

    Industrial Standards - Actual worker requirements from industry based on the expectations of the employer in terms of quality, quantity, and work behaviors. [Click Here To Return To List]

    Inflexible - Inability to adjust to changes. [Click Here To Return To List]

    Initiative - Refers to the individual's ability to begin a series of behaviors directed toward a goal. [Click Here To Return To List]

    Insight Regarding Impairment - The extent to which an individual accurately judges one's own strengths and limitations; also called metacognition. A patient's ability in this area may be judged on the basis of actions or statements regarding intended actions. Patients with brain injuries often overestimate their strengths and underestimate their limitations. For example, a patient with right hemisphere damage may attempt to drive a car while out on pass and get involved in a serious accident. A patient with two broken legs in casts may state he can't walk because he's "too tired." [Click Here To Return To List]

    Insured - See Terms and Definitions Related to Insurance. [Click Here To Return To List]

    Intake - Those activities which result in an individual's entry into the agency and the action taken to finalize arrangements (i.e. funding, housing, programming) necessary for such entry. [Click Here To Return To List]

    Intellect - Pertains to many of the higher functions of the brain. [Click Here To Return To List]

    Intelligence Quotient (IQ) - It is a measure of general intelligence obtained by testing. It consists of either a ratio of mental age to chronological age or a score of deviation from an expected test performance by age. [Click Here To Return To List]

    Intensive Care Unit (ICU) - Hospital unit that utilizes highly sophisticated equipment and specially trained physicians and nurses to care for patients who are in such serious condition that they must be continuously monitored. [Click Here To Return To List]

    Intensive Rehabilitation - An active, multi-disciplinary rehabilitation program provided for several hours daily, using a team approach. Focus is usually on skill development, rather than on treatment of specific deficits. [Click Here To Return To List]

    Intercerebral - Between the cerebral hemispheres. [Click Here To Return To List]

    Interdisciplinary - See Team. [Click Here To Return To List]

    Interdisciplinary Approach - A method of diagnosis, evaluation and individual program planning in which two or more specialists, such as medical doctors, psychologists, recreational therapists, social workers, etc., participate as a team, contributing their skills competencies, insights, and perspectives to focus on identifying the developmental needs of the person with a disability and on devising ways to meet those needs. [Click Here To Return To List]

    Intermittent Catheterization Program (ICP) - Bladder training program where a catheter is inserted to empty the bladder at regular time intervals. [Click Here To Return To List]

    International Classification of Disease (ICD-9) - A three digit "N" code used to indicate the pathological nature of an injury. The ninth revision of this classification (ICD-9) has been in use for several years. Unfortunately, the term "brain injury" does not appear as a category. There are ten rubrics which cover most brain/head injuries. The ICD is less useful than desired because rubrics are not mutually-exclusive. Differences occur in coding from one institution to another. A new version, ICD-10, is under preparation. [Click Here To Return To List]

    Interpersonal Skills - The ability to relate to others in a socially appropriate, meaningful way. [Click Here To Return To List]

    Interview - Communication between two or more persons used for such purposes as diagnosis, education, therapy or just to gain information. Though some interviews are primarily to obtain information and some primarily to give help, most involve a combination of the two. [Click Here To Return To List]

    Intracranial Pressure (ICP) - Cerebrospinal fluid (CSF) pressure measured from a needle or bolt introduced into the CSF space surrounding the brain. It reflects the pressure inside of the skull. [Click Here To Return To List]

    Intracranial Pressure Monitor- An ICP monitor. A monitoring device to determine the pressure within the brain. It consists of a small tube (catheter) attached to the patient at the skull by either a ventriculostomy, subarachnoid bolt, or screw and is then connected to a transducer, which registers the pressure. [Click Here To Return To List]

    Intracranial Insult - Something that causes injury to the brain. Includes hematomas (intraparenchymal and extraparenchymal; immediate or delayed) elevations of intracranial pressure (ICP), brain swelling, edema and vasospasm. [Click Here To Return To List]

    Intravenous (IV) - Tubing inserted into a vein through which fluid and medications can be given. [Click Here To Return To List]

    Intravenous Board - A simple wooden or plastic board usually attached with tape to the patient's forearm. It prevents bending and dislocation of the intravenous, or arterial lines. [Click Here To Return To List]

    Ipsilateral - Same side of the body. [Click Here To Return To List]

    Ischemia - A severe reduction in the supply of blood to body tissues. [Click Here To Return To List]

    IV - See Intravenous. [Click Here To Return To List]




    Attorney Gordon S. Johnson, Jr.

    Contact Us

    E-mail to: waiting.com
    For legal questions call toll free: 1-800-992-9447

    We are not medical professionals, however we encourage your inquiries regarding both legal issues and information on futher resources. Phone and email inquiries will be received by the staff of the Brain Injury Law Office, including Attorney Gordon S. Johnson, Jr.

    copyright ©2002 - 2013 Attorney Gordon S. Johnson, Jr., All rights reserved.

    For more on Attorney Gordon Johnson