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ARBD
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Alcohol Related Birth Defects -physical
birth defects that are often related to FASD (caused by alcohol) but
can have other causes, eg. Cleft palate, heart murmurs, and scoliosis.
ARBD is not considered a FASD diagnosis in the newest Canadian FASD
diagnostic guidelines.
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ARND
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Alcohol Related Neurodevelopmental Disorder- is the brain damage caused by recognized alcohol consumption in pregnancy. ARND brain damage is equivalent to brain damage in full fetal alcohol syndrome but lacks growth deficiencies and facial birth defects. This is the most common form of FASD; hundreds of thousands of Canadians have ARND. Most are not diagnosed.
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Basal Ganglia
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are the large masses of gray matter at the base of the cerebral hemisphere. It affects spatial memory and behaviours like perseveration and the inability to switch modes, work toward goals, and predict outcomes of actions.
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Cerebellum
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a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans. It has many functions including cognition, voluntary muscle movement, behaviour, memory and the maintenance of posture and balance.
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Co-occurring Diagnoses
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are diagnoses that occur at the same time. Co-occurring diagnoses are extremely common with FASD. Typical additional diagnoses include R/AD-Radical Attachment Disorder, OCD-Obsessive Compulsive Disorder, ODD-Oppositional Defiant Disorder, CD-Conduct Disorder, BPD-Borderline Personality, SID-Sensory Information Disorder, AD/HD-Attention Deficit/Hyperactivity Disorder, LD-Learning Disorder, and Depression.
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Corpus Callosum
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The arched bridge of nervous tissue that connects the two cerebral hemispheres, allowing communication between the right and left sides of the brain.
The structure that passes information from the left brain (rules, logic) to the right brain (impulse, feelings) and back again.
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Diencephalon
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The posterior part of the forebrain that connects the midbrain with the cerebral hemispheres, encloses the third ventricle, and contains the thalamus and hypothalamus. Also called the interbrain, it functions as a relay centre within the brain.
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Dysmaturity
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is a classic sign of FASD described by Clarren, Malbin and Streissguth. A person with FASD will simultaneously exhibit behaviours common to people of different ages. For example, someone with FASD might be 18 years of age, sound like a 22 year old (expressive language), act like a 6 year old in a social and moral sense, read like a young teen and understand time and money at about the same level as a 12 year old. People with FASD tend to catch up to themselves as much as they are going to by their early to mid-thirties.
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Dysmorphology
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is the faulty formation of the structures of shape or form in the developing embryo.
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Dysplasias
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condition of abnormal development.
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Epicanthal folds
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extra skin at the inner corners of the eyes, common in Aboriginal Peoples.
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Executive Functions
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are the higher-order brain functions that enable us to meet goals and solve problems through planning, initiating and maintaining behaviour. They include self-motivation, self-regulation, capacity to use working memory and inhibition. Due to prefrontal cortex damage, as well as injury to other parts of the brain, these abilities are often missing or very limited in persons with FASD.
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External Brains
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refers to a concept relied upon heavily in successful FASD intervention efforts. People with FASD benefit from having one or more people in their lives with whom they have an interdependent and supportive relationship. The “external brains" may be family members, friends, community volunteers or professionals providing services. External brains can perform a variety of functions. Examples are: doing some of the thinking that a person with FASD cannot do, steer them in the right directions, remind them of obligations and managing their money for them.
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FAE
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Fetal Alcohol Effects (FAE) is the old name for ARND, Static Encephalopathy and Neurobehavioural Disorder. This term is not diagnosed in Canada and is used less and less often today.
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FAS
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Fetal Alcohol Syndrome is a medical diagnosis used to describe an individual born with permanent brain damage, growth deficiencies and three facial birth defects resulting from prenatal exposure to alcohol. Confirmation of maternal alcohol use in pregnancy is not required for this rare diagnosis. FAS occurs in about 1% of all alcohol-affected births.
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FASD
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Fetal Alcohol Spectrum Disorder is the umbrella term used to describe the range of defects and disabilities caused by prenatal exposure to alcohol. These can include brain damage, vision and hearing difficulties, bones, limbs and fingers that are not properly formed, heart, kidney, liver and other organ damage and slow growth. FASD is not a medical diagnosis but describes a spectrum of medical disabilities.
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Frontal Lobes
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The largest and most anterior part of each cerebral hemisphere. This area controls impulses and judgment. Contains the prefrontal cortex, which controls what are called the executive functions.
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Hippocampus
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A complex neural structure (shaped like a sea horse) consisting of gray matter and located on the floor of each lateral ventricle of the brain. It plays a critical role in memory, learning and emotion.
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Hypothalamus
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The part of the brain that lies below the thalamus, forming the major portion of the ventral region of the diencephalons. It regulates body temperature, certain metabolic processes such as appetite, and other autonomic activities such as pain sensation. It also plays a role in memory.
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neurobehavioural
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Neurobehavioural: Having to do with the way the brain affects emotion, behavior, and learning
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Neurobehavioural Disorder
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is brain damage that has been demonstrated as being less severe than brain damage in ARND/FAS. Neurological disorder is a term that in not in common use in Canada yet. It is used for a type of brain damage less than that seen in ARND or FAS when maternal confirmation is impossible or not forthcoming.
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Neurotoxin
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a substance that kills neurons, which are nerve cells. In the case of pregnancy a neurotoxin destroys developing neurons. Mercury and lead are two other well-known neurotoxins.
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Palpebral fissures
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eye slits, the eye slits of a child with FAS are small.
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pFAS
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Partial Fetal Alcohol Syndrome-is a medical diagnosis used to describe an individual born with permanent brain damage and two of the three facial birth defects found in FAS. Confirmation of maternal alcohol use in pregnancy is required for this relatively uncommon diagnosis.
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Philtrum
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groove between the upper lip and the base of the nose
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