Average Intelligence: Causes & Reasons

Possible Causes for Average Intelligence

Most people with diastrophic dysplasia have average intelligence and a normal life expectancy and can expect to lead productive lives. [kidshealth.org]

Spinal Muscular Atrophy Type 1

The brain is not affected, and they have been tested to have at least average to above average intelligence. [smasupport.com]

Some even have above-average intelligence. Encourage your child to take part in as many age-appropriate activities as possible. [healthline.com]

Hearing and vision are not affected, and intelligence is normal or above average. [christopherreeve.org]

Rolandic Epilepsy

Tiziana Zilli, Sergio Zanini, Stefania Conte, Renato Borgatti and Cosimo Urgesi, Neuropsychological assessment of children with epilepsy and average intelligence using NEPSY [doi.org]

RESULT: the obtained data indicate that although intellectual efficiency (measured through the Intelligence Quatient - IQ) was within average, children with rolandic epilepsy [ncbi.nlm.nih.gov]

Learning disability: An abnormal condition affecting children of normal or above-average intelligence, characterized by difficulty in learning fundamentals such as reading [childneurologyfoundation.org]

Craniofrontonasal Dysplasia

In conclusion, individuals diagnosed with frontonasal dysplasia usually are of average intelligence and can expect a normal life span. [ncbi.nlm.nih.gov]

Adult Spinal Muscular Atrophy

The brain is not affected, and they have been tested to have at least average to above average intelligence. [smasupport.com]

Spinal Muscular Atrophy

The brain is not affected, and they have been tested to have at least average to above average intelligence. [smasupport.com]

Some even have above-average intelligence. Encourage your child to take part in as many age-appropriate activities as possible. [healthline.com]

When there are no brain abnormalities, the child may have average or above average intelligence, even if there is advanced hydrocephalus at birth. [aans.org]

Achondroplasia

No, people with achondroplasia have average intelligence and life expectancy. [growingstronger.org]

However, the symptoms can be managed to improve the individual’s overall quality of life Most individuals reach an average height of 4-5 feet. [dovemed.com]

Intelligence is usually not affected by the mutated FGFR3 gene, and hence, they are able to lead relatively normal lives Preventative measures, appropriate and timely management [dovemed.com]

Mucopolysaccharidosis

Morquio A presents average intelligence, and MPS type VI points to deficits partially related to sensory impairment, implying significant differences between them. [lifescienceglobal.com]

Hallermann-Streiff Syndrome

Case report The case involved a 50 year old Hindu woman, 121 cm in height, weighing 22 kg., and possessing average intelligence. [ijo.in]

The average final height for females is about 60 in (152 cm) and for males it is about 61 in (155 cm). [encyclopedia.com]

Most individuals are of normal intelligence; however, it is estimated that 15-30% of individuals with Hallermann-Streiff syndrome show some degree of mental impairment or [encyclopedia.com]

Pseudoachondroplasia

They have normal intelligence and an average life span. Ongoing medical monitoring is important for people with pseudoachondroplasia. [chop.edu]

Intelligence is normal. The average height of adults is 118 cm (males: 86-127 cm; females 104-122 cm). [rgauk.org]

People with pseudoachondroplasia have normal intelligence, head size, and facial features. [chop.edu]

SHORT Syndrome

[…] to above-average intelligence. [autism-society.org]

Although these children may also possess signs of low blood sugar or obesity, they display average body proportions and (average intelligence. [hgfound.org]

Intelligence or cognitive abilities are unlikely to be affected unless the person has hydrocephalus, or too much fluid around the brain. [medicalnewstoday.com]

Spondyloepimetaphyseal Dysplasia Type Strudwick

The children were judged to be of average intelligence; earlier, mental retardation was thought to be present and to distinguish their disorder from Strudwick dysplasia. [bio2rdf.org]

Mucopolysaccharidosis Type 4A

On clinical examination, the child appeared to have a less than average intelligence but was placid and cooperative. [ijaweb.org]

Russell-Silver Syndrome

This is supported by results from a new study of 10 patients with SRS who have been shown to have average intelligence (assessed using the full-scale IQ).39 While there were [jmg.bmj.com]

Intellectual functioning in 10 adult patients with SRS due to 11p15 loss of methylation was assessed by Full Scale Intelligence Quotient and was in the average range, but [frontiersin.org]

Nager Syndrome

The intelligence of the affected group was found to be generally above average and not significantly different from that of the control group. [cambridge.org]

Rheumatic Chorea

Intellectual impairment has been reported in one family in which affected individuals had intelligence quotient scores averaging 10 points lower than unaffected relatives. [emedicine.medscape.com]

Spondyloepimetaphyseal Dysplasia - Abnormal Dentition

[…] and average intelligence (29%). [entokey.com]

[…] usually normal or above average Obesity is a problem Dental crowding and ear problems secondary to bone overgrowth X-Rays All long tubular bones are affected Metaphysis is [flinders.edu.au]

[…] delay, mental retardation, learning difficulties, speech deficit, and behavioral problems. 34 Intellectual function ranges from severe mental retardation (29%) through weak intelligence [entokey.com]

Tricho-Rhino-Phalangeal Syndrome Type 3

intelligence How is Trichorhinophalangeal Syndrome Type I Diagnosed? [dovemed.com]

Intelligence was below average, Speech development was normal, There were no other skin or nail changes. The girl's height was 125 cm and weight was 21 kg. [ijdvl.com]

Dysplasia of the Hip Long philtrum (vertical groove between the nose and upper lip), thin upper lip Medially thick, laterally thin, or absent eyebrows Mild mental retardation, average [dovemed.com]

Tricho-Rhino-Phalangeal Syndrome Type 1

intelligence How is Trichorhinophalangeal Syndrome Type I Diagnosed? [dovemed.com]

Dysplasia of the Hip Long philtrum (vertical groove between the nose and upper lip), thin upper lip Medially thick, laterally thin, or absent eyebrows Mild mental retardation, average [dovemed.com]

Parkinson Disease

Parkinson's disease is a form of neurological disorder characterized by gradual loss of those neurological functions that governs body movement. The disease is therefore also referred to as movement disorder. In the early stages of the disease, signs and symptoms are pretty less evident. However, as the disease[…] [symptoma.com]

Syringomyelia

About Syringomyelia General Information Syringomyelia is a condition in which a cyst (pocket of fluid) forms within the spinal cord. This cyst, called a syrinx, can expand over time, damaging the center of the spinal cord. Since the spinal cord connects the brain to nerves in the arms and legs, this damage can result[…] [neurosurgery.ucla.edu]

Motor Neuron Disease

We report a rare association of spinocerebellar ataxia and motor neuron disease (MND) in a woman with genetically confirmed SCA2 who subsequently developed a rapidly progressive and fatal form of MND. Considering the rarity of these two neurological conditions, it is interesting to note that the concomitant[…] [ncbi.nlm.nih.gov]

Amyotrophic Lateral Sclerosis

Amyotrophic Lateral Sclerosis (ALS) Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a progressive wasting away of the nerve cells in the brain and spinal column that control the muscles that allow movement. Over a period of months or years, ALS causes increasing muscle weakness, inability[…] [stanfordhealthcare.org]

Chorea Gravidarum

Treatment of a case of severe chorea gravidarum with haloperidol is presented. A possible neuropharmacologic explanation of the beneficial effects of the neuroleptics, particularly haloperidol, is offered based on the dopamine antagonism of these drugs. Heightened dopaminergic activity in the striatum is postulated[…] [ncbi.nlm.nih.gov]

Movement Disorder

Movement disorder Specialty Neurology Psychiatry Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity.[1] Movement disorders are synonymous with basal ganglia or extrapyramidal diseases.[2] Movement[…] [en.wikipedia.org]

Metaphyseal Chondrodysplasia Type Kaitila

Those affected have an average adult height of 131 centimetres (4 ft 4 in) for males and 123 centimetres (4 ft) for females. [howlingpixel.com]

Intelligence is generally normal.Achondroplasia is due to a mutation in the fibroblast growth factor receptor 3 (FGFR3) gene. [howlingpixel.com]

Craniosynostosis

Overview Children's Center At Mayo Clinic, medical and surgical specialists from over 70 areas are available to discuss and develop a personal treatment plan for your child. Children's Center Craniosynostosis (kray-nee-o-sin-os-TOE-sis) is a disorder present at birth in which one or more of the fibrous joints[…] [mayoclinic.org]

Osteogenesis Imperfecta Type 13

Osteogenesis imperfecta ( OI ), or brittle bone disease, is a heritable disorder of connective tissue characterized by bone fragility and low bone mass. OI is clinically and genetically heterogeneous with severity varying from mild to perinatal lethal. Mutations in the COL1A1 and COL1A2 genes cause approximately 90% of[…] [ctgt.net]

Mucopolysaccharidosis Type 6

Mucopolysaccharidosis type VI (Maroteaux-Lamy syndrome) in the pre-Columbian culture of Colombia Harry Pachajoa, Carlos Armando Rodriguez Full Text: PDF(EN) PDF(ES) HTML Abstract Mucopolysaccharidosis type VI or Maroteaux Lamy syndrome is an autosomal recessive lysosomal storage disorder resulting from a[…] [colombiamedica.univalle.edu.co]

Mucopolysaccharidosis Type 1S

Mucopolysaccharidosis 5 is nowadays referred to as mucopolysaccharidosis 1S or Scheie syndrome. Mucopolysaccharidosis 5 is now classified as a form of mucopolysaccharidosis 1, referred to as mucopolysaccharidosis 1S (MPS1S) or Scheie syndrome. MPS1S is the mildest form of mucopolysaccharidosis 1. [symptoma.com]