Martha Reed Herbert | |
---|---|
Alma mater | University of California, Santa Cruz |
Known for | Environmental causes of autism |
Scientific career | |
Fields | Child psychiatry |
Institutions | Harvard Medical School, Massachusetts General Hospital |
Thesis | Evolution as a learning process in Marx, Piaget and Habermas (1981) |
Martha Herbert is an American physician and assistant professor of neurology at Harvard Medical School [1] and pediatric neurologist at Massachusetts General Hospital. Herbert is also director of the TRANSCEND program at the Athinoula A. Martinos Center for Biomedical Imaging. [2]
Herbert graduated, and received her medical degree, from the Columbia University College of Physicians and Surgeons after obtaining a doctoral degree at the University of California, Santa Cruz. She trained in evolutionary biology and the development of learning processes, and performed postdoctoral work in the philosophy and history of science. [3]
Herbert began seeing patients in a psychiatry clinic in 1996; these patients suffered from a variety of psychological disabilities, including headaches, seizures, behavioral-control problems, obsessions, and tics. However, as time went on she began seeing a higher proportion of autistic children. Around the same time, she was conducting a number of neuroimaging studies on differences in the brains of autistic children, and as a result of this research, she concluded that autism is a disorder that affects the entire body, not just the brain. [4]
Herbert has claimed that many children with autism have biomedical problems, and that these problems exacerbate the symptoms of autism. [5] Her research focuses on attributing the development of autism to the existence of certain predisposing genes, with her coauthors on this topic including Peter Szatmari. [6] In addition, some of her research focuses on the possible existence of enlarged superficial white matter in the brains of people with autism, as well as developmental language disorder. [7] [8] [9] [10]
More recently, Herbert published an opinion paper in 2010 which argued, among other things, that "Systemic and central nervous system pathophysiology, including oxidative stress, neuroinflammation, and mitochondrial dysfunction can be consistent with a role for environmental influence," [11] as well as a case report in the Journal of Child Neurology , which described a patient with autistic symptoms who improved markedly after she was placed on a gluten-free, casein-free diet. [12]
Herbert has been a regular presenter at anti-vaccine conferences. [13]
Herbert's view of environmental causes of autism has been ruled inadmissible by a Massachusetts Superior Court judge, who said "Dr. Herbert’s method is not generally accepted in the scientific community. Dr. Herbert’s theory of environmental triggers of autism may some day prove true. It has not yet. Her proffered testimony does not meet the standard of reliability required by the case law, and cannot be admitted in evidence at trial." [14]
Herbert has threatened to sue journalists for reporting her views. [15]
Herbert is also the author of a book, The Autism Revolution: Whole-Body Strategies for Making Life All It Can Be, published in 2012 by Ballantine Books. In the book, she recounts stories of children with autism who followed recommendations to receive unconventional autism treatments, and whose conditions improved--"sometimes dramatically so", according to Herbert. [16] It was reviewed in the Washington Post, [16] the Journal of Hospital Librarianship, [17] and Kirkus Reviews. [18]
Asperger syndrome (AS), also known as Asperger's, is a neurodevelopmental condition characterized by significant difficulties in social interaction and nonverbal communication, along with restricted and repetitive patterns of behaviour and interests. The syndrome is no longer recognised as a diagnosis in itself, having been merged with other conditions into autism spectrum disorder (ASD). It was considered to differ from other diagnoses that were merged into ASD by relatively unimpaired spoken language and intelligence.
Lorna Gladys Wing was an English psychiatrist. She was a pioneer in the field of childhood developmental disorders, who advanced understanding of autism worldwide, introduced the term Asperger syndrome in 1976 and was involved in founding the National Autistic Society (NAS) in the UK.
A pervasive developmental disorder not otherwise specified (Including atypical autism) (PDD-NOS) is one of four disorders which have been collapsed into the diagnosis of autism spectrum disorder in the DSM-5 and also was one of the five disorders classified as a pervasive developmental disorder (PDD) in the DSM-IV. According to the DSM-4, PDD-NOS is a diagnosis that is used for "severe or pervasive impairment in the development of reciprocal social interaction and/or verbal and nonverbal communication skills, or when stereotyped behavior, interests, and/or activities are present, but the criteria are not met for a specific PDD" or for several other disorders. PDD-NOS includes atypical autism, because the criteria for autistic disorder are not met, for instance because of late age of onset, atypical symptomatology, or subthreshold symptomatology, or all of these. Even though PDD-NOS is considered milder than typical autism, this is not always true. While some characteristics may be milder, others may be more severe.
Childhood disintegrative disorder (CDD), also known as Heller's syndrome and disintegrative psychosis, is a rare condition characterized by late onset of developmental delays—or severe and sudden reversals—in language, social engagement, bowel and bladder, play and motor skills. Researchers have not been successful in finding a cause for the disorder. CDD has some similarity to autism and is sometimes considered a low-functioning form of it. In May 2013, CDD, along with other sub-types of PDD, was fused into a single diagnostic term called "autism spectrum disorder" under the new DSM-5 manual.
Diagnoses of autism have become more frequent since the 1980s, which has led to various controversies about both the cause of autism and the nature of the diagnoses themselves. Whether autism has mainly a genetic or developmental cause, and the degree of coincidence between autism and intellectual disability, are all matters of current scientific controversy as well as inquiry. There is also more sociopolitical debate as to whether autism should be considered a disability on its own.
Neurodiversity refers to diversity in the human brain and cognition, for instance in sociability, learning, attention, mood, and other mental functions. It provides an inclusive view of cognitive diversity, highlighting the differences at a neuro-biological level while considering the socio-cultural contexts of a human's lived experience.
The UC Davis MIND Institute is a research and treatment center affiliated with the University of California, Davis, with facilities located on the UC Davis Medical Center campus in Sacramento, California. The institute is a consortium of scientists, educators, physicians and parents dedicated to researching the causes of and treatments for autism spectrum disorders, fragile X syndrome, and other neurodevelopmental disorders. The director of the MIND institute is Dr. Leonard Abbeduto.
The heritability of autism is the proportion of differences in expression of autism that can be explained by genetic variation; if the heritability of a condition is high, then the condition is considered to be primarily genetic. Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether autism spectrum disorder (ASD) is explained more by multigene interactions or by rare mutations with major effects.
Many causes of autism have been proposed, but understanding of the theory of causation of autism, or otherwise known as autism spectrum disorder (ASD) is incomplete. Attempts have been made to incorporate the known genetic and environmental causes into a comprehensive causative framework. ASD is a complex developmental condition marked by persistent challenges to social interaction, speech and nonverbal communication, and restricted/repetitive behaviors and its phenotypes vary significantly.
Autism therapies include a wide variety of therapies that help people with autism, or their families. Such methods of therapy also seek the increase of functional independence in autistic people. Many therapies marketed towards autistic people and/or their parents claim outcomes that have not been supported by Level of Research (LOE) Level 1 Level 1 research includes evidence from a systematic review or meta-analysis of all relevant RCTs or evidence-based clinical practice guidelines based on systematic reviews of RCTs or three or more RCTs of good quality that have similar results.
The epidemiology of autism is the study of the incidence and distribution of autism spectrum disorders (ASD). A 2022 systematic review of global prevalence of autism spectrum disorders found a median prevalence of 1% in children in studies published from 2012 to 2021, with a trend of increasing prevalence over time. However, the study’s 1% figure may reflect an underestimate of prevalence in low- and middle-income countries.
Asperger syndrome (AS) was formerly a separate diagnosis under autism spectrum disorder. Under the DSM-5 and ICD-10, patients formerly diagnosable with Asperger syndrome are diagnosable with Autism Spectrum Disorder. It is now an outdated term, and is considered offensive by many autistic individuals. It was named after Hans Asperger (1906–80), who was an Austrian psychiatrist and pediatrician. An English psychiatrist, Lorna Wing, popularized the term "Asperger's syndrome" in a 1981 publication; the first book in English on Asperger syndrome was written by Uta Frith in 1991 and the condition was subsequently recognized in formal diagnostic manuals later in the 1990s. Details of Hans Asperger's actions as a psychiatrist in Nazi era Austria, made public in 2018, incited debate of the syndrome's name and public lobbying for a renaming of the syndrome.
Kanner syndrome, officially childhood autism, was a neurodevelopmental diagnosis before the release of the DSM-5 and ICD-11. It has been superseded by autism spectrum disorder. In daily speech it is often referred to as "classic autism", or "Kanner autism."
Several factors complicate the diagnosis of Asperger syndrome (AS), an autism spectrum disorder (ASD). Like other ASD forms, Asperger syndrome is characterized by impairment in social interaction accompanied by restricted and repetitive interests and behavior; it differs from the other ASDs by having no general delay in language or cognitive development. Problems in diagnosis include disagreement among diagnostic criteria, the controversy over the distinction between AS and other ASD forms or even whether AS exists as a separate syndrome, and over- and under-diagnosis for non-technical reasons. As with other ASD forms, early diagnosis is important, and differential diagnosis must consider several other conditions.
The autism spectrum, often referred to as just autism, autism spectrum disorder (ASD) or sometimes autism spectrum condition (ASC), identifies a loosely defined cluster of neurodevelopmental issues characterized by challenges in social interaction, verbal and nonverbal communication, and often repetitive behaviors and restricted interests. Other common features include unusual responses to sensory stimuli and a preference for sameness or unusual adherence to routines.
The opioid excess theory is a theory which postulates that autism is the result of a metabolic disorder in which opioid peptides produced through metabolism of gluten and casein pass through an abnormally permeable intestinal membrane and then proceed to exert an effect on neurotransmission through binding with opioid receptors. It is believed by advocates of this hypothesis that autistic children are unusually sensitive to gluten, which results in small bowel inflammation in these children, which in turn allows these opioid peptides to enter the brain.
Richard Eugene Frye is an American autism researcher and associate professor at Arizona Children's Hospital in Phoenix, and formerly of the University of Arkansas for Medical Sciences's department of pediatrics, as well as the Director of the Autism Multispecialty Clinic at Arkansas Children’s Hospital. Frye was formerly a faculty member at the University of Texas Health Science Center at Houston's division of child and adolescent neurology.
The development of an animal model of autism is one approach researchers use to study potential causes of autism. Given the complexity of autism and its etiology, researchers often focus only on single features of autism when using animal models.
Men and boys are more frequently diagnosed with autism than women and girls. It is debated whether this is due to a sex difference in rates of autism spectrum disorders (ASD) or whether females are underdiagnosed. The prevalence ratio is often cited as about 4 males for every 1 female diagnosed. Other research indicates that it closer to 3:1 or 2:1. One in every 42 males and one in 189 females in the United States is diagnosed with autism spectrum disorder. There is some evidence that females may also receive diagnoses somewhat later than males; however, thus far results have been contradictory.
Low-functioning autism (LFA) is a degree of autism marked by difficulties with social communication and interaction, challenging behavior, and differences in social or emotional reciprocity. Sleep problems, aggression, stereotypical, and self-injurious behavior are also common symptoms. LFA is not a recognized diagnosis in the DSM-5 or ICD-10, as neither subdivides autism based on intellectual capabilities.