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Sex And Gender Differences In Autism
Sex and gender differences in autism exist regarding prevalence, presentation, and diagnosis. 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 is 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. Several theories exist to explain the sex-based discrepancy, such as a genetic protective effect, the extreme male brain theory and phenotypic differences in the presentation between sexes, which may all be intertwined. Researchers have also debated whether a diagnostic gender bias has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prevalence
In epidemiology, prevalence is the proportion of a particular population found to be affected by a medical condition (typically a disease or a risk factor such as smoking or seatbelt use) at a specific time. It is derived by comparing the number of people found to have the condition with the total number of people studied and is usually expressed as a fraction, a percentage, or the number of cases per 10,000 or 100,000 people. Prevalence is most often used in questionnaire studies. Difference between prevalence and incidence Prevalence is the number of disease cases ''present ''in a particular population at a given time, whereas incidence is the number of new cases that ''develop '' during a specified time period. Prevalence answers "How many people have this disease right now?" or "How many people have had this disease during this time period?". Incidence answers "How many people acquired the disease uring a specified time period". However, mathematically, prevalence is propor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-harm
Self-harm is intentional behavior that is considered harmful to oneself. This is most commonly regarded as direct injury of one's own skin tissues usually without a suicidal intention. Other terms such as cutting, self-injury and self-mutilation have been used for any self-harming behavior regardless of suicidal intent. It is not the same as masochism, as no sexual or nonsexual pleasure is obtained. The most common form of self-harm is using a sharp object to cut the skin. Other forms include scratching, hitting, or burning body parts. While earlier usage included interfering with wound healing, excessive skin-picking, hair-pulling, and the ingestion of toxins, current usage distinguishes these behaviors from self-harm. Likewise, tissue damage from drug abuse or eating disorders is not considered self-harm because it is ordinarily an unintended side-effect but context may be needed as intent for such acts varies. Although self-harm is by definition non-suicidal, it may still b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sex Differences In Psychology
Sex differences in psychology are differences in the mental functions and behaviors of the sexes and are due to a complex interplay of biological, developmental, and cultural factors. Differences have been found in a variety of fields such as mental health, cognitive abilities, personality, emotion, sexuality, and tendency towards aggression. Such variation may be innate, learned, or both. Modern research attempts to distinguish between these causes and to analyze any ethical concerns raised. Since behavior is a result of interactions between nature and nurture, researchers are interested in investigating how biology and environment interact to produce such differences, although this is often not possible. A number of factors combine to influence the development of sex differences, including genetics and epigenetics; differences in brain structure and function; hormones, and socialization. The formation of gender is controversial in many scientific fields, including psychology. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autism Spectrum
The autism spectrum, often referred to as just autism or in the context of a professional diagnosis autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a neurodevelopmental condition (or conditions) characterized by difficulties in social interaction, verbal and nonverbal communication, and the presence of repetitive behavior and restricted interests. Other common signs include unusual responses to sensory stimuli. Autism is generally understood as a ''spectrum disorder'', which means that it can manifest differently in each person: any given autistic individual is likely to show some, but not all, of the characteristics associated with it, and the person may exhibit them to varying degrees. Some autistic people remain nonspeaking over the course of their lifespan, while others have relatively unimpaired spoken language. There is large variation in the level of support people require, and the same person may present differently at varying times. Historically, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testosterone
Testosterone is the primary sex hormone and anabolic steroid in males. In humans, testosterone plays a key role in the development of Male reproductive system, male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of androgenic hair, body hair. In addition, testosterone in both sexes is involved in health and well-being, including moods, behaviour, and in the prevention of osteoporosis. Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss. Testosterone is a steroid from the androstane class containing a ketone and a hydroxyl group at positions three and seventeen respectively. It is Biosynthesis, biosynthesized in several steps from cholesterol and is converted in the liver to inactive metabolites. It exerts its action through binding to and activation of the androgen receptor. In humans and most other vertebrates, testost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Baron-Cohen
Sir Simon Philip Baron-Cohen (born 15 August 1958) is a British clinical psychologist and professor of developmental psychopathology at the University of Cambridge. He is the director of the university's Autism Research Centre and a Fellow of Trinity College. In 1985, Baron-Cohen formulated the mind-blindness theory of autism, the evidence for which he collated and published in 1995. In 1997, he formulated the foetal sex steroid theory of autism, the key test of which was published in 2015. He has also made major contributions to the fields of typical cognitive sex differences, autism prevalence and screening, autism genetics, autism neuroimaging, autism and technical ability, and synaesthesia. Baron-Cohen was knighted in the 2021 New Year Honours for services to autistic people. Early life and education Baron-Cohen was born into a middle-class Jewish family in London. He has an elder brother Dan Baron Cohen and three younger siblings, brother Ash Baron-Cohen and sisters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurodivergent
Neurodiversity refers to diversity in the human brain and cognition, for instance in sociability, learning, attention, mood and other mental functions. It was coined in 1998 by sociologist Judy Singer, who helped popularize the concept along with journalist Harvey Blume, and situates human cognitive variation in the context of biodiversity and the politics of minority groups. This view arose out of the autism rights movement, as a challenge to prevailing views that certain things currently classified as neurodevelopmental disorders are inherently pathological. It builds on the social model of disability, in which disability arises out of societal barriers interacting with individual differences, rather than people being disabled simply as a result of having impairments. Some neurodiversity advocates and researchers, notably Judy Singer and Patrick Dwyer, argue that the neurodiversity paradigm is the middle ground between strong medical model and strong social model. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leo Kanner
Leo Kanner (; born Chaskel Leib Kanner; June 13, 1894 – April 3, 1981) was an Austrian-American psychiatrist, physician, and social activist best known for his work related to autism spectrum disorder. Before working at the Henry Phipps Psychiatric Clinic at the Johns Hopkins Hospital, Kanner practiced as a physician in Germany and South Dakota. In 1943, Kanner published his landmark paper ''Autistic Disturbances of Affective Contact'', describing 11 children who displayed "a powerful desire for aloneness" and "an obsessive insistence on persistent sameness." He named their condition "early infantile autism," which is now known as autism spectrum disorder. Kanner was in charge of developing the first child psychiatry clinic in the United States and later served as the ''Chief of Child Psychiatry'' at the Johns Hopkins Hospital. He is one of the co-founders of The Children's Guild, a nonprofit organization serving children, families and child-serving organizations throughout Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Asperger
Johann Friedrich Karl Asperger (, ; 18 February 1906 – 21 October 1980) was an Austrian psychiatrist. He is remembered for his pioneering studies of autism, specifically in children. His name was given to Asperger syndrome, a form of autism defined in 1981 by Lorna Wing, which is now referred to as Autism spectrum disorder - level 1 as per the DSM-5. He wrote more than 300 publications on psychological disorders that posthumously acquired international renown in the 1980s. He had previously termed the diagnosis, "autistic psychopathy", which garnered controversy. Further controversy arose during the late 2010s over allegations that Asperger referred children to a Nazi German clinic responsible for murdering disabled patients, although his knowledge and involvement remains unknown. His role in Austria annexed by the Nazis remained unknown for a long time, until the study of archival documents. These show that Hans Asperger, who worked under the direction of his friend Franz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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