Autistic Females Research Articles

The presentation, recognition and diagnosis of autism in women and girls

Purpose Autistic women and girls have received comparatively less attention within clinical practice and research. Research suggests women tend to be diagnosed later than men, and are more likely to experience misdiagnosis. Design/methodology/approach This paper aims to report a narrative literature review that examines research on the presentation, recognition, and diagnosis of autistic women and girls. Findings Findings suggest that autistic females present differently to males and highlight low recognition of the female presentation of autism among the general public, in social spheres, educational, clinical and forensic settings. This lack of recognition appears to affect the likelihood of females being referred for diagnosis, the reliability of diagnostic assessments and subsequent access to support. Originality/value Recommendations for clinical practice focus on initiatives to increase awareness of the female presentation of autism, improving the diagnostic process for females, increasing female representation within autism training and for future research to support these goals.

Quantitative and Qualitative Sex Modulations in the Brain Anatomy of Autism

BackgroundSex-based neurobiological heterogeneity in autism is poorly understood. Research is disproportionately biased to males, leading to an unwarranted presumption that autism neurobiology is the same across sexes. Previous neuroimaging studies using amalgamated multicenter datasets to increase autistic female samples are characterized by large statistical noise. MethodsWe used a better-powered dataset of 1183 scans of 839 individuals—299 (467 scans) autistic males, 74 (102 scans) autistic females, 240 (334 scans) control males, and 226 (280 scans) control females—to test two whole-brain models of overall/global sex modulations on autism neuroanatomy, by summary measures computed across the brain: the local magnitude model, in which the same brain regions/circuitries are involved across sexes but effect sizes are larger in females, indicating quantitative sex modulation; and spatial dissimilarity model, in which the neuroanatomy differs spatially between sexes, indicating qualitative sex modulation. The male and female autism groups were matched on age, IQ, and autism symptoms. Autism brain features were defined by comparisons with same-sex control individuals. ResultsAcross five metrics (cortical thickness, surface area, volume, mean absolute curvature, and subcortical volume), we found no evidence supporting the local magnitude model. We found indicators supporting the spatial dissimilarity model on cortical mean absolute curvature and subcortical volume, but not on other metrics. ConclusionsThe overall/global autism neuroanatomy in females and males does not simply differ quantitatively in the same brain regions/circuitries. They may differ qualitatively in spatial involvement in cortical curvature and subcortical volume. The neuroanatomy of autism may be partly sex specific. Sex stratification to inform autism preclinical/clinical research is needed to identify sex-informed neurodevelopmental targets.

Investigating gender differences in the early markers of Autism Spectrum Conditions (ASC) in infants and toddlers

BackgroundMany females with Autism Spectrum Conditions (ASC) are diagnosed later, mis-diagnosed, or missed altogether compared with males, leading to lost opportunities for early supports and services. It is therefore critical that researchers attempt to identify the earliest possible opportunity for females with ASC to be identified and diagnosed. The primary objective of this study was to investigate gender differences in the early signs of ASC in infants and toddlers identified during routine, community-based, developmental surveillance. A secondary aim was to examine gender ratio trends across time. MethodA cross-sectional sample of 197 infants and toddlers (44 female, 153 male) at “high likelihood” for ASC were grouped by autism diagnosis and gender to enable social-communication behaviours to be compared at 18 and 24 months of age. Furthermore, gender ratio trends were examined between 12 and 24 months of age. ResultsNo gender differences were found across groups at 18–24-months (small samples prohibited analyses at 12-months). However, the ratio of autistic females to males decreased from 1:15 at 12-months to 1:3.2 by 24-months. ConclusionsThe results of this study suggest close monitoring of females is required when conducting developmental surveillance for ASC, due to the large gender ratio discrepancy between 12- and 24-months. It is recommended that future studies continue to focus on the early autism phenotype in community-based samples, to assist with modification or development of female specific screening and developmental surveillance tools during infancy and toddlerhood.

"You Must Become a Chameleon to Survive": Adolescent Experiences of Camouflaging.

Camouflaging includes strategies used by individuals to mask or hide autistic traits. Research has shown that both autistic and neurotypical individuals engage in camouflaging and that there may be sex differences in the reasons for camouflaging in autistic adults. The purpose of this qualitative study was to extend previous research on the lived experience of camouflaging through exploring camouflaging motivations and consequences in autistic and neurotypical adolescents through both questionnaires (n = 132) and semi-structured interviews (n = 19). Results revealed trends in camouflaging motivations and consequences by diagnosis and sex, as well as by sex within the autistic group. These findings further inform our understanding of camouflaging and why it may be reported as particularly detrimental for autistic females.

Symptom profiles and correlates of anxiety and depression among parents of autistic girls and boys

BackgroundAlthough it has been reported for some time that parenting an autistic child is associated with elevated anxiety and depression, no direct comparison has been published regarding the relative anxiety and depressive states of parents of an autistic son versus an autistic daughter. AimsTo investigate the presence of differences in anxiety and depression in parents of autistic girls and boys, and to identify if there were any meaningful child-based correlates of those states. Methods and proceduresA sample of 51 parents of young autistic males (M age = 10.2 yr, SD = 2.8 yr, range to 6–17 yr) and 51 parents of autistic females (M age = 10.1 yr, SD = 2.7 yr, range to 6–17 yr) completed the GAD7 and PHQ9. Autistic children were assessed for IQ and autism severity. Outcomes and resultsAlthough there were no significant differences between the two sets of parents’ GAD7 or PHQ9 total scores, there were significant and meaningful differences at the individual GAD7 and PHQ9 item level. Moreover, when examined at the within-child-sex subgroup level, different aspects of the autistic sons’ and daughters’ age and IQ were correlated with specific items from the GAD7 and PHQ9. Conclusions and implicationsBecause these items were somatic in nature, implications are discussed for possible treatment strategies with these parents.

Functional gender differences in autism: An international, multidisciplinary expert survey using the International Classification of Functioning, Disability, and Health model.

In this study, we explored if professionals working with autistic people in different regions of the world perceive differences between females and males diagnosed with the condition. A total of 131 professionals responded to a survey that included an open question about gender differences in autism. Of these, 32 responded that they do not perceive gender differences in autism. The information provided by the other 99 experts was analyzed to identify common patterns. Three main differences were found, (1) Matching the clinical conceptualization of autism where professionals described differences in core symptoms of autism, and that autistic females were less similar to the conceptualization of autism. In (2) Co-existing problems, professionals described that autistic males display more apparent problems including hyperactivity, while autistic females were perceived as having more internalizing issues such as anxiety and eating disorders. In the last category, (3) Navigating the social environment, experts perceived autistic females as more socially motivated, and more inclined to camouflage social difficulties, making their challenges less evident. Professionals also perceived differences in the social environment, for example, that autistic girls receive more support from their peers while autistic boys are more often bullied. Our results suggest that professionals working in different parts of the world acknowledge gender differences in autism, but also that there might be some regional differences. Finally, we found that gender differences reported by the international professionals could largely be assessed with a shortened version of the International Classification of Functioning by the World Health Organization, specifically developed for autism.

Alexithymia in autism: cross-sectional and longitudinal associations with social-communication difficulties, anxiety and depression symptoms.

Alexithymia (difficulties in identifying and describing emotion) is a transdiagnostic trait implicated in social-emotional and mental health problems in the general population. Many autistic individuals experience significant social-communication difficulties and elevated anxiety/depression and alexithymia. Nevertheless, the role of alexithymia in explaining individual variability in the quality/severity of social-communication difficulties and/or anxiety and depression symptoms in autism remains poorly understood. In total, 337 adolescents and adults (autism N = 179) were assessed for alexithymia on the Toronto Alexithymia Scale and for social-communication difficulties, anxiety and depression symptoms. A total of 135 individuals (autism N = 76) were followed up 12-24 months later. We used regression models to establish cross-sectional and longitudinal associations between alexithymia, social-communication difficulties, anxiety and depression symptoms. Autistic individuals reported significantly higher alexithymia than comparison individuals (p < 0.001, r effect size = 0.48), with 47.3% of autistic females and 21.0% of autistic males meeting cut-off for clinically relevant alexithymia (score ⩾61). Difficulties in describing feelings were particularly associated with current self-reported social-communication difficulties [p < 0.001, β = 0.57, 95% confidence interval (CI) 0.44-0.67] and predicted later social-communication difficulties (p = 0.02, β = 0.43, 95% CI 0.07-0.82). Difficulties in identifying feelings were particularly associated with current anxiety symptom severity (p < 0.001, β = 0.54, 95% CI 0.41-0.77) and predicted later anxiety (p = 0.01; β = 0.31, 95% CI 0.08-0.62). Our findings suggest that difficulties in identifying v. describing emotion are associated with differential clinical outcomes in autism. Psychological therapies targeting emotional awareness may improve social-communication and anxiety symptoms in autism, potentially conferring long-term benefits.

Increased prevalence of non-communicable physical health conditions among autistic adults.

Previous research indicates autistic individuals die at a younger age than others and that this is possibly due in part to chronic physical health conditions. The present study used an anonymous, online survey to determine how common certain physical health conditions are among autistic adults, compared with non-autistic adults. We found autistic adults are more likely to develop heart conditions, lung conditions, and diabetes than non-autistic adults. Autistic females may be at higher risk of developing certain conditions (including respiratory conditions, asthma, and prediabetes) than autistic males. Finally, autistic individuals have increased health risks even when considering lifestyle factors (such as smoking, alcohol, and body mass index). This is still a relatively small study, and future research needs to confirm these findings and identify why these risks exist.

Intrinsic excitation-inhibition imbalance affects medial prefrontal cortex differently in autistic men versus women.

Excitation-inhibition (E:I) imbalance is theorized as an important pathophysiological mechanism in autism. Autism affects males more frequently than females and sex-related mechanisms (e.g., X-linked genes, androgen hormones) can influence E:I balance. This suggests that E:I imbalance may affect autism differently in males versus females. With a combination of in-silico modeling and in-vivo chemogenetic manipulations in mice, we first show that a time-series metric estimated from fMRI BOLD signal, the Hurst exponent (H), can be an index for underlying change in the synaptic E:I ratio. In autism we find that H is reduced, indicating increased excitation, in the medial prefrontal cortex (MPFC) of autistic males but not females. Increasingly intact MPFC H is also associated with heightened ability to behaviorally camouflage social-communicative difficulties, but only in autistic females. This work suggests that H in BOLD can index synaptic E:I ratio and that E:I imbalance affects autistic males and females differently.

Facial emotion recognition in autistic adult females correlates with alexithymia, not autism.

Research on predominantly male autistic samples has indicated that impairments in facial emotion recognition typically associated with autism spectrum conditions are instead due to co-occurring alexithymia. However, whether this could be demonstrated using more realistic facial emotion recognition stimuli and applied to autistic females was unclear. In all, 83 females diagnosed with autism spectrum condition completed online self-report measures of autism spectrum condition severity and alexithymia, and afacial emotion recognition deficit that assessed their ability to identify multimodal displays of complex emotions. Higher levels of alexithymia, but not autism spectrum condition severity, were associated with less accurate facial emotion recognition. Difficulty identifying one’s own feelings and externally oriented thinking were the components of alexithymia that were specifically related to facial emotion recognition accuracy. However, alexithymia (and autism spectrum condition severity) was not associated with speed of emotion processing. The findings are primarily discussed with the theoretical view that perceiving and experiencing emotions share the same neural networks, thus being able to recognise one’s own emotions may facilitate the ability to recognise others’. This study is in line with previous similar research on autistic males and suggests impairments in facial emotion recognition in autistic females should be attributed to co-occurring alexithymia.Lay abstractResearch with autistic males has indicated that difficulties in recognising facial expressions of emotion, commonly associated with autism spectrum conditions, may instead be due to co-occurring alexithymia (a condition involving lack of emotional awareness, difficulty describing feelings and difficulty distinguishing feelings from physical bodily sensations) and not to do with autism. We wanted to explore if this would be true for autistic females, as well as to use more realistic stimuli for emotional expression. In all, 83 females diagnosed with autism spectrum condition completed self-report measures of autism spectrum condition traits and alexithymia and completed a visual test that assessed their ability to identify multimodal displays of complex emotions. Higher levels of alexithymia, but not autism spectrum condition features, were associated with less accuracy in identifying emotions. Difficulty identifying one’s own feelings and externally oriented thinking were the components of alexithymia that were specifically related to facial emotion recognition accuracy. However, alexithymia (and levels of autism spectrum condition traits) was not associated with speed of emotion processing. We discuss the findings in terms of possible underlying mechanisms and the implications for our understanding of emotion processing and recognition in autism.

Sex/Gender Differences in Camouflaging in Children and Adolescents with Autism

This study investigated sex/gender differences in camouflaging with children and adolescents (N = 84) with and without an autism diagnosis/increased levels of autistic traits using two conceptualisations/operationalisations of camouflaging. A significant group-by-gender interaction using ANCOVA, with the covariate of verbal IQ, reflected similar levels of social reciprocity in autistic and neurotypical females, whereas autistic males had lower reciprocity than neurotypical males. Autistic females also had higher reciprocity than autistic males, despite similar levels of autistic traits (behavioural camouflaging). Additionally, autistic males and females had similar theory of mind skills, despite females having increased reciprocity (compensatory camouflaging). These findings provide evidence of increased camouflaging in autistic females, which may contribute to delay in the recognition of difficulties and provision of support.

Gender identity, sexual orientation and adverse sexual experiences in autistic females

BackgroundThere is growing recognition that autistic females present with more diverse gender and sexual identities than their non-autistic counterparts. Likewise, autistic females are also at an increased risk of adverse sexual experiences. As higher rates of sexual victimisation are observed in individuals with diverse sexual identities in the broader population, rates of negative sexual experiences among autistic females remain unclear. This study aimed to investigate the representation of gender and sexual diversity within autistic females and examine their rates of regretted, and unwanted, sexual encounters among females with a transgender gender identity and non-heterosexual sexual orientation.MethodsTwo hundred and ninety-five females completed the Sexual Behaviour Scale-III (SBS-III) online. Self-reported gender identity and sexual orientation were compared between 134 autistic (Mage= 26.2 years, SD = 8.7) and 161 non-autistic females (Mage = 22.0 years, SD = 4.6). Differences in the prevalence of negative sexual experiences were compared across diagnosis and each gender identity and sexual orientation label.ResultsAutistic females were more likely to identify with a transgender gender identity (p < .05) and non-heterosexual sexual orientation (p < .007) compared to non-autistic females. Autistic homosexual females were more likely to have experienced a range of negative sexual experiences than autistic heterosexual females (OR ≥ 3.29; p < .01) and were more likely to have experienced unwanted sexual experiences than non-autistic females regardless of sexual orientation (OR ≥ 2.38; p < .05). There were no differences in rates of negative sexual experiences between autistic bisexual and both autistic heterosexual and non-autistic bisexual females. Non-autistic bisexual females (OR = 0.24; p = .018) presented with a reduced risk of regretted sexual experiences than non-autistic heterosexual peers. There were no differences in negative sexual experiences across gender identity in the autistic sample.LimitationsThe use of fixed format response items may have restricted participants’ abilities to provide rich responses pertaining to their sexual identities and nature of negative sexual experiences. The small number of participants who identified as transgender (n = 40) limits the reliability of results pertaining to sexual experiences across gender identity. Moreover, although multiple recruitment methods were used in this study, non-representative may bias estimates of prevalence rates. Thus, the data may not be representative of the broader population.ConclusionsResults indicate that autistic females present with greater diversity in their sexual identities than individuals without autism, with those with a homosexual sexual orientation being at greater risk of experiencing adverse sexual encounters. Findings suggest the importance of increased clinical attention to this diversity and the need to provide support to facilitate the development of a healthy sexual identity and reduce the risks identified in this study.

Recognition of Girls on the Autism Spectrum by Primary School Educators: An Experimental Study.

Autism has long been considered a predominantly male condition. It is increasingly understood, however, that autistic females are under-recognized. This may reflect gender stereotyping, whereby symptoms are missed in females, because it is assumed that autism is mainly a male condition. Also, some autistic girls and women may go unrecognized because there is a "female autism phenotype" (i.e., a female-typical autism presentation), which does not fit current, male-centric views of autism. Potential biases shown by educators, in their role as gatekeepers for an autism assessment, may represent a barrier to the recognition of autism in females. We used vignettes describing autistic children to test: (a) whether gender stereotyping occurs, whereby educators rate males as more likely to be autistic, compared to females with identical symptoms; (b) whether recognition is affected by sex/gender influences on autistic presentation, whereby children showing the male autism phenotype are rated as more likely to be autistic than those with the female phenotype. Ratings by primary school educators showed a significant main effect of both gender and presentation (male phenotype vs. female phenotype) on estimations of the child in the vignette being autistic: respondents showed a bias against girls and the female autism phenotype. There was also an interaction: female gender had an effect on ratings of the female phenotype, but not on the male phenotype vignette. These findings suggest that primary school educators are less sensitive to autism in girls, through under-recognition of the female autism phenotype and a higher sensitivity to autism in males. LAY SUMMARY: Educators have an important role in identifying children who need an autism assessment, so gaps in their knowledge about how autism presents in girls could contribute to the under-diagnosis of autistic girls. By asking educators to identify autism when presented with fictional descriptions of children, this study found that educators were less able to recognize what autism "looks like" in girls. Also, when given identical descriptions of autistic boys and girls, educators were more likely to identify autism in boys. These results suggest that primary school educators might need extra help to improve the recognition of girls on the autism spectrum. Autism Res 2020, 13: 1358-1372. © 2020 International Society for Autism Research, Wiley Periodicals, Inc.

Neural responsivity to social rewards in autistic female youth

Autism is hypothesized to be in part driven by a reduced sensitivity to the inherently rewarding nature of social stimuli. Previous neuroimaging studies have indicated that autistic males do indeed display reduced neural activity to social rewards, but it is unknown whether this finding extends to autistic females, particularly as behavioral evidence suggests that affected females may not exhibit the same reduction in social motivation as their male peers. We therefore used functional magnetic resonance imaging to examine social reward processing during an instrumental implicit learning task in 154 children and adolescents (ages 8–17): 39 autistic girls, 43 autistic boys, 33 typically developing girls, and 39 typically developing boys. We found that autistic girls displayed increased activity to socially rewarding stimuli, including greater activity in the nucleus accumbens relative to autistic boys, as well as greater activity in lateral frontal cortices and the anterior insula compared with typically developing girls. These results demonstrate for the first time that autistic girls do not exhibit the same reduction in activity within social reward systems as autistic boys. Instead, autistic girls display increased neural activation to such stimuli in areas related to reward processing and salience detection. Our findings indicate that a reduced sensitivity to social rewards, as assessed with a rewarded instrumental implicit learning task, does not generalize to affected female youth and highlight the importance of studying potential sex differences in autism to improve our understanding of the condition and its heterogeneity.

Sleep Quality in Autism from Adolescence to Old Age.

Background: Sleep problems are common in autism from early childhood. Although research suggests that poor sleep continues at least into early middle age, the pattern of sleep problems has rarely b...

When the mask comes off: Mothers' experiences of parenting a daughter with autism spectrum condition.

Parents of children with autism spectrum condition report increased stress and difficulties compared with parents of typically developing children. Our knowledge and understanding of how autism spectrum condition presents in autistic females is currently limited and parents of this population may experience challenges when raising their daughter. Given that mothers are often the main caregiver of a child with autism spectrum condition, they may have useful insights into the experiences of parenting a daughter with autism spectrum condition. Therefore, a qualitative study was undertaken to explore what mothers' experiences are of parenting a daughter with autism spectrum condition. Semi-structured interviews were conducted with 10 mothers of daughters with autism spectrum condition. The interviews were analysed using interpretative phenomenological analysis. Five main themes emerged from the qualitative study ('Girls have autism too', 'She's a chameleon', 'The impact of the diagnosis', 'Impact on mums' and 'Day-to-day life'). The findings of this study expand our current knowledge of the experiences and challenges faced by mothers raising a daughter with autism spectrum condition. Mothers hold a vast amount of knowledge on their daughters' autism spectrum condition which could inform the diagnostic process and clinical practice. Considering these results, it is important that clinicians support mothers and the family system around children with an autism spectrum condition diagnosis.

Social Camouflaging in Autistic and Neurotypical Adolescents: A Pilot Study of Differences by Sex and Diagnosis.

Camouflaging is a process through which individuals mask autistic traits. Studies suggest autistic females may camouflage more than autistic males. However, research has focused on adults and includes few comparisons between autistic and neurotypical individuals. This study compared levels of camouflaging by sex and diagnosis in autistic and neurotypical adolescents. Females reported higher overall levels of camouflaging when not accounting for age. When accounting for age, an age by diagnosis interaction effect emerged. This possible effect of age on camouflaging has implications for understanding how camouflaging behaviors develop and warrants further exploration. Differences also emerged on behaviors labeled as masking and assimilation, subcomponents of camouflaging, with females appearing more similar to their neurotypical peers on behaviors related to social awareness.

Sex and gender impacts on the behavioural presentation and recognition of autism.

With increasing awareness of potential differences of autism presentation in nonmale versus male individuals, this review summarizes the rapidly evolving literature on sex and gender impacts on autism across nosology, behavioural presentation, developmental change and contextual recognition biases. Most studies have not differentiated sex versus gender impacts. Regarding behavioural presentation, measurement invariance across sex/gender was found in several standard measures. On this basis, diagnosed females overall showed lower restricted/repetitive behaviour/interests/activities (RRBI) than males, with small and variable effects depending on age, developmental level and kinds of RRBI. Differences insufficiently captured by standard measures may include autistic females displaying female-gender-typical narrow interests, higher social attention, linguistic abilities, motivation for friendship and more camouflaging than autistic males. Regarding developmental change, diagnosed young girls were more likely to have better cognitive development, less intense autistic symptoms and reduction of symptoms over time. Difficulties in adaptive functioning and social challenges, however, may emerge more for females in adolescence. Regarding diagnosis, general expectancy biases and gender-stereotypes may impede timely recognition of autism in females. Appreciating the multilevel sex and gender impacts on presentation, development, and diagnosis is key to sex-equitable and gender-equitable care for autistic individuals. A holistic approach to understanding the person in the contexts of sex and gender is essential for timely and accurate diagnosis and support.

Social and Object Attention Is Influenced by Biological Sex and Toy Gender-Congruence in Children With and Without Autism.

Emerging research suggests social attention in autism spectrum disorder (ASD) girls is enhanced relative to ASD boys but may also be affected by the type of social and nonsocial content presented. This study examined how biological sex and gender norms interact to influence visual attention in 79 school-aged children observing scenes that included gender-associated toys and actors of both sexes. Attention to social (faces) and object activity (hands with toys) stimuli was measured. Previously described distinctions between social attention in ASD boys and girls were replicated, with ASD girls looking more at faces than ASD boys. Irrespective of diagnosis, males and females attended more to actors that shared their same sex, and attended more to toys with gender-associations that were consistent with their own sex, suggesting that social and object salience increases for children under sex-consistent conditions. Importantly, ASD and typically developing (TD) children increased their gaze to faces when male actors were shown playing with female-associated toys, suggesting that both groups of children are sensitive to societal messages about the acceptability of males playing with female-associated toys. Our findings provide further evidence of heightened attention to faces in ASD girls relative to ASD boys, and indicate that social attention in ASD and TD children is influenced by who (male or female actor) and what (male- or female-associated toy) is being observed. Collectively, these results present a nuanced profile of attention in ASD that adds to a growing body of research indicating subtle phenotypic differences in ASD girls that may impact identification, assessment, and intervention. Autism Res 2020, 13: 763-776.. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Sex differences observed in typical development may also be present in individuals with autism. In this study, we developed an eye-tracking paradigm featuring videos of boys and girls playing with toys that varied in their gender associations. Attention to faces differed between autistic and non-autistic children but was also influenced by the sex of the actor and gender-association of toys. Autistic females demonstrated subtle attention differences that distinguished them from autistic males and may influence referral, diagnosis, and intervention.

Girls and women with autism.

Girls and women with autism are often undiagnosed, misdiagnosed or receive a diagnosis of autism at later age. This can result in adverse outcomes in their well-being, mental health, education, employment, and independence. The diagnosis of autism spectrum condition/disorder (hereinafter referred to as autism), with its current features linked with descriptions in the major diagnostic classification systems, is based primarily on observations and research on males. The term 'Autism Spectrum Condition' (ASC), used in this paper, has been coined by Simon Baron-Cohen and used in the professional literature for a decade to respect these individuals on the autism spectrum who feel that the term 'disorder'is stigmatizing, whereas ASC presents both the strengths of these people and difficulties they experience. The research shows that autism in females has unique symptomatology and manifests itself differently, more subtly, especially in high-functioning girls and women, i.e., those with fluent speech, average or above-average intelligence quotient. The research also shows diagnostic stereotypes and lack of required sensitivity to identify autistic females. Additionally they do not reflect the unique presentation of autism in females demonstrated by greater compensatory capacity and an ability to develop sophisticated methods of 'camouflaging'and masquerading. Furthermore, autism in females is associated with high comorbidity during adolescence including anxiety disorder, tic disorder, depression, high incidence of suicide, eating disorders, and high rates of other medical problems. Timely diagnosis, however, can reduce the difficulties that females with autism experience over their lifetime, allowing for the assessment of their needs regarding health, education, leisure, social relationships, and employment.