Abstract
Keywords
Introduction
The
Research elements captured in this review
Investigation of empirical neurodiversity research in this review included: (a) research topics; (b) population focus; (c) research methods and data sources; (d) research participation; and (e) terminology use. The relevance of these topics to the neurodiversity paradigm is discussed next.
Neurodiversity research topics
Investigating common topics researched in the neurodiversity field paints a picture of the areas that current focus is placed, and where gaps in understanding may lie.
Neurominority group inclusion
The term neurodiversity was initially used with reference to autism, with autistic people advocating for their rights and to reduce marginalisation and discrimination encountered (Botha et al., 2024; Singer, 1998). The term is now also used with reference to other populations, including dyslexia, ADHD, Tourette's, and developmental language disorder (Honeybourne, 2018; Koi, 2021; Macdonald, 2019). While some neurodivergent people identify with these formal diagnoses, self-identification is also commonplace (Overton et al., 2024). Further, some (e.g., Asasumasu, 2016; Walker, 2021) have extended the neurodivergence term to include more diversity, such as people living with mental health conditions or those who have cognitive profiles altered by certain life experiences. Neurominority group representation will be investigated in the current review to explore the focus of research to date and identify research gaps. We sought to engage in this investigation without imposing our own preconceptions about what constitutes neurodivergence, so to highlight findings with minimal bias.
Other population considerations
An additional consideration for the neurodivergent population includes gender representation. For example, autism is reported to be more common for males, than females, with female characteristics reportedly less likely to meet the diagnostic threshold (Tsirgiotis et al., 2024). However, some advocates have suggested representation of females – as well as non-binary and transgender people – remains underrepresented in autism research (D’Mello et al., 2022; Strang & Fischbach, 2023). An exploration of gender representation in neurodiversity research is therefore pertinent. Further, the voices of neurodivergent people who are minimally speaking or have a co-occurring intellectual disability are poorly represented in the neurodiversity paradigm (den Houting, 2019). To better highlight that all neurodivergent people have a place in the neurodiversity paradigm (as advocates have argued, e.g., Kapp, 2023), neurodiversity research should be inclusive of people with higher support needs. In addition, consideration of population in this review includes making a comparison between adult and child populations. In traditional research relating to neurodevelopmental conditions, focus has predominantly been placed on studies about children and childhood, while studies focusing on adult populations and topics have been in the minority (Howlin, 2021).
Research methods and source of data
To examine how neurodiversity research is being conducted, review of methods and targeted sources of data are relevant undertakings, especially as the neurodiversity paradigm prioritises the voices of neurodivergent people (Pellicano & den Houting, 2022). While interviews and surveys are common methods for capturing participant perspectives directly in research (Walliman, 2021), other research methods are useful in disability studies, including ethnography, and autoethnography (Doan & Darcy, 2025). There should be consideration for hearing directly from neurodivergent people, rather than relying solely on other sources of data, such as parent perspectives, which is reported to be common in research with autistic children (Simpson et al., 2022). Therefore, the way in which the perspectives of neurodivergent people are captured in research, including for children and people who communicate in ways other than verbal communication, needs to be considered (Lewis et al., 2024; Nicolaidis et al., 2019).
Research participation
A further relevant consideration is the contribution of neurodivergent people to research. Participatory research is a method where community members – in this case, neurodivergent people and their allies – are involved in co-producing research (Fletcher-Watson et al., 2019). This has been identified a priority and benefit in research with marginalised communities (Wallerstein & Duran, 2010). The level of community contribution can vary, from limited involvement of neurodivergent members to research comprised of neurodivergent contingents exclusively (den Houting, 2021). In this review, investigation includes whether a statement is made about the neurotype of research team members and/or other neurodivergent community participation. While these indicators alone do not necessarily constitute authentic participatory research, and some team members may choose not to disclose their neurotype, it provides some insight to whether researchers have included neurodivergent community members in research implementation.
Terminology use
The term
Research aim
The aim of this study was to map the current scope of empirical research where neurodiversity was a central, explicit focus. The results highlight the current positioning of explicit neurodiversity research and research gaps. The guiding research questions were:
What is the focus of neurodiversity research? Who is being represented in neurodiversity research? How is neurodiversity research being undertaken?
Method
A scoping review was employed to address the aims of this study. Scoping reviews provide synthesis of knowledge on a given topic and are used to highlight the range of research available (Colquhoun et al., 2014). The
Engagement with the neurodivergent community
The research team consisted of one neurodivergent team member (second author), who is an autistic research assistant with experience engaging in research tasks. This member's contribution to the study included involvement in the article selection process, review of the data extraction and analysis process, determination of discussion key points, and editor to the final article. The other three authors of this review identify as neurotypical but neurodivergent community allies.
Search strategy
The search strategy was determined collaboratively by all research team members with input from two university librarians. The search took place across two time points; (a) initial search, June 2022; and (b) final search, July 2024 (to collate articles to end 2023). No restrictions were placed on start date as researchers were interested in the scope of neurodiversity research over time. The search terms used were limited to approximations of
Inclusion and exclusion criteria
The inclusion and exclusion criteria for this review are listed in Table 1. Determining whether neurodiversity was a central focus of the study was a subjective process and required collaboration between team members alongside establishment of clear eligibility criteria.
Inclusion/exclusion criteria.
Article selection
The article selection process is detailed in the PRISMA diagram in Figure 1. After duplicate removal, a total of 1697 articles were retrieved from the combined searches comprising no start date, until end December 2023. The first author conducted a review of title and abstracts, and this scan was cross-checked by the third listed author for articles that were difficult to classify. This process left 91 articles for a full-text scan. The first and second listed authors conducted the full text scan independently, with initial agreement between these authors at 78%. The third listed author provided a further independent review of full text articles that the first and second authors did not agree upon. Collectively, an agreement of 100% was reached on the final number of articles to be included in this review (

PRISMA flow chart.
Charting the data
After classifying the publication year of each included article, descriptive information was extracted to address the three research questions (see Table 2). Of note, it was not possible to extract meaningful information about the support needs of the neurodivergent people at the focus of the studies – such as prevalence of co-occurring intellectual disability and participants who were non-speaking – as this was infrequently reported in the articles. Also somewhat infrequently reported was the ethnicity/racial background of neurodivergent people in the studies. Consequently, analysis of race/ethnicity was not a focus of this review. Last, to map the differences in neurodiversity research across the lifespan, separate age-group categories were created for comparative analysis. These categories are described in the results section.
Charting the data.
Results
Of the 91 articles that underwent a full-text examination, 46 articles met the inclusion criteria and were included in this review. These articles span 2009–2023. The results provide a summary of empirical research of which our research team determined neurodiversity was a central, explicit study theme. The data breakdown for the descriptive analysis is included in Supplemental Material B.
Determination of research categories
Throughout this article, a comparison is made between
Category examples.
Year of publication
The number of articles published each year between 2009 and 2023 is featured in Figure 2. The first empirical study comprising an explicit neurodiversity focus captured in this review was published in 2009 (Griffin and Pollak, 2009), with the next articles (Cascio, 2012; Orsini, 2012) published in 2012. The average number of total publications per year was relatively stagnant in the period 2012 through 2020 (mean 1.4 publications per year). However, neurodiversity-related studies published in 2021 (

Year of publication.
Research question 1: What is the focus of neurodiversity research?
Research topics
The breadth of empirical neurodiversity research topics is represented in Figure 3. Some articles are represented by more than one topic in this graph. The topic most investigated in neurodiversity research was representation of autism through a neurodiversity lens (

Research topics.
The other most prevalent topic across included articles was
Research question 2: Who is being represented in neurodiversity research?
Neurodivergent populations studied
Overall, the most prevalent neurominority group investigated in neurodiversity research, across all four age-group categories, was autism. For child-focused research (see Figure 4), three of the four studies included autistic participants or an autism focus (75%). The child-focused study that explicitly included neurominority groups other than autism (Day, 2022) included a broader participant group categorised as

Neurodivergent populations studied in child-focused research (

Neurodivergent populations studied in combined adult and child research (
In contrast, there was more variance in neurominority group representation in the adult-focused research category (see Figure 6). Autism representation, still in the majority, was represented in 78% (

Neurodivergent populations studied in adult-focused research (

Neurodivergent populations studied in general research (
Gender diversity
Gender representation across the total article yield was difficult to categorise, as nearly half the articles (
Research question 3: How is neurodiversity research being undertaken?
Research methods
Qualitative methods were dominant in neurodiversity research captured in this review, with 70% (

Research methods.
Source of data
Data generated about neurodiversity and/or neurodivergence referenced in the articles came from a variety of sources. Data generated directly from neurodivergent people (i.e., directly observed, surveyed, interviewed, or quoted) is indicated in this section as

Source of data.
Research participation
To gain insight as to whether research was co-designed with one or more members of the neurodivergent community, review of the articles included noting whether it was stated the research team included a neurodivergent member or if there was other neurodivergent community involvement. Of the 46 articles included in this review, 27 research groups (59%) did not include a statement about researcher neurotype or neurodivergent community involvement. Of the 19 groups that referenced neurotype or community participation, 17 indicated they included at least one neurodivergent person as either an author (e.g., Bailey, 2023; Betts et al., 2023; Meads, 2022) or non-author member of the team (e.g., Angulo-Jiménez & DeThorne, 2019; Ferenc et al., 2023a). Two articles included positionality of research team members being either non-autistic (Orsini, 2012) or (implied) neurotypical (Karaminis et al., 2023; the latter noted involvement of parents of neurodivergent children in the team). There may have been other neurodivergent researchers across the included articles who chose not to disclose their neurotype. No mention was made of participatory research with neurodivergent children in any of the neurodiversity articles. In more recent articles, both the number of articles explicitly stating inclusion of neurodivergent team members rose substantially, as did the apparent level of neurodivergent contribution, for example, more recent articles included sole authorship from a neurodivergent person (e.g., Jacobs, 2023; Meinen, 2023) or an exclusively neurodivergent research team (e.g., Bertilsdotter Rosqvist et al., 2023b). Examples of ‘neuromixed’ (Bertilsdotter Rosqvist et al., 2023a, p. 408) research teams also featured, with this research group providing an explicit example of the possible benefit of neurotypical and neurodivergent people researching neurodiversity together.
Terminology used
Identity-first terminology was used frequently to describe neurodivergent people throughout the included articles (

Terminology used.
Discussion
The aim of this review was to map the scope of empirical research where neurodiversity was deemed to be a central, explicit focus. The results and recommendations for future research are discussed in this section. Although several limitations present for this review (see Limitations section), particularly in relation to restriction of inclusion criteria to explicit mention of neurodiversity in study aims and/or investigation topic, the results provide an (albeit narrow) perspective to the trajectory of neurodiversity research. This can be used alongside broader research reviews and lived experiences of neurodivergent people to inform future neurodiversity research and impact how neurocognitive differences are perceived, understood, and supported. A summary of recommendations based on the current review results is provided in Table 4.
Summary of recommendations for future neurodiversity empirical research.
Research question 1: What is the focus of neurodiversity research?
Research topics
The results include a review of topics featured in explicit neurodiversity research across the four age-group categories. A notable finding was the prevalence of adult-focused topics, including workplace and higher education studies, but a dearth of research into child-focused topics such as early childhood and school education. Considering the growing awareness of the benefit of neurodiversity-affirming approaches in education (Saggers et al., 2023), explicit neurodiversity research should expand further to education topics. For example, there is scope for future research to investigate application of a neurodiversity lens to the support provisions provided for neurodivergent students, like studies captured in the current review conducted in higher education contexts (e.g., Budy, 2021). There is also scope for exploring alignment of neurodiversity-affirming practice with inclusive education priorities, such as a model presented by Rajotte et al. (2024) which was published outside the date range of the current review. Of note, child-focused research that narrowly missed inclusion in this review (e.g., where neurodiversity was deemed to be a peripheral, not central, focus) does exist and includes exploration of neurodiversity principles and related student supports. Examples include investigation of teaching practices grounded in neurodiversity (Hunt et al., 2022) and a study focus on student strengths in an early childhood context (Naples & Tuckwiller, 2021). Regardless, the current review highlights there is presently a more explicit focus on the neurodiversity concept in research topics relating to adults and adulthood, than for topics relating to children and childhood.
The results of this scoping review also demonstrate the rise in research exploring neurodiversity-aligned
Research question 2: Who is being represented in neurodiversity research?
Low representation of children and childhood
Findings show growth in research that focuses explicitly on the neurodiversity paradigm appears to be driven by the rise in adult-focused research, not child-focused research, which instead has remained stagnant over time. These findings contrast with traditional autism research (for example), where research about children and childhood dominate (Howlin, 2021). While there have been justified calls for increases in adult-focused research (e.g., Doyle & McDowall, 2022), child-focused neurodiversity research must not be left behind. Including a focus on children and childhood in the rising production of neurodiversity research will help ensure future policy and practice is responsive to contemporary neurodiversity-affirming approaches relevant for all neurodivergent people, children included.
Narrow scope of represented populations
A further finding of this review is the narrow
Variety in future neurodiversity research should also extend to gender diversity. An interesting finding of this review, however, was the relatively equal distribution of gender in adult-focused research (for studies reporting on gender of neurodivergent people). This compares again to traditional autism research (for example), where female populations are reported to be under-represented (D’Mello et al., 2022). There remains scope for further balancing of gender in child-focused neurodiversity research, and more inclusion of non-binary and transgender participants across the board (Strang & Fischbach, 2023). Further, although not able to be analysed in this review due to limited detail provided in the included studies, it appears crucial that future neurodiversity research includes people who are minimally speaking, or who have an intellectual disability – the voices of whom appear to remain in the minority in the neurodiversity paradigm (den Houting, 2019). Neurodiversity research should also be more inclusive of people from different racial/ethnic backgrounds to expand neurodiversity scholarship beyond White populations (Nair et al., 2024).
Research question 3: how is neurodiversity research being undertaken?
Methods and source of data
Results highlight a range of qualitative methods (primarily) have been employed in neurodiversity research, with ethnography a notably common method employed across all age group categories. In particular, the recent inclusion of autoethnographic neurodiversity research, including collaborative autoethnographies, appeared a useful method for highlighting the voices of neurodivergent scholars directly (e.g., Guberman, 2023; Jacobs, 2023) and promotion of ‘neuromixed’ (Bertilsdotter Rosqvist et al., 2023a, p. 408) collaboration in this field. Autoethnographies are suggested to be an asset to the field of disability studies as they provide opportunity to empower marginalised voices, challenge dominant narratives, and invite connection and empathy (Doan & Darcy, 2025; Smith & Sparkes, 2007). As such, continued inclusion of this method in neurodiversity research appears worthwhile.
Alongside inclusion of ethnography in child-focused research captured in this review, the results demonstrate it is also possible for methods such as interviews to be employed with neurodivergent children, particularly adolescents (e.g., Brilhante et al., 2021; Day, 2022). However, there must be consideration for how interviews are designed and carried out in future research, especially with younger neurodivergent children, and this should include seeking to elicit perspectives beyond verbal answers (James et al., 1998; Lewis et al., 2024). Consideration for multi-modal approaches to data generation, for example, the Mosaic approach (Clark & Moss, 2011), is worthy of consideration for future child-focused neurodiversity research. By eliciting an individualised, multi-modal approach to data generation with children, like that presented by Lewis et al. (2024), there is increased scope for children's voices to be captured directly in research (Clark & Moss, 2011). This is needed, as the current review highlights neurodiversity research pertaining to child-focused topics such as education, is at times represented through sources other than neurodivergent children (e.g., Bailey, 2023).
Research participation and terminology
A further component of this review was exploration into research participation of neurodivergent community members. This was an important factor to investigate as advocates have called for neurodivergent voices to be a central facilitator of neurodiversity research (e.g., Dwyer, 2022; Pellicano & den Houting, 2022). Of note, recently published, adult-focused research captured in this review included several instances of neurodivergent co-authorship and other community involvement. This may indicate increased implementation of participatory research, although the degree of contribution was not always clear. A potential rise in research co-production again compares to more traditional autism research, where participatory research is in its infancy (den Houting et al., 2021). Continued efforts toward genuine co-production across the breadth of neurodiversity research is recommended, however, the format in which this is reported could be flexible – as is supported by this journal (Shah & Holmes, 2023).
Finally, the finding related to prevalence of identity-first terminology use in the included articles aligns with research demonstrating a preference for this terminology in the neurodiversity field (Bury et al., 2023). This also contrasts with traditional autism research, especially that aligned with the medical model of disability and the premise of normalisation (e.g., Lee et al., 2022). Of note, however, research citing community preferences has in the majority been conducted with
Limitations
Neurodiversity is a growing area of research and an evolving concept that influences how it is defined, researched, and applied in practice. While the current review is novel and has implications for future research, the recommendations made must be treated with caution for the following reasons: (a) narrow inclusion criteria applied; (b) subjective process used for determining neurodiversity as a central study theme; and (c) how neurodiversity is applied in research may not always be explicitly outlined or clearly apparent in articles.
The inclusion criteria for this review were restricted to studies deemed to include neurodiversity as a central, explicit focus. Specifically, following a series of trial searches, the search was restricted to approximations of the
Further, restricting the criteria to English articles limits the breadth in research location of the studies and reduces the cultural reach of the results. Related to this, review of race/ethnicity of neurodivergent people featured in neurodiversity research should be a focus of future reviews. In addition, being a scoping review with the intent of mapping empirical neurodiversity research broadly, a review of study quality was not completed, nor was an interrogation into the conceptualisation of neurodiversity applied by the researchers. The latter is presented in a separate article by the same authors (McLennan et al., 2025). Different results and alternate conclusions may be drawn, should a review of study quality be completed in future systematic reviews of neurodiversity research or if other research groups make different decisions about what constitutes a study with a central focus on neurodiversity.
Conclusion
Although results and recommendations from this review must be considered with caution, there is evidence that there is recent growth in empirical research where neurodiversity is a central, explicit focus. This growth is due primarily to the rise in adult-focused research, which is much more prevalent than child-focused research with neurodiversity an explicit theme. Common topics investigated include perception of autism through a neurodiversity lens, identity and wellbeing topics, and adult-focused topics like workplace and higher education. There is a dearth of explicit neurodiversity research into topics of childhood, such as school education, which is needed in future research to better inform neurodiversity-affirming support provisions in this sector. Further examination and recommendations are provided relating to the narrow scope of included neurodivergent populations, alongside recommendations for methods and design of future research, such as hearing directly from neurodivergent people, continued focus on research participation, and terminology use in articles.
Supplemental Material
sj-docx-1-ndy-10.1177_27546330251337874 - Supplemental material for Neurodiversity: A scoping review of empirical research
Supplemental material, sj-docx-1-ndy-10.1177_27546330251337874 for Neurodiversity: A scoping review of empirical research by Helen McLennan, Rachel Aberdein, Beth Saggers and Jenna Gillett-Swan in Neurodiversity
Supplemental Material
sj-docx-2-ndy-10.1177_27546330251337874 - Supplemental material for Neurodiversity: A scoping review of empirical research
Supplemental material, sj-docx-2-ndy-10.1177_27546330251337874 for Neurodiversity: A scoping review of empirical research by Helen McLennan, Rachel Aberdein, Beth Saggers and Jenna Gillett-Swan in Neurodiversity
Footnotes
Acknowledgements
Funding
Declaration of conflicting interests
Supplemental material
References
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