Murray T. Maybery

University of Western Australia

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Andrew J. O. Whitehouse

The Kids Research Institute Australia

Johanna C. Badcock

University of Western Australia

Diana Weiting Tan

University of Western Australia

Martha Hickey

University of Melbourne

Michael C. W. English

University of Western Australia

Troy A. W. Visser

University of Western Australia

Gail A. Alvares

The Kids Research Institute Australia

Graeme S. Halford

Griffith University

David R. Badcock

University of Western Australia

Allison M. Fox

Cornell University

Cooperative Institutions

University of Western Australia

155

Center for Neurosciences

University of British Columbia

Yale University

Universidad de Salamanca

University of California, San Francisco

Hussman Institute for Autism

University of California, Los Angeles

The Kids Research Institute Australia

University of California, Davis

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Grouping of list items reflected in the timing of recall: implications for models of serial verbal memory

Journal of Memory and Language (2002)

Murray T. Maybery Fabrice B. R. Parmentier Dylan M. Jones

Serial position effect

10.1016/s0749-596x(02)00014-1

Cite

Citations (95)

The Structure and Measurement of Unusual Sensory Experiences in Different Modalities: The Multi-Modality Unusual Sensory Experiences Questionnaire (MUSEQ)

Frontiers in Psychology (2017)

Claire A. A. Mitchell Murray T. Maybery Suzanna N. Russell-Smith Daniel Collerton Gilles E. Gignac

Hallucinations and other unusual sensory experiences (USE) can occur in all modalities in the general population. Yet, the existing literature is dominated by investigations into auditory hallucinations ('voices'), while other modalities remain under-researched. Furthermore, there is a paucity of measures which can systematically assess different modalities, which limits our ability to detect individual and group differences across modalities. The current study explored such differences using a new scale, the Multi-Modality Unusual Sensory Experiences Questionnaire (MUSEQ). The MUSEQ is a 43-item self-report measure which assesses USE in six modalities: auditory, visual, olfactory, gustatory, bodily sensations, and sensed presence. Scale development and validation involved a total of 1300 participants, which included: 513 students and community members for initial development, 32 individuals with schizophrenia spectrum disorder or bipolar disorder for validation, 659 students for factor replication, and 96 students for test-retest reliability. Confirmatory factor analyses showed that a correlated-factors model and bifactor model yielded acceptable model fit, while a unidimensional model fitted poorly. These findings were confirmed in the replication sample. Results showed contributions from a general common factor, as well as modality-specific factors. The latter accounted for less variance than the general factor, but could still detect theoretically meaningful group differences. The MUSEQ showed good reliability, construct validity, and could discriminate non-clinical and clinical groups. The MUSEQ offers a reliable means of measuring hallucinations and other USE in six different modalities.

Stimulus modality

Modalities

Modality (human–computer interaction)

Replication

10.3389/fpsyg.2017.01363

Cite

Citations (41)

Inner speech impairments in autism

Journal of Child Psychology and Psychiatry (2006)

Andrew J. O. Whitehouse Murray T. Maybery Kevin Durkin

Background: Three experiments investigated the role of inner speech deficit in cognitive performances of children with autism. Methods: Experiment 1 compared children with autism with ability‐matched controls on a verbal recall task presenting pictures and words. Experiment 2 used pictures for which the typical names were either single syllable or multisyllable. Two encoding conditions manipulated the use of verbal encoding. Experiment 3 employed a task‐switching paradigm for which performance has been shown to be contingent upon inner speech. Results: In Experiment 1, children with autism demonstrated a lower picture‐superiority effect compared to controls. In Experiment 2, the children with autism showed a lower word‐length effect when pictures were presented alone, but a more substantial word‐length effect in a condition requiring overt labelling. In Experiment 3, articulatory suppression affected the task‐switching performance of the control participants only. Conclusions: Individuals with autism have limitations in their use of inner speech.

10.1111/j.1469-7610.2006.01624.x

Cite

Citations (135)

Chapter 10. Atypical cerebral lateralisation and language impairment in autism

Trends in language acquisition research (2014)

Lauren P. Hollier Murray T. Maybery Andrew J. O. Whitehouse

Autism is among the most severe, prevalent and heritable of all neurodevelopmental disorders. However, the factors causing autism are still unclear. Language difficulties are at the core of autism, and any aetiological theory must incorporate a plausible explanation of this symptom. The development of cerebral lateralisation has long been theorised to be associated with language impairment. This chapter reviews the empirical evidence linking cerebral lateralisation and language impairment in both typical and atypical development, with a particular focus on the communication difficulties characteristic of autism. Potential causal pathways are also considered, such as fetal testosterone exposure. Finally, methodological limitations in this area and future avenues for research are discussed.

Language impairment

Etiology

10.1075/tilar.11.11hol

Cite

Citations (2)

Fetal androgen exposure and pragmatic language ability of girls in middle childhood: Implications for the extreme male-brain theory of autism

Psychoneuroendocrinology (2010)

Andrew J. O. Whitehouse Murray T. Maybery Roger Hart Eugen Mattes John P. Newnham

Digit ratio

Affect

10.1016/j.psyneuen.2010.02.007

Cite

Citations (46)

An investigation of a novel broad autism phenotype: increased facial masculinity among parents of children on the autism spectrum

Proceedings of the Royal Society B Biological Sciences (2022)

Diana Weiting Tan Syed Zulqarnain Gilani Gail A. Alvares Ajmal Mian Andrew J. O. Whitehouse

The broad autism phenotype commonly refers to sub-clinical levels of autistic-like behaviour and cognition presented in biological relatives of autistic people. In a recent study, we reported findings suggesting that the broad autism phenotype may also be expressed in facial morphology, specifically increased facial masculinity. Increased facial masculinity has been reported among autistic children, as well as their non-autistic siblings. The present study builds on our previous findings by investigating the presence of increased facial masculinity among non-autistic parents of autistic children. Using a previously established method, a 'facial masculinity score' and several facial distances were calculated for each three-dimensional facial image of 192 parents of autistic children (58 males, 134 females) and 163 age-matched parents of non-autistic children (50 males, 113 females). While controlling for facial area and age, significantly higher masculinity scores and larger (more masculine) facial distances were observed in parents of autistic children relative to the comparison group, with effect sizes ranging from small to medium (0.16 ≤ d ≤ .41), regardless of sex. These findings add to an accumulating evidence base that the broad autism phenotype is expressed in physical characteristics and suggest that both maternal and paternal pathways are implicated in masculinized facial morphology.

Autistic traits

10.1098/rspb.2022.0143

Cite

Citations (3)

Additional file 2 of The Comprehensive Autistic Trait Inventory (CATI): development and validation of a new measure of autistic traits in the general population

Figshare (2021)

Michael C. W. English Gilles E. Gignac Troy A. W. Visser Andrew J. O. Whitehouse James T. Enns

Additional file 2. PDF versions of the CATI and scoring key.

Autistic traits

Trait

Autistic spectrum disorder

10.6084/m9.figshare.14608421

Cite

Citations (0)

Sex‐specific variation in facial masculinity/femininity associated with autistic traits in the general population

British Journal of Psychology (2019)

Diana Weiting Tan Murray T. Maybery Louise Ewing Jia‐Xin Tay Peter R. Eastwood

Reports linking prenatal testosterone exposure to autistic traits and to a masculinized face structure have motivated research investigating whether autism is associated with facial masculinization. This association has been reported with greater consistency for females than for males, in studies comparing groups with high and low levels of autistic traits. In the present study, we conducted two experiments to examine facial masculinity/femininity in 151 neurotypical adults selected for either low, mid‐range, or high levels of autistic traits. In the first experiment, their three‐dimensional facial photographs were subjectively rated by 41 raters for masculinity/femininity and were objectively analysed. In the second experiment, we generated 6‐face composite images, which were rated by another 36 raters. Across both experiments, findings were consistent for ratings of photographs and composite images. For females, a linear relationship was observed where femininity ratings decreased as a function of higher levels of autistic traits. For males, we found a U‐shaped function where males with mid‐range levels of traits were rated lowest on masculinity. Objective facial analyses revealed that higher levels of autistic traits were associated with less feminine facial structures in females and less masculine structures in males. These results suggest sex‐specific relationships between autistic traits and facial masculinity/femininity.

Neurotypical

Autistic traits

10.1111/bjop.12436

Cite

Citations (8)

Chapter 4. Do autism spectrum disorders and specific language impairment have a shared aetiology?

Trends in language acquisition research (2014)

Lauren Taylor Murray T. Maybery Andrew J. O. Whitehouse

There has been considerable debate in the literature regarding the aetiological relationship between Autism Spectrum Disorder (ASD) and Specific Language Impairment (SLI). While some authors have suggested that similarities in the language phenotypes of the conditions represent a theoretically significant aetiological overlap, others argue that the overlap is superficial and not reflective of shared causes. This chapter reviews the published literature with regard to the hypothesised aetiological relationship between ASD and SLI. Specifically, we review studies investigating behavioural and linguistic overlap between ASD and SLI, before considering results of neurological and molecular genetic studies. While several studies have highlighted phenotypic similarities between ASD and SLI, there is a considerable degree of inconsistency throughout the literature and current evidence does not support aetiological overlap. Important avenues for future research are investigating whether there are shared neurological and genetic pathways contributing to ASD and SLI.

Etiology

Specific Language Impairment

10.1075/tilar.11.05tay

Cite

Citations (0)

A prospective study of fetal head growth, autistic traits and autism spectrum disorder

Autism Research (2018)

Laura M. E. Blanken Alena Dass Gail A. Alvares Jan van der Ende Nikita K. Schoemaker

Altered trajectories of brain growth are often reported in Autism Spectrum Disorder (ASD), particularly during the first year of life. However, less is known about prenatal head growth trajectories, and no study has examined the relation with postnatal autistic symptom severity. The current study prospectively examined the association between fetal head growth and the spectrum of autistic symptom severity in two large population‐based cohorts, including a sample of individuals with clinically diagnosed ASD. This study included 3,820 children from two longitudinal prenatal cohorts in The Netherlands and Australia, comprising 60 individuals with a confirmed diagnosis of ASD. Latent growth curve models were used to examine the relationship between fetal head circumference measured at three different time points and autistic traits measured in postnatal life using either the Social Responsiveness Scale or the Autism‐Spectrum Quotient. While lower initial prenatal HC was weakly associated with increasing autistic traits in the Dutch cohort, this relationship was not observed in the Australian cohort, nor when the two cohorts were analysed together. No differences in prenatal head growth were found between individuals with ASD and controls. This large population‐based study identified no consistent association across two cohorts between prenatal head growth and postnatal autistic traits. Our mixed findings suggest that further research in this area is needed. Autism Res 2018, 11: 602–612 . © 2018 The Authors Autism Research published by International Society for Autism Research and Wiley Periodicals, Inc. Lay Summary It is not known whether different patterns of postnatal brain growth in Autism Spectrum Disorder (ASD) also occurs prenatally. We examined fetal head growth and autistic symptoms in two large groups from The Netherlands and Australia. Lower initial prenatal head circumference was associated with autistic traits in the Dutch, but not the Australian, group. No differences in head growth were found in individuals with ASD and controls when the data was combined. Our mixed findings suggest that more research in this area is needed.

Generation R

Autistic traits

Fetal head

10.1002/aur.1921

Cite

Citations (25)