Article ; Online: Sex differences in mental rotation and how they add to the understanding of autism.
PloS one
2015 Volume 10, Issue 4, Page(s) e0124628
Abstract: ... on our understanding of autism spectrum disorders (ASD). However, it is still debated how the sex difference in MR ... Mental Rotation (MR) tasks. Such sex differences have been suggested to bear implications ... associated with sex differences and with ASD, employing the Intuitive Physics Test (IPT). Results showed ...
| Abstract | The most consistent cognitive sex differences have been found in the visuo-spatial domain, using Mental Rotation (MR) tasks. Such sex differences have been suggested to bear implications on our understanding of autism spectrum disorders (ASD). However, it is still debated how the sex difference in MR performance relates to differences between individuals with ASD compared to typically developed control persons (TD). To provide a detailed exploration of sex differences in MR performance, we studied rotational (indicated by slopes) and non-rotational aspects (indicated by intercepts) of the MR task in TD individuals (total N = 50). Second-to-fourth digit length ratios (2D:4D) were measured to investigate the associations between prenatal testosterone and performance on MR tasks. Handedness was assessed by the use of the Edinburgh Handedness Inventory in order to examine the relation between handedness and MR performance. In addition, we investigated the relation of spatial to systemising abilities, both of which have been associated with sex differences and with ASD, employing the Intuitive Physics Test (IPT). Results showed a male advantage in rotational aspects of the MR task, which correlated with IPT results. These findings are in contrast to the MR performance of individuals with ASD who have been shown to outperform TD persons in the non-rotational aspects of the MR task. These results suggest that the differences in MR performance due to ASD are different from sex-related differences in TD persons, in other words, ASD is not a simple and continuous extension of the male cognitive profile into the psychopathological range as the extreme male brain hypothesis (EMB) of ASD would suggest. |
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| MeSH term(s) | Adult ; Autistic Disorder/physiopathology ; Autistic Disorder/psychology ; Female ; Humans ; Male ; Young Adult |
| Language | English |
| Publishing date | 2015 |
| Publishing country | United States |
| Document type | Journal Article |
| ISSN | 1932-6203 |
| ISSN (online) | 1932-6203 |
| DOI | 10.1371/journal.pone.0124628 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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