Showing posts with label alexithymia. Show all posts
Showing posts with label alexithymia. Show all posts

Wednesday, 3 July 2019

"being autistic does not always make someone bad at seeing the world from another's viewpoint"

The quote titling today's post - "being autistic does not always make someone bad at seeing the world from another's viewpoint" - comes from the findings reported by Shisei Tei and colleagues [1].

Their research paper observing that "more careful attention should be paid to the idea of egocentricity in individuals with ASCs [autism spectrum conditions]" is part of a research mash-up post today that also includes the findings reported by Hidetsugu Komeda and colleagues [2]. Both papers help to put a 'real-life perspective' on to sweeping generalisations that everyone on the autism spectrum is completely egocentric and lack the capacity to help others.

The Tei study was initially based on the idea that: "Individuals with autism spectrum conditions (ASCs) often experience difficulty and confusion in acknowledging others' perspectives and arguably exhibit egocentricity." Egocentrism can mean a few things, but all have in common that self is the be-all-and-end-all, and the interests, beliefs and attitudes of others are of secondary regard. It's a concept that we all engage in to some degree at certain times of development and maturation, and from an evolutionary perspective, probably served (and continues to serve) as an important survival mechanism. But: "whether this egocentricity necessarily results in selfish behavior during social situations remains a matter of debate." Tei et al examined the possibility of a link between egocentricity and selfish behaviour in the context of autism...

I'm not totally au fait with all the ins-and-outs of the Tei study techniques - "derived from cognitive psychology and behavioral economics" - but it looks like it was quite a bit to do with response times to a "computerized visuospatial perspective-taking task (VPT)" and the use of a task to measure altruism ("disinterested and selfless concern for the well-being of others"). Compared with a non-autistic control group, they observed some differences among their tested groups but, and it is an important 'but', "having ASCs does not always exhibit selfish behavior during interpersonal communication."

Then we have the findings reported by Komeda et al. The starting point was a sweeping one: "Individuals with Autism Spectrum Disorder (ASD) often lack cognitive empathy, so they experience difficulty in empathizing with others." Their study was perhaps less complicated than the Tei study as a group of adults with autism and control non-autistic adults were asked to read a number of stories - "(12 stories featured protagonists with characteristics of ASD and the other 12 featured TD protagonists)" - and answer questions about said stories. Questioning included "How did the protagonist feel?" and "Would you help if the protagonist were in trouble?"

Results again were interesting. So: "individuals with ASD empathize with other people who have ASD and are motivated to help other people with ASD." Based also on examination of autism spectrum quotient (AQ) scores and when "controlling for alexithymia" (marked dysfunction in emotional awareness, social attachment, and interpersonal relating), authors concluded that: "the reason why individuals with ASD are considered to have limited cognitive empathy and helping behaviors could be related to alexithymia and the lack of social skills and attention to detail, which are related to atypical perception."

OK, both the Tei and Komeda findings have to be put into some perspective. They don't for example, completely exonerate the social cognition or perspective-taking issues that are seen in autism. They can't do so either, because issues with social interaction for example, are a core facet of a diagnosis of autism. In effect, they define autism. I should also add that the reliance on participants who were very much cognitively able in both the Tei and Komeda studies means that one has to be quite careful of generalising such findings to all quarters of the autism spectrum, particularly the under-studied and under-represented (see here) parts.

But as I mentioned earlier in this post, the combined findings do help to put a 'real-life perspective' on things; specifically that such core issues that have defined autism for many, many years - empathy and perspective-taking - don't always manifest in a uniform fashion across people or situations. They also suggest that various other variables also might serve to promote issues with empathy and perspective-taking in relation to autism, as per mention of alexithymia; something that has been noted before by other independent study (see here).

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[1] Tei S. et al. Egocentric biases and atypical generosity in autistic individuals. Autism Res. 2019 May 17.

[2] Komeda H. et al. Do individuals with autism spectrum disorders help other people with autism spectrum disorders?: An investigation of empathy and helping behaviors in adults with ASD. Front. Psychiatry. 2019. May 13.

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Thursday, 30 May 2019

What's potentially behind self-injury coincidental to autism?

"Alexithymia, depression, anxiety and sensory differences may place some autistic individuals at especial risk of self-injury."

Those were some of the conclusions reached in the paper published by Rachel Moseley and colleagues [1] (open-access) following their investigation of an important topic - non-suicidal self-injury (NSSI) - in relation to autism "without intellectual disability." Self-injurious behaviour (SIB) is not a pleasant topic to talk about, but is important to quite a few people diagnosed as being on the autism spectrum (see here and see here).

Drawing on data provided by over one hundred adults with autism (autistic adults if you prefer), half of whom were categorised as 'current self-harmers', a quarter of whom were 'historic self-harmers' and a quarter of whom were 'non self-harmers', researchers set to work "to examine alexithymia, mentalising impairments, autistic traits and sensory differences" as possible important variables for NSSI. Alexithymia by the way, is described as "the subclinical inability to identify and describe emotions in the self." Researchers utilised several different questionnaires including a tool specifically designed to test for NSSI: The Non-Suicidal Self-Injury Assessment Tool (NSSI-AT), a "comprehensive instrument [that] documents the nature and bodily location of any self-injurious behaviours; their functional utility; their recency, frequency and likelihood of reoccurrence; the age of onset of self-injury; the severity of injuries" among other things. Results were collated and analysed.

Alongside the headline finding that was included in the opening sentence to this post, other interesting details also emerged from the data. So: "Of the 76 current and historic self-harmers, 60 could recall the onset of self-injury at an average age of 15.1 years." Bearing in mind that 15.1 years was an average age of onset, such a finding potentially provides a developmental window when self-harming could maybe be screened for and interventions put in place. Indeed, from what I understand, this is a fairly typical time of onset for self-injury in the general population minus any sweeping generalisations.

Also: "The most common function of NSSI was the regulation of low-energy affective states (depression, dissociation), followed by the regulation of high-energy states such as anger and anxiety." There's an important word in that last sentence - regulation - that needs a lot more inquiry. It implies that self-injury is not just mindless violence against self but might actually serve some sort of purpose. Indeed, other recent papers have also mentioned regulation in the context of self-injury [2] too. Allied to other research suggesting that 'challenging behvaiours' might for example, under some circumstances, also serve a purpose (see here) and how self-injury could present in a variety of ways (see here), and there are leads to follow. Indeed, it could imply that teaching regulatory processes such as those linked to exercise (see here) or the use of meditative techniques (see here) could be worthwhile for some at least.

And just before I leave this topic, I'm minded to bring in another issue that could be investigated in the context of self-injury: interoception and body awareness in the context of autism (see here). Minus any psychobabble, interoception represents "the sense of the physiological condition of the body." It strikes me as possible that a reduced capacity for interoception in relation to autism, as has been talked about in other independent study [3], could be another important variable in the cycle of self-injury and another point of intervention...

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[1] Moseley RL. et al. A ‘choice’, an ‘addiction’, a way ‘out of the lost’: exploring self-injury in autistic people without intellectual disability. Molecular Autism. 2019; 10: 18.

[2] Weiner L. et al. A case study of suicidality presenting as a restricted interest in autism spectrum disorder. BMC Psychiatry. 2019; 19: 126.

[3] Fiene L. & Brownlow C. Investigating interoception and body awareness in adults with and without autism spectrum disorder. Autism Res. 2015 Dec;8(6):709-16.

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Monday, 22 August 2016

"Theory of mind is not theory of emotion"

A rather interesting paper by Beth Oakley and colleagues [1] (open-access might be available here) appeared recently providing a "cautionary note on the Reading the Mind in the Eyes Test" [2], one of the premier assessments thought to offer a performance-based measure "involving mental state attribution and complex facial emotion recognition from photographs where only the eye region of the face is available."

Most people with some knowledge about autism research history will have heard about the proposal that Theory of Mind (ToM) - a term often used to cover that "mental state attribution" - might be affected in cases of autism (see here) and indeed, how careers and reputations have been made on such a generalisation. These days ToM is less and less being talked about as the heterogeneity of the autism spectrum becomes better understood and how specificity in particular, has proved to be an Achilles' heel for the concept (see here).

One of the emerging ideas to account for some of the results obtained using the Reading the Mind in the Eyes test (RMET) in cases of autism is that alexithymia - a construct characterised by an inability to describe or understand emotions - might actually be the more important issue than autism per se. The idea being that alexithymia can co-occur alongside some autism and that for those presenting with that combination, ToM and assessments like RMET might be problematic.

So Oakley et al delved a little deeper into some of the hows and whys of some of the RMET results obtained with autism in mind and whether "the RMET indexes emotion recognition, associated with alexithymia, or ToM, associated with ASD [autism spectrum disorder]." They did it on the basis of examining a small group of participants diagnosed with an ASD (n=19) alongside 24 participants without autism. Alexithymia was assessed using "the 20-item Toronto Alexithymia Scale (TAS–20)." Autism symptoms severity was measured using the Autism Spectrum Quotient (50) (oh dear..) and "current functioning" in the autism group was assessed using the gold-standard that is the Autism Diagnostic Observation Schedule (ADOS) (more like it).

Results: well bearing in mind the small participant numbers and the need for further independent replication of the findings, "Reading the Mind in the Eyes Test (RMET) performance was unaffected by autism spectrum disorder... but was negatively impacted by alexithymia." Indeed, we are told that: "Six ASD and eight control participants met the criterion for severe alexithymia, with a score of 61 or above on the 20-item Toronto Alexithymia Scale (TAS–20)." Further: "in individuals with ASD and comorbid alexithymia, it is alexithymia, rather than ASD per se, that impairs emotion recognition performance."

I probably don't need to say too much more about this line of research and its important implications outside of perhaps the requirement to screen for alexithymia as and when autism is diagnosed. Insofar as the idea of an "alexithymia hypothesis of emotion-related deficits in ASD", this does sound like a tantalising option but again, I'd be slightly reluctant to go all-in with yet another grand theory for autism given the trials and tribulations that psychological theories in particular have faced over the years with autism in mind. As to other potential impacts from work such as this, well, assertions that a lack of empathy might the root of all evil (see here) also made by proponents of ToM might do well to take on board a role for alexithymia in any future judgements...

Minus any charges of plagiarism, I leave you with the general summary from Oakley and colleagues:

"This study suggests that a highly popular test of the ability to detect what someone else is thinking—the Reading the Mind in the Eyes Test—is instead a test of the ability to recognize another person’s emotional expression. This is important because it suggests that patients who perform badly on this test may still be able to understand another person’s mental state and that, conversely, patients who perform well on this test may still have difficulties in mental state understanding."

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[1] Oakley BF. et al. Theory of mind is not theory of emotion: A cautionary note on the Reading the Mind in the Eyes Test. J Abnorm Psychol. 2016 Aug;125(6):818-23.

[2] Baron-Cohen S. et al. The “Reading the Mind in the Eyes” Test: Complete Absence of Typical Sex Difference in ~400 Men and Women with Autism. PLoS ONE. 2015; 10(8).

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ResearchBlogging.org Oakley BF, Brewer R, Bird G, & Catmur C (2016). Theory of mind is not theory of emotion: A cautionary note on the Reading the Mind in the Eyes Test. Journal of abnormal psychology, 125 (6), 818-23 PMID: 27505409