Mediators of negative content and voice-related distress in a diverse sample of clinical and non-clinical voice-hearers.

OBJECTIVES: Negative content in hearing voices (i.e., auditory verbal hallucinations) has been associated with adverse clinical outcomes including voice-related distress. Voice appraisals and responding mindfully to voices are theorized to reduce voice-related distress. This study aimed in examine mediators of the negative content voice-related distress relationship in clinical (those who recently received input from mental health services) and non-clinical voice-hearers. METHODS: One hundred and twenty-one adults (71.9% female; 35.5% mixed or non-white ethnic background) who hear voices were recruited online and completed self-report measures of negative content of voices, voice-related distress, mindfulness of voices, interpretation of loss of control, thought suppression and intrusion. RESULTS: Clinical voice-hearers had significantly higher levels of negative content, voice-related distress and interpretation of loss of control than non-clinical voice-hearers. A mindful approach to voices and interpretation of loss of control mediated the relationship between negative content and voice-related distress across the whole sample. Thought suppression and intrusion did not mediate the relationship. CONCLUSIONS: The results support the use of mindfulness-based psychological intervention to reduce voice-related distress. Further development of valid and reliable measures specifically relating to constructs of voice content, voice-related distress and voice suppression will support further research in this area.

Syllogistic reasoning reveals reduced bias in people with higher autistic-like traits from the general population.

Recent theories of autism have emphasised the cognitive strengths and weaknesses in those with autism, which are also seen to some degree in non-clinical samples with higher autistic-like traits. The dual process theory of autism proposes that people with autism and non-clinical people with a higher degree of autistic-like traits have a propensity to show reduced intuitive processing (automatic and typically faster) alongside enhanced propensity towards deliberative processing (dependent on general cognitive ability and typically slower). This study aimed to further test the dual process theory of autism by investigating syllogistic reasoning (whether a conclusion can be logically deduced from two propositions) in addition to the cognitive reflection test (correct responses to which reflect deliberative processing over-riding intuitive processing) with respect to the degree of autistic-like traits and general cognitive ability in a non-clinical sample of 189 adults. Results showed that higher levels of autistic-like traits were related to lower levels of intuitive processing and higher levels of deliberative processing, which was found across both the syllogistic reasoning and cognitive reflection test measures - over and above the effect of general cognitive ability. The findings are consistent with the dual process theory of autism, and implications for autism are discussed.

Brief Report: Intuitive and Reflective Reasoning in Autism Spectrum Disorder.

Dual Process Theory has recently been applied to Autism spectrum disorder (ASD) to suggest that reasoning by people with ASD and people with higher levels of ASD-like traits can be characterised by reduced intuitive and greater reflective processing. 26 adolescents and adults with ASD and 22 adolescent and adult controls completed an assessment of ASD-like traits, the cognitive reflections test (CRT) to measure intuitive and reflective reasoning and an index of general cognitive ability. The ASD group produced less intuitive responses, and the degree of ASD-like traits showed a negative correlation with intuitive responses and positive correlation with reflective responses on the CRT. Together, these results are consistent with ASD being associated with reduced intuitive reasoning and greater deductive reasoning.

Reasoning on the Autism Spectrum: A Dual Process Theory Account.

Dual process theory proposes two distinct reasoning processes in humans, an intuitive style that is rapid and automatic and a deliberative style that is more effortful. However, no study to date has specifically examined these reasoning styles in relation to the autism spectrum. The present studies investigated deliberative and intuitive reasoning profiles in: (1) a non-clinical sample from the general population with varying degrees of autism traits (n = 95), and (2) males diagnosed with ASD (n = 17) versus comparisons (n = 18). Taken together, the results suggest reasoning on the autism spectrum is compatible with the processes proposed by Dual Process Theory and that higher autism traits and ASD are characterised by a consistent bias towards deliberative reasoning (and potentially away from intuition).