scholarly journals Pathways of Perceptual Primacy: ERP Evidence for Relationships Between Autism Traits and Enhanced Perceptual Functioning

2021 ◽  
Author(s):  
Elizabeth A. Kaplan-Kahn ◽  
Aesoon Park ◽  
Natalie Russo

Autistic individuals show enhanced perceptual functioning on many behavioral tasks. Neurophysiological evidence also supports the conclusion that autistic individuals utilize perceptual processes to a greater extent than neurotypical comparisons to support problem solving and reasoning; however, how atypicalities in early perceptual processing influence subsequent cognitive processes remains to be elucidated. The goals of the present study were to test the relationship between early perceptual and subsequent cognitive event related potentials (ERPs) and their relationship to levels of autism traits. 62 neurotypical adults completed the Autism Spectrum Quotient (AQ) and participated in an ERP task. Path models were compared to test causal relationships among an early perceptual ERP (the P1 component), a subsequent cognitive ERP (the N400 effect), and the Attention to Detail subscale of the AQ. The size of participants’ P1 components was positively correlated with the size of their N400 effect and their Attention to Detail score. Model comparisons supported the model specifying that variation in Attention to Detail scores predicted meaningful differences in participants’ ERP waveforms. The relationship between Attention to Detail scores and the size of the N400 effect was significantly mediated by the size of the P1 effect. This study revealed that neurotypical adults with higher levels of Attention to Detail show larger P1 differences, which, in turn, correspond to larger N400 effects. Findings support the Enhanced Perceptual Functioning model of autism, suggesting that early perceptual processing differences may cascade forward and result in modifications to later cognitive mechanisms.

Author(s):  
Kimmo Eriksson

AbstractPrevious research shows that individuals with Asperger syndrome or high-functioning autism tend to have impaired processing of humor and laugh at things that are not commonly found funny. Here the relationship between humor styles and the broader autism phenotype was investigated in a sample of the general population. The autism-spectrum quotient (AQ) and the humor styles questionnaire (HSQ) were administered to six hundred US participants recruited through an Internet-based service. On the whole, high scores on AQ were negatively related to positive humor styles and unrelated to negative humor styles. However, AQ subscales representing different autism-spectrum traits exhibited different patterns. In particular, the factor “poor mind-reading” was associated with higher scores on negative humor styles and the factor “attention to detail” was associated with higher scores on all humor styles, suggesting a more nuanced picture of the relationship between autism-spectrum traits and humor.


2021 ◽  
Vol 12 ◽  
Author(s):  
Molly S. Helt ◽  
Taylor M. Sorensen ◽  
Rachel J. Scheub ◽  
Mira B. Nakhle ◽  
Anna C. Luddy

Both individuals with diagnosed with Autism Spectrum Disorder (ASD) and individuals high in psychopathic traits show reduced susceptibility to contagious yawning; that is, yawning after seeing or hearing another person yawn. Yet it is unclear whether the same underlying processes (e.g., reduced eye gaze) are responsible for the relationship between reduced contagion and these very different types of clinical traits. College Students (n = 97) watched videos of individuals yawning or scratching (a form of contagion not reliant on eye gaze for transmission) while their eye movements were tracked. They completed the Interpersonal Reactivity Index (IRI), the Autism-Spectrum Quotient (AQ), the Psychopathy Personality Inventory-Revised (PPI-R), and the Adolescent and Adult Sensory Processing Disorder Checklist. Both psychopathic traits and autistic traits showed an inverse relationship to contagious yawning, consistent with previous research. However, the relationship between autistic (but not psychopathic) traits and contagious yawning was moderated by eye gaze. Furthermore, participants high in autistic traits showed typical levels of contagious itching whereas adults high in psychopathic traits showed diminished itch contagion. Finally, only psychopathic traits were associated with lower overall levels of empathy. The findings imply that the underlying processes contributing to the disruptions in contagious yawning amongst individuals high in autistic vs. psychopathic traits are distinct. In contrast to adults high in psychopathic traits, diminished contagion may appear amongst people with high levels of autistic traits secondary to diminished attention to the faces of others, and in the absence of a background deficit in emotional empathy.


2019 ◽  
Vol 27 (4) ◽  
pp. 403-426
Author(s):  
Helen Clegg ◽  
Roz Collings ◽  
Elizabeth C. Roxburgh

AbstractTherianthropy is the belief that one is at least part non-human animal. This study aimed to address the dichotomization surrounding therianthropy in relation to mental health and wellbeing. One hundred and twelve therians and 265 non-therians completed Ryff’s Scales of Psychological Wellbeing, the O-LIFE questionnaire, and the Autism Spectrum Quotient. The results showed that therians scored lower on variables that are associated with positive social relationships. Such findings may be explained by cognitive factors and/or social factors that are associated with the stigmatization of cross-species identities. However, being a therian moderated the relationship between both autism and introverted anhedonia in relation to autonomy. Thus, a therian identity may act as a protective factor for those experiencing higher levels of autism and schizotypy.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jing Meng ◽  
Zuoshan Li ◽  
Lin Shen

Abstract This study tested the hypothesis that autistic traits influence the neuronal habituation that underlies the processing of others’ pain. Based on their autism-spectrum quotient (AQ), two groups of participants were classified according to their autistic traits: High-AQ and Low-AQ groups. Their event-related potentials in response to trains of three identical audio recordings, exhibiting either painful or neutral feelings of others, were compared during three experimental tasks. (1) In a Pain Judgment Task, participants were instructed to focus on pain-related cues in the presented audio recordings. (2) In a Gender Judgment Task, participants were instructed to focus on non-pain-related cues in the presented audio recordings. (3) In a Passive Listening Task, participants were instructed to passively listen. In the High-AQ group, an altered empathic pattern of habituation, indexed by frontal-central P2 responses of the second repeated painful audio recordings, was found during the Passive Listening Task. Nevertheless, both High-AQ and Low-AQ groups exhibited similar patterns of habituation to hearing others’ voices, both neutral and painful, in the Pain Judgment and Gender Judgment Tasks. These results suggest altered empathic neuronal habituation in the passive processing of others’ vocal pain by individuals with autistic traits.


2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
M. Mackus ◽  
D. de Kruijff ◽  
L. S. Otten ◽  
A. D. Kraneveld ◽  
J. Garssen ◽  
...  

It has been suggested that the second (2D, index finger) to fourth (4D, ring finger) digit ratio, 2D : 4D, may be a biomarker for the risk of developing autism. The aim of the current study was to determine the usefulness of the 2D : 4D digit ratio as biomarker for autistic traits. N=401 healthy young volunteers participated in the study. For both hands, digit lengths were measured using digital Vernier calipers. In addition to demographics, the Autism Spectrum Quotient (AQ) questionnaire was completed, comprised of five subscales, assessing “social insights and behavior,” “attention switching,” “communication,” “imagination,” and “attention to detail.” Overall, no significant correlations were observed between the AQ total score, its subscales, and the 2D : 4D digit ratio. For women, the left hand 2D : 4D digit ratio correlated significantly with the subscale score “communication” (r=-0.142; p=0.036). For men, a significant positive correlation was found between the left 2D : 4D digit ratio and the total AQ score (r=0.157; p=0.042) and AQ subscale “attention switching” (r=0.182; p=0.017). In conclusion, gender specific associations between the 2D : 4D digit ratio and specific autism traits were observed, which were stronger in men than in women. Future studies should be conducted in patients that are formally diagnosed with autism.


2020 ◽  
Vol 9 (7) ◽  
pp. 2306
Author(s):  
Vilfredo De Pascalis ◽  
Giuliana Cirillo ◽  
Arianna Vecchio ◽  
Joseph Ciorciari

This study explored the electrocortical correlates of conscious and nonconscious perceptions of emotionally laden faces in neurotypical adult women with varying levels of autistic-like traits (Autism Spectrum Quotient—AQ). Event-related potentials (ERPs) were recorded during the viewing of backward-masked images for happy, neutral, and sad faces presented either below (16 ms—subliminal) or above the level of visual conscious awareness (167 ms—supraliminal). Sad compared to happy faces elicited larger frontal-central N1, N2, and occipital P3 waves. We observed larger N1 amplitudes to sad faces than to happy and neutral faces in High-AQ (but not Low-AQ) scorers. Additionally, High-AQ scorers had a relatively larger P3 at the occipital region to sad faces. Regardless of the AQ score, subliminal perceived emotional faces elicited shorter N1, N2, and P3 latencies than supraliminal faces. Happy and sad faces had shorter N170 latency in the supraliminal than subliminal condition. High-AQ participants had a longer N1 latency over the occipital region than Low-AQ ones. In Low-AQ individuals (but not in High-AQ ones), emotional recognition with female faces produced a longer N170 latency than with male faces. N4 latency was shorter to female faces than male faces. These findings are discussed in view of their clinical implications and extension to autism.


2017 ◽  
Vol 2017 ◽  
pp. 1-10
Author(s):  
Mitsuhiko Ishikawa ◽  
Shoji Itakura ◽  
Hiroki C. Tanabe

Limited use of contextual information has been suggested as a way of understanding cognition in people with autism spectrum disorder (ASD). However, it has also been argued that individuals with ASD may have difficulties inferring others’ mental states. Here, we examined how individuals with different levels of autistic traits respond to contextual deviations by measuring event-related potentials that reflect context usage. The Autism Spectrum Quotient (AQ) was used to quantify autistic-like traits in 28 university students, and 19 participants were defined as Low or High AQ groups. To additionally examine inferences about mental state, two belief conditions (with or without false belief) were included. Participants read short stories in which the final sentence included either an expected or an unexpected word and rated the word’s degree of deviation from expectation. P300 waveform analysis revealed that unexpected words were associated with larger P300 waveforms for the Low AQ group, but smaller P300 responses in the High AQ group. Additionally, AQ social skill subscores were positively correlated with evaluation times in the Unexpected condition, whether a character’s belief was false or not. This suggests that autistic traits can affect responses to unexpected events, possibly because of decreased availability of context information.


2018 ◽  
Vol 122 (6) ◽  
pp. 2282-2297
Author(s):  
Kai Nagase

Extant research regarding humor appreciation in individuals with autism spectrum disorder has been equivocal. This study aims to clarify the relationship between the severity of autism spectrum disorder characteristics and humor appreciation in typically developing individuals. We hypothesized that the severity of autistic traits would have a U-shaped linear relationship with humor appreciation. Eighty typically developing undergraduates between the ages of 18 and 22 years ( Mage = 20.20; SDage = 1.08) were recruited for this study. They were asked to answer 24 statements, devised to measure humor appreciation, in response to a joke stimulus comprising 12 typically funny daily life occurrences (two statements per episode). The participants also responded to the Japanese version of the Autism-Spectrum Quotient. A significant U-shaped relationship was observed between the severity of autistic traits and appreciation of humor. A similar significant U-shaped relationship was seen between humor appreciation and the Autism-Spectrum Quotient subscales of attention switching, communication, and imagination. Humor appreciation showed no significant U-shaped relationship with the Autism-Spectrum Quotient subscales of social skills and local details. This study identified ways that autistic traits may influence how people appreciate humor. These findings are discussed in relation to cognitive processes underlying humor appreciation.


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