Intact counterfactual emotion processing in autism spectrum disorder: Evidence from eye-tracking

Exploring power-law behavior in human gaze shifts across tasks and populations

Visual perception is an integral part of human cognition. Vision comprises sampling information and processing them. Tasks and stimuli influence human sampling behavior, while cognitive and neurological processing mechanisms remain unchanged. A question still controversial today is whether the components interact with each other. Some theories see the components of visual cognition as separate and their influence on gaze behavior as additive. Others see gaze behavior as an emergent structure of visual cognition that emerges through multiplicative interactions. One way to approach this problem is to examine the magnitude of gaze shifts. Demonstrating that gaze shifts show a constant behavior across tasks would argue for the existence of an independent component in human visual behavior. However, studies attempting to generally describe gaze shift magnitudes deliver contradictory results. In this work, we analyze data from numerous experiments to advance the debate on visual cognition by providing a more comprehensive view of visual behavior. The data show that the magnitude of eye movements, also called saccades, cannot be described by a consistent distribution across different experiments. However, we also propose a new way of measuring the magnitude of saccades: relative saccade lengths. We find that a saccade's length relative to the preceding saccade's length consistently follows a power-law distribution. We observe this distribution for all datasets we analyze, regardless of the task, stimulus, age, or native language of the participants. Our results indicate the existence of an independent component utilized by other cognitive processes without interacting with them. This suggests that a part of human visual cognition is based on an additive component that does not depend on stimulus features.

The effect of congruent emotional context on semantic memory during discourse comprehension

This study examined the effect of emotional context on the semantic memory of subsequent emotional words during discourse comprehension in two eye-tracking experiments. Four-sentence discourses were used as experimental materials. The first three sentences established an emotional or neutral context, while the fourth contained an emotional target word consistent with the preceding emotional context's valence. The discourses were presented twice using the text change paradigm, where the target words were replaced with strongly - or weakly-related words during the second presentation. Thus, four conditions were included in the present study: Emotional-strongly-related, Emotional-weakly-related, Neutral-strongly-related and Neutral-weakly-related. In Experiment 1, negative contexts and negative target words were used, whereas in Experiment 2, positive contexts and positive target words were used. The results revealed a semantic relatedness effect, whereby the strongly-related words have lower change detection accuracy, longer reading times and more fixations in both Experiments 1 and 2. Furthermore, across both experiments, the magnitude of the semantic relatedness effect was greater in the emotionally congruent contexts than in the neutral contexts. These results suggest that emotional context could increase efforts to change the discrimination of subsequent words and demonstrate an important role of emotional context on semantic memory during discourse processing.

Levels of Self-representation and Their Sociocognitive Correlates in Late-Diagnosed Autistic Adults

The cognitive representation of oneself is central to other sociocognitive processes, including relations with others. It is reflected in faster, more accurate processing of self-relevant information, a "self-prioritisation effect" (SPE) which is inconsistent across studies in autism. Across two tasks with autistic and non-autistic participants, we explored the SPE and its relationship to autistic traits, mentalizing ability and loneliness. A SPE was intact in both groups, but together the two tasks suggested a reduced tendency of late-diagnosed autistic participants to differentiate between familiar and unfamiliar others and greater ease disengaging from the self-concept. Correlations too revealed a complex picture, which we attempt to explore and disentangle with reference to the inconsistency across self-processing studies in autism, highlighting implications for future research.

Language development, reading and word learning in Autism Spectrum Disorder (ASD): a review on eye tracking studies

Objectives: The purpose of this article is to review research that has been conducted over the past five years on language development, reading skills and word learning with the use of the eye tracking machine as regards the population with autism spectrum disorder (ASD) in comparison to typically developed population. Materials and methods: A combination of relevant terms from Google Scholar, Research Gate and PsychINFO databases was used and as a result 24 studies emerged. The total number of studies that met the inclusion criteria was 21. Results: Studies focusing on the language development of people with ASD have presented significant findings regarding vocabulary processing and the preferential focus on specific stimuli (images, audio) over a wide range of ages that in some cases have not been investigated until then. Furthermore, studies on reading have found that adults with ASD showed a strong preference for images and symbols over texts, longer reading time and performances similar to the typical population in vocabulary processing. Studies on word learning demonstrated that adults with ASD are able to rely on gaze cues in order to learn a new word and they have the ability to use syntactic bootstrapping. For preschool and early school-aged children with ASD the results showed that they are capable of cross-situational learning. Conclusions: This review provides information on the effectiveness of the eye tracking method as a tool that can contribute to the identification of deficits in language processing on the part of individuals with ASD from early childhood to adulthood, and more specifically as regards the domains of language development, reading and word learning.

Autistic Adults are Not Impaired at Maintaining or Switching Between Counterfactual and Factual Worlds: An ERP Study

We report an event-related brain potential (ERP) experiment that tests whether autistic adults are able to maintain and switch between counterfactual and factual worlds. Participants (N = 48) read scenarios that set up a factual or counterfactual scenario, then either maintained the counterfactual world or switched back to the factual world. When the context maintained the world, participants showed appropriate detection of the inconsistent critical word. In contrast, when participants had to switch from a counterfactual to factual world, they initially experienced interference from the counterfactual context, then favoured the factual interpretation of events. None of these effects were modulated by group, despite group-level impairments in Theory of Mind and cognitive flexibility among the autistic adults. These results demonstrate that autistic adults can appropriately use complex contextual cues to maintain and/or update mental representations of counterfactual and factual events.

Perspective influences eye movements during real-life conversation: Mentalising about self versus others in autism

LAY ABSTRACT

Previous lab-based studies suggest that autistic individuals are less attentive to social aspects of their environment. In our study, we recorded the eye movements of autistic and typically developing adults while they engaged in a real-life social interaction with a partner. Results showed that autistic adults were less likely than typically developing adults to look at the experimenter's face, and instead were more likely to look at the background. Moreover, the perspective that was adopted in the conversation (talking about self versus others) modulated the patterns of eye movements in autistic and non-autistic adults. Overall, people spent less time looking at their conversation partner's eyes and face and more time looking at the background, when talking about an unfamiliar other compared to when talking about themselves. This pattern was magnified among autistic adults. We conclude that allocating attention to social information during conversation is cognitively effortful, but this can be mitigated when talking about a topic that is familiar to them.

"Second guessing yourself all the time about what they really mean…": Cognitive differences between autistic and non-autistic adults in understanding implied meaning

This study investigated cognitive differences between autistic and non-autistic people in understanding implied meaning in conversation using a novel computerized test, the Implicature Comprehension Test. Controlling for core language ability, autistic participants (N = 66) were over twice as likely to endorse a non-normative interpretation of an implied meaning and over five times as likely to select "do not know" when asked about the presence of an implied meaning, compared to non-autistic participants (N = 118). A further experiment suggested that the selection of "do not know" reflected a cognitive preference for certainty and explicit communication, and that the normative inference could often be made when the test format was more constrained. Our research supports the hypothesis that autistic individuals can find it challenging to process language in its pragmatic context, and that cognitive preferences play a role in this. LAY SUMMARY: We investigated differences between autistic and non-autistic people in understanding implied meanings in conversation. We found that autistic people were more likely to select a different interpretation of implied meanings compared to other people, and also much more likely to avoid processing implied meanings when the task allowed this. Our research supports the view that autistic people can find it challenging to process indirect meanings, and that they tend to prefer explicit forms of communication.

Children's and parents' looking preferences to gender-typed objects: Evidence from eye tracking

Differences between children's and parents' implicit and explicit gender stereotypes were investigated in two experiments. For the first time, the visual world paradigm compared parents' and 7-8-year-old children's looking preferences toward masculine- and feminine-typed objects stereotypically associated with a story character's gender. In Experiment 1 participants listened to sentences that included a verb that inferred intentional action with an object (e.g., "Lilly/Alexander will play with the toy"), and in Experiment 2 the verb was replaced with a neutral verb (e.g., "Lilly/Alexander will trip over the toy"). A questionnaire assessed participants' explicit gender stereotype endorsement (and knowledge [Experiment 2]) of children's toys. Results revealed that parents and children displayed similar implicit stereotypes, but different explicit stereotypes, to one another. In Experiment 1, both children and parents displayed looking preferences toward the masculine-typed object when the story character was male and looking preferences toward the feminine-typed object when the character was female. No gender effects were found with a neutral verb in Experiment 2, reinforcing the impact of gender stereotypes on implicit processing and showing that the effects are not simply driven by gender stereotypic name-object associations. In the explicit measure, parents did not endorse the gender stereotypes related to toys but rather appeared to be egalitarian, whereas children's responses were gender stereotypic.

Emotional Processing of Ironic Versus Literal Criticism in Autistic and Nonautistic Adults: Evidence From Eye-Tracking

Typically developing adults are able to keep track of story characters' emotional states online while reading. Filik et al. showed that initially, participants expected the victim to be more hurt by ironic comments than literal, but later considered them less hurtful; ironic comments were regarded as more amusing. We examined these processes in autistic adults, since previous research has demonstrated socio-emotional difficulties among autistic people, which may lead to problems processing irony and its related emotional processes despite an intact ability to integrate language in context. We recorded eye movements from autistic and nonautistic adults while they read narratives in which a character (the victim) was either criticized in an ironic or a literal manner by another character (the protagonist). A target sentence then either described the victim as feeling hurt/amused by the comment, or the protagonist as having intended to hurt/amused the victim by making the comment. Results from the nonautistic adults broadly replicated the key findings from Filik et al., supporting the two-stage account. Importantly, the autistic adults did not show comparable two-stage processing of ironic language; they did not differentiate between the emotional responses for victims or protagonists following ironic versus literal criticism. These findings suggest that autistic people experience a specific difficulty taking into account other peoples' communicative intentions (i.e., infer their mental state) to appropriately anticipate emotional responses to an ironic comment. We discuss how these difficulties might link to atypical socio-emotional processing in autism, and the ability to maintain successful real-life social interactions. Autism Res 2020, 13: 563-578. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: In line with research showing that autistic people have difficulties considering others' mental states, we found autistic adults were impaired at distinguishing the emotions and intentions experienced by story characters who received sarcastic comments (e.g., "That was fantastic parking" in a context where someone's parking was particularly bad). These findings highlight the difficulties that autistic people experience taking into account other peoples' intentions during communication to appropriately anticipate their emotional responses. © 2020 International Society for Autism Research, Wiley Periodicals, Inc.

What Can Eye Movements Tell Us about Subtle Cognitive Processing Differences in Autism?

Autism spectrum disorder (ASD) is neurodevelopmental condition principally characterised by impairments in social interaction and communication, and repetitive behaviours and interests. This article reviews the eye movement studies designed to investigate the underlying sampling or processing differences that might account for the principal characteristics of autism. Following a brief summary of a previous review chapter by one of the authors of the current paper, a detailed review of eye movement studies investigating various aspects of processing in autism over the last decade will be presented. The literature will be organised into sections covering different cognitive components, including language and social communication and interaction studies. The aim of the review will be to show how eye movement studies provide a very useful on-line processing measure, allowing us to account for observed differences in behavioural data (accuracy and reaction times). The subtle processing differences that eye movement data reveal in both language and social processing have the potential to impact in the everyday communication domain in autism.