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Papers by gaétane deliens

Research in Autism Spectrum Disorders, 2019

Background: Children and adults with Autism Spectrum Disorder (ASD) show a tendency to preferenti... more Background: Children and adults with Autism Spectrum Disorder (ASD) show a tendency to preferentially rely on those referential descriptions that have previously been used by their conversational partner. However, such a tendency may become maladaptive in a situation of interaction with different partners who may introduce alternative lexical descriptions for the same referent. Methods: Six-year-old children with ASD, as well as mental-and verbal-age-matched typically developing (TD) children moved items on a touch-screen following instructions by an experimenter. During the entrainment phase, the experimenter introduced lexical descriptions for all the items. Then, either the original experimenter or a new partner, depending on the condition, used alternative descriptions for some items and kept the same descriptions for others. Accuracy and time to locate items were collected. Results: Relative to TD children, children with ASD had more difficulty in recognizing and interpreting referential descriptions when another description has been previously used. Whether a new description was introduced by a new or the original experimenter had no effect in any group. Conclusion: Referential processing in ASD is compromised by impaired ability to confront alternative conceptual perspectives. A potential executive source for these difficulties is discussed. 1. Introduction Impaired communication is one of the core characteristics of Autism Spectrum Disorder (ASD). There is a wide consensus that deficits in social language use can lead to the idiosyncratic behaviours people with ASD frequently display in verbal exchanges, such as lack of narrative cohesion, difficulties in turn-taking, disfluencies, and restricted or unconventional vocabulary (Colle, Baron

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Journal of Environmental Psychology, 2017

The present work investigates the effects of bright light exposure to prevent increased sleepines... more The present work investigates the effects of bright light exposure to prevent increased sleepiness and decreased alertness induced by a dual working memory task in which high cognitive demands (HCL) are adapted to the individual's maximal capacity. In a randomized cross-over study, twenty participants were exposed to two sessions that included 20 minutes of light exposure (dim light or bright light). Subjective sleepiness (Karolinska Sleepiness Scale) and objective alertness (Psychomotor Vigilance Task) were assessed before and after light exposure and before and after performing with the high cognitive demands task. Bright light exposure did not prevent decreased alertness and increased sleepiness prompted by the task. Our results suggest that bright light administered prior to a cognitively demanding task is not beneficial to prevent impairments ensuing from high cognitive demands.

Encephale-revue De Psychiatrie Clinique Biologique Et Therapeutique, 2010

Journal of Experimental Psychology: General, 2021

Research in Autism Spectrum Disorders, 2021

Background: Studies on impression formation in Autism Spectrum Disorder (ASD) have suggested that... more Background: Studies on impression formation in Autism Spectrum Disorder (ASD) have suggested that both ASD and neurotypical (NT) individuals extract paralinguistic cues (e.g., vocal and facial expressions) from brief extracts of social behaviors to form less favorable impressions of the personality traits of ASD individuals than of their NT peers. Yet, discourse studies in ASD have also suggested that there are specific linguistic features (e.g., conjunctions) that can distinguish the speech of ASD individuals from that of NT individuals. This study investigates whether naïve participants with and without autism can perceive discourse features previously identified as characteristic of ASD speech, based on a single exposure to conversation extracts. Methods: A cross-design rating experiment was created whereby a group of ASD and NT adults (blind to diagnosis information) rated audio recordings involving ASD and NT speakers. Rating participants evaluated the recordings using a Likert scale targeting impressions of discourse features. Results: ASD and NT Raters behaved similarly on the ratings of discourse features; evaluating the speech of ASD Speakers less favorably than those of NT Speakers. Conclusion: Our results extend previous findings by showing that linguistic cues also lead to less favorable impressions of the discourse of ASD Speakers, and this from both the perspective of NT and ASD Raters.

info:eu-repo/semantics/nonPublishe

Neuromuscular Disorders, 2018

DI-fusion, le Dépôt institutionnel numérique de l'ULB, est l'outil de référencementde l... more DI-fusion, le Dépôt institutionnel numérique de l'ULB, est l'outil de référencementde la production scientifique de l'ULB.L'interface de recherche DI-fusion permet de consulter les publications des chercheurs de l'ULB et les thèses qui y ont été défendues.