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Brief Report: Significant Differences in Perceived Odor Pleasantness Found in Children with ASD / Michal HRDLICKA in Journal of Autism and Developmental Disorders, 41-4 (April 2011)
[article]
Titre : Brief Report: Significant Differences in Perceived Odor Pleasantness Found in Children with ASD Type de document : Texte imprimé et/ou numérique Auteurs : Michal HRDLICKA, Auteur ; Jan VODICKA, Auteur ; Marketa HAVLOVICOVA, Auteur ; Tomas URBANEK, Auteur ; Marek BLATNY, Auteur ; Iva DUDOVA, Auteur Année de publication : 2011 Article en page(s) : p.524-527 Langues : Anglais (eng) Mots-clés : Autism Asperger’s syndrome Sensory abnormalities Olfactory Pleasantness Sniffin’ Sticks Index. décimale : PER Périodiques Résumé : The aim of our study was to explore possible differences in estimation of odor pleasantness in children with autism spectrum disorders (ASD) compared to controls. Thirty-five patients with Asperger’s syndrome and high functioning autism (mean age 10.8 ± 3.6 years; 31 boys) were compared with 35 healthy control subjects (mean age 10.4 ± 2.4 years; 28 boys). Odor pleasantness was assessed on a 5-point scale using the Sniffin’ Sticks test (Identification part of the test). Patients with ASD, compared to healthy controls, perceived the smell of cinnamon and pineapple as significantly less pleasant (p < 0.05); at the trend level, the same was true of cloves (p < 0.1). The possibility of olfactory dysfunctions as an autism biomarker is discussed. En ligne : http://dx.doi.org/10.1007/s10803-010-1084-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=119
in Journal of Autism and Developmental Disorders > 41-4 (April 2011) . - p.524-527[article] Brief Report: Significant Differences in Perceived Odor Pleasantness Found in Children with ASD [Texte imprimé et/ou numérique] / Michal HRDLICKA, Auteur ; Jan VODICKA, Auteur ; Marketa HAVLOVICOVA, Auteur ; Tomas URBANEK, Auteur ; Marek BLATNY, Auteur ; Iva DUDOVA, Auteur . - 2011 . - p.524-527.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-4 (April 2011) . - p.524-527
Mots-clés : Autism Asperger’s syndrome Sensory abnormalities Olfactory Pleasantness Sniffin’ Sticks Index. décimale : PER Périodiques Résumé : The aim of our study was to explore possible differences in estimation of odor pleasantness in children with autism spectrum disorders (ASD) compared to controls. Thirty-five patients with Asperger’s syndrome and high functioning autism (mean age 10.8 ± 3.6 years; 31 boys) were compared with 35 healthy control subjects (mean age 10.4 ± 2.4 years; 28 boys). Odor pleasantness was assessed on a 5-point scale using the Sniffin’ Sticks test (Identification part of the test). Patients with ASD, compared to healthy controls, perceived the smell of cinnamon and pineapple as significantly less pleasant (p < 0.05); at the trend level, the same was true of cloves (p < 0.1). The possibility of olfactory dysfunctions as an autism biomarker is discussed. En ligne : http://dx.doi.org/10.1007/s10803-010-1084-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=119 Self-reported Pleasantness Ratings and Examiner-Coded Defensiveness in Response to Touch in Children with ASD: Effects of Stimulus Material and Bodily Location / Carissa J. CASCIO in Journal of Autism and Developmental Disorders, 46-5 (May 2016)
[article]
Titre : Self-reported Pleasantness Ratings and Examiner-Coded Defensiveness in Response to Touch in Children with ASD: Effects of Stimulus Material and Bodily Location Type de document : Texte imprimé et/ou numérique Auteurs : Carissa J. CASCIO, Auteur ; Jill LORENZI, Auteur ; Grace T. BARANEK, Auteur Article en page(s) : p.1528-1537 Langues : Anglais (eng) Mots-clés : Touch Tactile Affective Defensiveness Pleasantness Self-report Index. décimale : PER Périodiques Résumé : Tactile defensiveness, characterized by behavioral hyperresponsiveness and negative emotional responses to touch, is a common manifestation of aberrant sensory processing in autism spectrum disorders (ASD) and other developmental disabilities (DD). Variations in tactile defensiveness with the properties of the stimulus and the bodily site of stimulation have been addressed in adults with self-report of perceived tactile pleasantness, but not in children. We presented three materials (pleasant, unpleasant, social) at three bodily sites and measured both examiner-coded defensiveness and self-reported pleasantness from a group of children with ASD and two comparison groups (one with DD, one with typical development (TD)). The main findings were: (1) children with ASD and DD showed significantly more defensiveness reactions and lower pleasantness ratings than the TD group, with higher variability, (2) there was a double dissociation for the effects of material and bodily site of stimulation: while bodily site predicted behavioral defensiveness, material predicted pleasantness rating. Additionally, it was noted that (3) the most pleasant material and the social touch conditions best distinguished ASD and DD from TD on defensiveness, and (4) within the ASD group, social impairment and defensiveness in bodily sites associated with social touch were positively correlated, suggesting a clinically relevant distinction between social and discriminative touch in ASD. En ligne : http://dx.doi.org/10.1007/s10803-013-1961-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288
in Journal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1528-1537[article] Self-reported Pleasantness Ratings and Examiner-Coded Defensiveness in Response to Touch in Children with ASD: Effects of Stimulus Material and Bodily Location [Texte imprimé et/ou numérique] / Carissa J. CASCIO, Auteur ; Jill LORENZI, Auteur ; Grace T. BARANEK, Auteur . - p.1528-1537.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1528-1537
Mots-clés : Touch Tactile Affective Defensiveness Pleasantness Self-report Index. décimale : PER Périodiques Résumé : Tactile defensiveness, characterized by behavioral hyperresponsiveness and negative emotional responses to touch, is a common manifestation of aberrant sensory processing in autism spectrum disorders (ASD) and other developmental disabilities (DD). Variations in tactile defensiveness with the properties of the stimulus and the bodily site of stimulation have been addressed in adults with self-report of perceived tactile pleasantness, but not in children. We presented three materials (pleasant, unpleasant, social) at three bodily sites and measured both examiner-coded defensiveness and self-reported pleasantness from a group of children with ASD and two comparison groups (one with DD, one with typical development (TD)). The main findings were: (1) children with ASD and DD showed significantly more defensiveness reactions and lower pleasantness ratings than the TD group, with higher variability, (2) there was a double dissociation for the effects of material and bodily site of stimulation: while bodily site predicted behavioral defensiveness, material predicted pleasantness rating. Additionally, it was noted that (3) the most pleasant material and the social touch conditions best distinguished ASD and DD from TD on defensiveness, and (4) within the ASD group, social impairment and defensiveness in bodily sites associated with social touch were positively correlated, suggesting a clinically relevant distinction between social and discriminative touch in ASD. En ligne : http://dx.doi.org/10.1007/s10803-013-1961-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288 Olfactory processing in adults with autism spectrum disorders / B. WICKER in Molecular Autism, 7 (2016)
[article]
Titre : Olfactory processing in adults with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : B. WICKER, Auteur ; E. MONFARDINI, Auteur ; J. P. ROYET, Auteur Article en page(s) : 4p. Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder/physiopathology/psychology Differential Threshold/physiology Emotions/physiology Female Humans Hyperesthesia/etiology/physiopathology/psychology Hypesthesia/etiology/physiopathology/psychology Male Odorants Olfactory Pathways/physiopathology Olfactory Perception/physiology Pleasure Recognition (Psychology)/physiology Sensory Thresholds Young Adult Autism spectrum disorders Hyperresponsiveness Identification Intensity Olfaction Pleasantness Suprathreshold detection Index. décimale : PER Périodiques Résumé : BACKGROUND: As evidenced in the DSM-V, autism spectrum disorders (ASD) are often characterized by atypical sensory behavior (hyper- or hypo-reactivity), but very few studies have evaluated olfactory abilities in individuals with ASD. METHODS: Fifteen adults with ASD and 15 typically developing participants underwent olfactory tests focused on superficial (suprathreshold detection task), perceptual (intensity and pleasantness judgment tasks), and semantic (identification task) odor processing. RESULTS: In terms of suprathreshold detection performance, decreased discrimination scores and increased bias scores were observed in the ASD group. Furthermore, the participants with ASD exhibited increased intensity judgment scores and impaired scores for pleasantness judgments of unpleasant odorants. Decreased identification performance was also observed in the participants with ASD compared with the typically developing participants. This decrease was partly attributed to a higher number of near misses (a category close to veridical labels) among the participants with ASD than was observed among the typically developing participants. CONCLUSIONS: The changes in discrimination and bias scores were the result of a high number of false alarms among the participants with ASD, which suggests the adoption of a liberal attitude in their responses. Atypical intensity and pleasantness ratings were associated with hyperresponsiveness and flattened emotional reactions, respectively, which are typical of participants with ASD. The high number of near misses as non-veridical labels suggested that categorical processing is functional in individuals with ASD and could be explained by attention-deficit/hyperactivity disorder. These findings are discussed in terms of dysfunction of the olfactory system. En ligne : http://dx.doi.org/10.1186/s13229-016-0070-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329
in Molecular Autism > 7 (2016) . - 4p.[article] Olfactory processing in adults with autism spectrum disorders [Texte imprimé et/ou numérique] / B. WICKER, Auteur ; E. MONFARDINI, Auteur ; J. P. ROYET, Auteur . - 4p.
Langues : Anglais (eng)
in Molecular Autism > 7 (2016) . - 4p.
Mots-clés : Adult Autism Spectrum Disorder/physiopathology/psychology Differential Threshold/physiology Emotions/physiology Female Humans Hyperesthesia/etiology/physiopathology/psychology Hypesthesia/etiology/physiopathology/psychology Male Odorants Olfactory Pathways/physiopathology Olfactory Perception/physiology Pleasure Recognition (Psychology)/physiology Sensory Thresholds Young Adult Autism spectrum disorders Hyperresponsiveness Identification Intensity Olfaction Pleasantness Suprathreshold detection Index. décimale : PER Périodiques Résumé : BACKGROUND: As evidenced in the DSM-V, autism spectrum disorders (ASD) are often characterized by atypical sensory behavior (hyper- or hypo-reactivity), but very few studies have evaluated olfactory abilities in individuals with ASD. METHODS: Fifteen adults with ASD and 15 typically developing participants underwent olfactory tests focused on superficial (suprathreshold detection task), perceptual (intensity and pleasantness judgment tasks), and semantic (identification task) odor processing. RESULTS: In terms of suprathreshold detection performance, decreased discrimination scores and increased bias scores were observed in the ASD group. Furthermore, the participants with ASD exhibited increased intensity judgment scores and impaired scores for pleasantness judgments of unpleasant odorants. Decreased identification performance was also observed in the participants with ASD compared with the typically developing participants. This decrease was partly attributed to a higher number of near misses (a category close to veridical labels) among the participants with ASD than was observed among the typically developing participants. CONCLUSIONS: The changes in discrimination and bias scores were the result of a high number of false alarms among the participants with ASD, which suggests the adoption of a liberal attitude in their responses. Atypical intensity and pleasantness ratings were associated with hyperresponsiveness and flattened emotional reactions, respectively, which are typical of participants with ASD. The high number of near misses as non-veridical labels suggested that categorical processing is functional in individuals with ASD and could be explained by attention-deficit/hyperactivity disorder. These findings are discussed in terms of dysfunction of the olfactory system. En ligne : http://dx.doi.org/10.1186/s13229-016-0070-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329