Attentional abnormalities are one of the earliest signs of Autism Spectrum Disorders (ASD). Despite flourishing attention studies in autism, relatively little is known about attentional performance among young children with high-functioning autism (HFA). The present study compared 23 preschool children with HFA and 28 typically-developing children on attention network efficiencies, selective attention to social or non-social information and attention switching, with age, cognitive and language abilities matched or controlled. Compared with typically-developing children, young children with HFA showed comparative attention network efficiencies, slower orienting to face and better attention switching. Alternative explanations for their strength in attention switching are given based on superior focused attention to visual details and hyper-systemizing skills. Implications on future research and practice are discussed. / published_or_final_version / Educational Psychology / Master / Master of Social Sciences

Pragmatic language impairments have been found in children with high-functioning Autism (HFA). Limited studies have investigated the contributing factors. This study compared 23 children with HFA with 28 typically-developing children on pragmatic language measures, with their age, cognitive ability and language ability matched or controlled. Deficit of children with HFA was found in making inferences in comprehension but not in narrative ability, and abilities to make inferences in narrative and about psychological state. Theory of mind was an impairment for children with HFA and correlated with inferences about psychological state. In the measure of executive functioning at visual-perceptual level, better performance was found in children with HFA. This cognitive factor did not correlate with any pragmatic language measure. / published_or_final_version / Educational Psychology / Master / Master of Social Sciences

Background: Autism Spectrum Disorder (ASD) is a neuro-developmental disorder characterized by a triad of impairments in social interaction, communication, and restricted and repetitive behaviors. For children with autism especially those with high functioning (HFA), it is common to discover from clinical observation and from care-givers’ report that there are uneven performance in their cognitive profile and also executive difficulties. In recent years, there were enormous amount of researches attempting to delineate the cognitive deficits and the executive impairments in autism. Executive Functions (EF) was a widely studied construct in autism. The vast pool of researches establishes various focuses of investigation, including: (1) the biological level; (2) the cognitive level; (3) the task performance level; and (4) the everyday functioning level. Each of them has its own significance, and contributes distinctly in delineating the executive impairments in ASD. Taking into account the complexity of the EF construct and the far-reaching impacts it imposing on our everyday functioning, a comprehensive approach encompassing different levels of investigation in one research design is suggested to investigate the performance and specific areas of impairment of children with HFA in respective levels; and to explore the possible relationships between the levels of investigations. Methods: Forty aged 12-15 children participated in the research, twenty with HFA and twenty typically developing controls (TD), matched by gender, age and IQ. In the first part of the study, the participants were administered four traditional EF tasks including: inhibition, working memory, flexibility and planning to examine EF in the cognitive level. In the second part, they completed a novel multitasking test, the Battersea Multitask Paradigm (BMP) to examine executive difficulties in the task performance level. Parent ratings of the Behavior Rating Inventory of Executive Function (BRIEF) were collected for further investigation of their executive difficulties in the daily functioning level. Results: The 3-levels of investigation demonstrated converged results in examining the executive ability of ASD. From the integrated analyses, more evidence was gained to speculate that the planning inefficiency of children with HFA was due to their inability to cognitively construct the plan rather than their ability to execute or implement the plan. In real-life situations, they have particular difficulties in time management, to prioritize multiple and interleaved tasks, and to coordinate intended actions for future goal attainment. Moreover, their cognitive inflexibility had a pattern of “get stuck” or perseverates on the same task till completion before moving onto the next task. Their inflexibility to switch seemed to be explained by the preference to follow a more structured kind of sequence or action, i.e. to persist and finish one task before moving to another one. They were actually excellent “rule follower”, might not be as rigid of not willing to change. Significant positive relationships were only observed between the EF measures and Multitask variables. / published_or_final_version / Educational Psychology / Doctoral / Doctor of Psychology

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by impairments in social interaction and the presence of stereotypic behaviors or restricted interests. To explore possible consequences of an excitatory/inhibitory (E/I) imbalance on the visual system in ASD, we investigated spatial suppression in 16 children with ASD and 16 neurotypical comparison children from 6 - 12 years of age using a visual motion processing task during high-density electroencephalography (EEG) recording in order to derive the N1 event related potential (ERP). Consistent with prior behavioral research, neurotypical participants displayed spatial suppression in conditions of large, high-contrast sinusoidal gratings as indexed by delayed N1 response latency. As predicted, children with ASD displayed weakened surround suppression, i.e. shorter N1 response latency to large, high-contrast sinusoidal gratings. However, this study also unexpectedly revealed that children with ASD showed longer N1 latencies in response to small, high-contrast sinusoidal gratings as compared to neurotypical control children. Although there were no statistically significant differences between children with ASD and NT children for N1 peak amplitude, there was a strong negative correlation between N1 amplitude represented in absolute values for large, high-contrast sinusoidal gratings and hyper-responsiveness item mean scores on the Sensory Experiences Questionnaire for children with ASD, but not for NT children. As predicted, no significant differences were found within or between groups in the low-contrast experiment. Our results are indicative of weakened spatial suppression and deficits in contrast gain in children with ASD, suggestive of an underlying E/I imbalance in ASD.

Children with Autism Spectrum Disorders (ASD) have social-communication deficits and are often targets of bullying or ostracism. However, in the past, little has been done to examine these children’s response to negative social interactions. This study investigated how children with Autism Spectrum Disorder detect and respond to ostracism. Thirty 4-6 years old children with Autism Spectrum Disorder were either included or excluded via an online ball-tossing game. Participant’s detection, feelings, imitative behavior, joint attention, social initiations and reciprocal play were then measured. Relative to those in the inclusion condition, children in the exclusion condition reported higher levels of exclusion, more negative feelings, and showed more increase in motor imitation. Implications of these findings on early interventions were discussed. / published_or_final_version / Educational Psychology / Master / Master of Social Sciences

Reading comprehension of students with high-functioning autism spectrum disorder (HFASD) typically falls below their decoding skills. The present study explored the effectiveness of visual-cued facilitation, in forms of activation of prior knowledge and inducing comprehension monitoring behaviours, and inference bridging facilitation on reading comprehension. Twenty-eight primary students with HFASD and their typically-developing peers completed four comprehension exercises with a practical-writing text and three narrative passages with conditions: answering pre-reading questions with illustrations, within-text picture selection tasks, and control. Results indicated that challenges of students with HFASD in Chinese reading comprehension were similar to previous findings. Their performances were no longer statistically differentiable from their peers with visual-cued facilitations. Implication for practice and future direction were discussed. / published_or_final_version / Educational Psychology / Master / Master of Social Sciences

The current study investigates basic, relational concept development, as measured by the Boehm Test of Basic Concepts 3rd Edition – Preschool Version (BTBC3-P), in 51 preschool aged children (Mage = 49.26 months; SD = 8.53 months) with and without Autism Spectrum Disorder (ASD) attending the same Comprehensive Application of Behavior Analysis to Schooling (CABAS©) preschool. Relational concepts represent spatial, dimensional, temporal, quantitative, and class relationships between objects or people (i.e., above and behind). They predict academic achievement in grades two and three and are essential for following directions, making comparisons, sequencing, and classifying—the foundational skills for more complex problem solving (Boehm, 2013; Steinbauer & Heller, 1978). Relational concepts are difficult to learn, represent less tangible and stable relationships, and are often acquired incidentally (Boehm, 2001). Research in Applied Behavior Analysis (ABA) has found that incidental learning generally does not occur until a child masters the naming capability (Greer & Longano, 2010). Naming is a phenomenon that involves a circular understanding whereby a child can see a nonverbal term (i.e., a picture or a word), name that term, hear themselves naming the term, and then select the appropriate representation of that term without direct instruction (Horne & Lowe 1996). Naming is the mechanism through which success in traditional classroom settings is possible, such that once a child has attained the naming capability, that child can learn through observation or by asking questions if he/she sees or hears something novel (i.e., “What is pesto?” Greer & Longano, 2010; Greer & Speckman, 2009). Considering the widespread use of ABA to help children with ASD develop language, this study investigated relational concept acquisition using an ABA (i.e., Verbal Behavior Development Theory [VBDT]) framework. Overall, preschool children with ASD knew significantly fewer total concepts, quantitative concepts, and spatial concepts than their typically developing (TD) counterparts. In addition, the more VBD cusps and capabilities a child attained, the more concepts he/she correctly identified (R2 VBD= .054 with diagnosis held constant). Further, regardless of diagnosis and student progression of VBD, naming was a significant predictor of total concepts known (R2 naming = .114), as well as of concepts known not covered in the C-PIRK© curriculum (R2 naming = .099) used at the preschool. The latter finding supports previous studies that identify naming as a prerequisite to incidental learning. A secondary aim of this dissertation investigated the actions of the examiner required to keep children motivated and on task by creating an Assessor’s Tactic Checklist that lists a number of behavioral techniques to build motivation and increase assessment validity. Overall, diagnosis and naming were related to the number of assessor’s tactics used, with those children with ASD and children without naming requiring significantly more types of tactics than those without (approximately two more types for ASD and two and a half more types for those without naming). Implications for future studies include exploring the rate of concept learning pre and post naming acquisition as well as working to uncover the mechanisms through which naming affects concept acquisition. There is also an identified need for continued exploration into the usefulness of an Assessor’s Tactic Checklist. Strengths and weaknesses of the study are also addressed.

Children with Autism Spectrum Disorder (ASD) commonly present with reading comprehension impairments that impede their academic achievement and independent living. Research suggests that intervening on listening comprehension deficits of preschool children with ASD may contribute to improved reading comprehension proficiency in the school aged years. Dialogic reading is an empirically supported shared reading method known to increase the oral language and listening comprehension of young children with and without language impairments prior to formalized schooling. This study utilized a single subject repeated acquisition design to evaluate the effect of a parent-delivered dialogic reading intervention on the independent and accurate responding of preschool children with ASD. Overall, results showed that the dialogic reading intervention was highly effective for increasing the independent and accurate responding for two of the three participants; however minimally effective for the third. Although the parent participants demonstrated varying levels of procedural fidelity to the dialogic reading procedures, they perceived the intervention to be both feasible and effective when implemented with their preschool children with ASD. Limitations and implications for future research are discussed. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2019. / FAU Electronic Theses and Dissertations Collection

The present study aimed to gain a better understanding of the emotion processing abilities of children between the ages of 4 and 8 with ASD by examining their ability to correctly recognize dynamic displays of emotion. Additionally, we examined whether children with ASD showed emotion specific differences in their ability to accurately identify anger, happiness, sadness, and fear. Participants viewed a continuous display of neutral faces morphing into expressions of emotion. We aimed to measure observed power and asymmetry using EEG data in order to understand the neural activity that underlies the social aspects of ASD. Participants with ASD showed slower processing speed and decreased emotion sensitivity. On tasks that involved the recognition of expressions on the participants’ mothers’ faces, differences were less apparent. These results suggest that children with ASD are capable of recognizing facial displays of emotion after repeated exposure, this should be explored further in future research. / Includes bibliography. / Thesis (M.A.)--Florida Atlantic University, 2020. / FAU Electronic Theses and Dissertations Collection

Many efforts in teaching children with autism are focused on increasing the value of praise as a reward for work. Increasing the value of praise can help children with autism to work in a natural setting, without requiring constant rewards of food or toys for work. In this study, I analyzed a pairing method—a technique of providing verbal praise while simultaneously providing a food reward—to assess whether it would result in an increased value for praise for participants in the study. First, a baseline phase was conducted in which praise statements were provided as a reward for a certain task to see how quickly participants would engage in the task. In the next phase, a pairing condition was implemented in which participants were prompted to engage in the same task; food was provided along with praise as a reward for working on the given task. Finally, during the test phase, praise was again provided as the sole reward for the task, and I measured how quickly participants worked on the task to evaluate whether the value of praise had been increased. During the test phase two participants continued to engage in the task relatively quickly, suggesting that the value of praise had been increased for these two participants.