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Developmental Psychology

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Full-Text Articles in Cognition and Perception

Making Deception Fun: Teaching Autistic Individuals How To Playfriendly Tricks, Adel Naj, Megan St. Clair, Kacie Massoudie, Jonathan Tarbox, Lauri Simchoni, Marianne Jackson, Angela Persicke Apr 2024

Making Deception Fun: Teaching Autistic Individuals How To Playfriendly Tricks, Adel Naj, Megan St. Clair, Kacie Massoudie, Jonathan Tarbox, Lauri Simchoni, Marianne Jackson, Angela Persicke

Psychology Division Scholarship

Perspective taking is a critical repertoire for navigating social relationships and consists of a variety of complex verbalskills, including socially adaptive forms of deception. Detecting and being able to use socially adaptive deception likelyhas many practical uses, including defending oneself against bullying, telling white lies to avoid hurting others’ feelings,keeping secrets and bluffing during games, and playing friendly tricks on others. Previous research has documented thatsome Autistic1 children have challenges identifying deception and playfully deceiving others (Reinecke et al., 1997). Thecurrent study employed a multiple baseline across participants design to evaluate the use of multiple exemplar training, rules,modeling, practice, and …


Proteomic Profiles Of Cytokines And Chemokines In Moderate To Severe Depression: Implications For Comorbidities And Biomarker Discovery, Kathleen T. Watson, Jennifer Keller, Caleb M. Spiro, Isaac B. Satz, Samantha V. Goncalves, Heather Pankow, Idit Kosti, Benoit Lehallier, Adolfo Sequeira, William E. Bunney, Natalie L. Rasgon, Alan F. Schatzberg Jan 2024

Proteomic Profiles Of Cytokines And Chemokines In Moderate To Severe Depression: Implications For Comorbidities And Biomarker Discovery, Kathleen T. Watson, Jennifer Keller, Caleb M. Spiro, Isaac B. Satz, Samantha V. Goncalves, Heather Pankow, Idit Kosti, Benoit Lehallier, Adolfo Sequeira, William E. Bunney, Natalie L. Rasgon, Alan F. Schatzberg

Psychology Division Scholarship

Objective: This study assessed the proteomic profiles of cytokines and chemokines in individuals with moderate to severe depression, with or without comorbid medical disorders, compared to healthy controls. Two proteomic multiplex platforms were employed for this purpose. Metods: An immunofluorescent multiplex platform and an aptamer-based method were used to evaluate 32 protein analytes from 153 individuals with moderate to severe major depressive disorder (MDD) and healthy controls (HCs). The study focused on determining the level of agreement between the two platforms and evaluating the ability of individual analytes and principal components (PCs) to differentiate between the MDD and HC groups. …


Psychology In The Modern World, Kutay Agardici Jul 2022

Psychology In The Modern World, Kutay Agardici

Open Educational Resources

This syllabus is created for the two courses I will be teaching at City College in the psychology dept. Topics include cognition, language, learning, memory, nature vs. nurture, abnormal psychology, social psychology, etc.


Implications For Global And Local Visual Processing In Individuals With Learning Disabilities, Riya Mody May 2022

Implications For Global And Local Visual Processing In Individuals With Learning Disabilities, Riya Mody

Psychology Student Papers and Posters

Visual processing in humans is done by integrating and updating multiple streams of global and local sensory input. When this is not done smoothly, it becomes difficult to see the “big picture”, which has been found to have implications on emotion recognition, social skills, and conversation skills in individuals with Autism Spectrum Disorder (ASD) and other learning disabilities. Previous research in this field has aimed to direct ASD patients toward normative processing of the global features by developing and evaluating a filter which is intended to decrease local interference, or the prioritization of local details. This work attempts to utilize …


How Perception Meets Hermeneutics: An Empirical Investigation Of Tasseography, Elizabeth Avetisian Jan 2022

How Perception Meets Hermeneutics: An Empirical Investigation Of Tasseography, Elizabeth Avetisian

International Journal of Transpersonal Studies Advance Publication Archive

Tasseography is a divination method to provide insight about the seeker’s past, present, or future life by interpreting patterns in the dregs of a liquid. Although it has been practiced with coffee throughout Europe and Middle East, particularly among women, no known studies exist on the seer’s perceptual process of the ambiguous patterns or how the roles of the seeker and seer, symbols, ritual, and cultural epistemology shape the divinatory hermeneutics. This study focused on the Armenian coffee divination ritual, asking what are the processes and conditions that enable experienced cup readers to obtain divinatory insight in tasseography? Two seekers …


Infant And Child Multisensory Attention Skills: Methods, Measures, And Language Outcomes, Elizabeth V. Edgar Sep 2021

Infant And Child Multisensory Attention Skills: Methods, Measures, And Language Outcomes, Elizabeth V. Edgar

FIU Electronic Theses and Dissertations

Intersensory processing (e.g., matching sights and sounds based on audiovisual synchrony) is thought to be a foundation for more complex developmental outcomes including language. However, the body of research on intersensory processing is characterized by different measures, paradigms, and research questions, making comparisons across studies difficult. Therefore, Manuscript 1 provides a systematic review and synthesis of research on intersensory processing, integrating findings across multiple methods, along with recommendations for future research. This includes a call for a shift in the focus of intersensory processing research from that of assessing average performance of groups of infants, to one assessing individual differences …


The Developmental Plasticity Of Fruit Fly Vision, John Paul Currea Jun 2021

The Developmental Plasticity Of Fruit Fly Vision, John Paul Currea

FIU Electronic Theses and Dissertations

In this dissertation we explore the morphological and neural plasticity underlying vision at different scales—within and between species of Drosophila—to elucidate the role of eye development in the evolution of vision. In chapter 2, we offer a tool to accelerate large-scale research into compound eye morphology, and validate it on the eyes of several insect orders and image media. Then, in chapter 3 we demonstrate the developmental plasticity of eye morphology and neural summation in fruit flies, finding an interesting interplay between the two systems. In chapter 4, we elucidate the role of visual plasticity and neural summation in the …


Everyday Memory In People With Down Syndrome, Yingying Yang, Zachary M. Himmelberger, Trent Robinson, Megan Davis, Frances Conners, Edward Merrill Apr 2021

Everyday Memory In People With Down Syndrome, Yingying Yang, Zachary M. Himmelberger, Trent Robinson, Megan Davis, Frances Conners, Edward Merrill

Department of Psychology Faculty Scholarship and Creative Works

Although memory functions in people with Down Syndrome (DS) have been studied extensively, how well people with DS remember things about everyday life is not well understood. In the current study, 31 adolescents/young adults with DS and 26 with intellectual disabilities (ID) of mixed etiology (not DS) participated. They completed an everyday memory questionnaire about personal facts and recent events (e.g., school name, breakfast). They also completed a standard laboratory task of verbal long-term memory (LTM) where they recalled a list of unrelated words over trials. Results did not indicate impaired everyday memory, but impaired verbal LTM, in people with …


How Multidimensional Is Emotional Intelligence? Bifactor Modeling Of Global And Broad Emotional Abilities Of The Geneva Emotional Competence Test, Daniel Simonet, Katherine E. Miller, Kevin Askew, Kenneth Sumner, Marcello Mortillaro, Katja Schlegel Mar 2021

How Multidimensional Is Emotional Intelligence? Bifactor Modeling Of Global And Broad Emotional Abilities Of The Geneva Emotional Competence Test, Daniel Simonet, Katherine E. Miller, Kevin Askew, Kenneth Sumner, Marcello Mortillaro, Katja Schlegel

Department of Psychology Faculty Scholarship and Creative Works

Drawing upon multidimensional theories of intelligence, the current paper evaluates if the Geneva Emotional Competence Test (GECo) fits within a higher-order intelligence space and if emotional intelligence (EI) branches predict distinct criteria related to adjustment and motivation. Using a combination of classical and S-1 bifactor models, we find that (a) a first-order oblique and bifactor model provide excellent and comparably fitting representation of an EI structure with self-regulatory skills operating independent of general ability, (b) residualized EI abilities uniquely predict criteria over general cognitive ability as referenced by fluid intelligence, and (c) emotion recognition and regulation incrementally predict grade point …


Aberrant Maturation Of The Uncinate Fasciculus Follows Exposure To Unpredictable Patterns Of Maternal Signals, Steven J. Granger, Laura M. Glynn, Curt A. Sandman, Steven L. Small, Andre Obenaus, David B. Keator, Tallie Z. Baram, Hal S. Stern, Michael A. Yassa, Elyssia Poggi Davis Feb 2021

Aberrant Maturation Of The Uncinate Fasciculus Follows Exposure To Unpredictable Patterns Of Maternal Signals, Steven J. Granger, Laura M. Glynn, Curt A. Sandman, Steven L. Small, Andre Obenaus, David B. Keator, Tallie Z. Baram, Hal S. Stern, Michael A. Yassa, Elyssia Poggi Davis

Psychology Faculty Articles and Research

Across species, unpredictable patterns of maternal behavior are emerging as novel predictors of aberrant cognitive and emotional outcomes later in life. In animal models, exposure to unpredictable patterns of maternal behavior alters brain circuit maturation and cognitive and emotional outcomes. However, whether exposure to such signals in humans alters the development of brain pathways is unknown. In mother–child dyads, we tested the hypothesis that exposure to more unpredictable maternal signals in infancy is associated with aberrant maturation of corticolimbic pathways. We focused on the uncinate fasciculus, the primary fiber bundle connecting the amygdala to the orbitofrontal cortex and a key …


An Evaluation Of Wayfinding Abilities In Adolescent And Young Adult Males With Autism Spectrum Disorder, Yingying Yang, Weijia Li, Dan Huang, Wei He, Yanxi Zhang, Edward Merrill Jan 2021

An Evaluation Of Wayfinding Abilities In Adolescent And Young Adult Males With Autism Spectrum Disorder, Yingying Yang, Weijia Li, Dan Huang, Wei He, Yanxi Zhang, Edward Merrill

Department of Psychology Faculty Scholarship and Creative Works

Background

Wayfinding refers to traveling from place to place in the environment. Despite some research headway, it remains unclear whether individuals with Autism Spectrum Disorder (ASD) show strengths, weaknesses, or similarities in wayfinding compared with ability-matched typically developing (TD) controls.

Method

The current study tested 24 individuals with ASD, 24 mental-ability (MA) matched TD (MA-TD) controls, and 24 chronological-age (CA) matched TD (CA-TD) controls. Participants completed a route learning task and a survey learning task, both programmed in virtual environments, and a perspective taking task. Their parents completed questionnaires assessing their children’s everyday wayfinding activities and competence.

Results

Overall, CA-TD …


Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan Aug 2020

Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan

Department of Biology Faculty Scholarship and Creative Works

Humans employ a number of strategies to improve their position in their given social hierarchy. Overclaiming involves presenting oneself as having more knowledge than one actually possesses, and it is typically invoked to increase one’s social standing. If increased expectations to possess knowledge is a perceived social pressure, such expectations should increase bouts of overclaiming. As the medial prefrontal cortex (MPFC) is sensitive to social pressure and disruption of the MPFC leads to decreases in overclaiming, we predicted that transcranial magnetic stimulation (TMS) applied to the MPFC would reduce overclaiming and the effects would be enhanced in the presence of …


Mode Of Delivery And Infant Cognitive Development, Madison Olson, Laura M. Glynn May 2020

Mode Of Delivery And Infant Cognitive Development, Madison Olson, Laura M. Glynn

Student Scholar Symposium Abstracts and Posters

The rate of nonindicated cesarean births is increasing each year within the United States. Although cesarean delivery can function as a life- saving intervention, emerging evidence suggests that it may also be associated with deleterious developmental consequences for the child. Here we test the hypothesis that mode of delivery is associated with cognitive development during infancy. 229 pregnant women were recruited and their infants’ cognitive development was assessed at 6, 12 and 24 months with the Bayley Scales of Infant Development. Medical charts were reviewed by obstetric nurses to determine prenatal medical risk and birth outcomes, including mode of delivery. …


The Project Talent Twin And Sibling Study: Zygosity And New Data Collection, Carol A. Prescott, Ellen E. Walters, Thalida Em Arpawong, Catalina Zavala, Tara L. Gruenewald, Margaret Gatz Feb 2020

The Project Talent Twin And Sibling Study: Zygosity And New Data Collection, Carol A. Prescott, Ellen E. Walters, Thalida Em Arpawong, Catalina Zavala, Tara L. Gruenewald, Margaret Gatz

Psychology Faculty Articles and Research

The Project Talent Twin and Sibling (PTTS) study includes 4481 multiples and their 522 nontwin siblings from 2233 families. The sample was drawn from Project Talent, a U.S. national longitudinal study of 377,000 individuals born 1942–1946, first assessed in 1960 and representative of U.S. students in secondary school (Grades 9–12). In addition to the twins and triplets, the 1960 dataset includes 84,000 siblings from 40,000 other families. This design is both genetically informative and unique in facilitating separation of the ‘common’ environment into three sources of variation: shared by all siblings within a family, specific to twin-pairs, and associated with …


The Influence Of Maternally Regulated Prenatal Sensory Experience On Postnatal Motor Coordination In Neonatal Bobwhite Quail, Starlie C. Belnap Oct 2019

The Influence Of Maternally Regulated Prenatal Sensory Experience On Postnatal Motor Coordination In Neonatal Bobwhite Quail, Starlie C. Belnap

FIU Electronic Theses and Dissertations

Comparative animal studies aid in understanding how prenatal sensory experiences regulated by maternal activity facilitate or interfere with growth and phenotype development. However, there is a paucity of information on how prenatal sensory experience influence postnatal motor performance. In this series of studies, we used an avian model, the bobwhite quail, to evaluate the effects of prenatal temperature (study 1), prenatal movement (study 2), prenatal light duration (study 3), and prenatal light presentation pattern (study 4) on hatchability, growth and postnatal motor performance in 24hr quail neonates. In study 1, quail embryos were exposed to naturally occurring cool (36.9°C) or …


The Role Of Dreams, Intuition, And Social Influences On Conscious Decision-Making Processes, Robert Bouffard May 2019

The Role Of Dreams, Intuition, And Social Influences On Conscious Decision-Making Processes, Robert Bouffard

Senior Honors Projects

The average person makes approximately 35,000 conscious decisions per day, which, accounting for the daily amount of sleep a person gets, is equivalent to a decision madeevery two seconds. Upon realizing the frequency, I sought to find a distinctive connectionbetween the conscious and unconscious when it pertains to how people make decisions. I hypothesized that people make decisions regarding their personal relationships with the help of intuition, which I considered to be the ultimate link between our dreams and our conscious thought. I also believed the concept of intuition was entirely dependent on our processing and decoding of dreams. In …


The Influence Of Aging, Gaze Direction, And Context On Emotion Discrimination Performance, Alyssa Renee Minton Apr 2019

The Influence Of Aging, Gaze Direction, And Context On Emotion Discrimination Performance, Alyssa Renee Minton

Masters Theses & Specialist Projects

This study examined how younger and older adults differ in their ability to discriminate between pairs of emotions of varying degrees of similarity when presented with an averted or direct gaze in either a neutral, congruent, or incongruent emotional context. For Task 1, participants were presented with three blocks of emotion pairs (i.e., anger/disgust, sadness/disgust, and fear/disgust) and were asked to indicate which emotion was being expressed. The actors’ gaze direction was manipulated such that emotional facial expressions were depicted with a direct gaze or an averted gaze. For Task 2, the same stimuli were placed into emotional contexts (e.g., …


Aging And Visual Spatial Integration, Alexia J. Higginbotham Jan 2019

Aging And Visual Spatial Integration, Alexia J. Higginbotham

Masters Theses & Specialist Projects

The current study evaluated the ability of 20 younger and 20 older adults to discriminate shapes depicted by Glass patterns. On any given trial, observers identified a particular pattern as either possessing a radial or concentric organization. Detecting a shape defined by a Glass pattern requires the successful detection of the orientations of its constituent local dipoles. In addition, long-range processes are needed to integrate the spatially separated dipoles into perceivable contours that have a particular (e.g., radial or concentric) organization. In the current experiment, the shapes were defined by either 40 or 200 oriented dipoles spread over an area …


Brief Report: Attentional Cueing To Images Of Social Interactions Is Automatic For Neurotypical Individuals But Not Those With Asc, Marcus Neil Morrisey, Catherine L. Reed, Daniel N. Mcintosh, M. D. Rutherford Sep 2018

Brief Report: Attentional Cueing To Images Of Social Interactions Is Automatic For Neurotypical Individuals But Not Those With Asc, Marcus Neil Morrisey, Catherine L. Reed, Daniel N. Mcintosh, M. D. Rutherford

Psychology: Faculty Scholarship

Human actions induce attentional orienting toward the target of the action. We examined the influence of action cueing in social (man throwing toward a human) and non-social (man throwing toward a tree) contexts in observers with and without autism spectrum condition (ASC). Results suggested that a social interaction enhanced the cueing effect for neurotypical participants. Participants with ASC did not benefit from non-predictive cues and were slower in social contexts, although they benefitted from reliably predictive cues. Social orienting appears to be automatic in the context of an implied social interaction for neurotypical observers, but not those with ASC. Neurotypical …


Social Work Trauma Interventions: Dialectical Behavioral Therapy, Kassie Baumann May 2018

Social Work Trauma Interventions: Dialectical Behavioral Therapy, Kassie Baumann

Senior Honors Theses

According to Lynne Weilart (2013), in her article on the reasons why people seek out therapy, trauma is the number one reason people attend counseling. Many different trauma-informed approaches are designed specifically to address the consequences of trauma and to facilitate healing. Some of these approaches are as follows: Cognitive Behavioral Therapy (CBT); Dialectical Behavioral Therapy (DBT);Mentalization Based Therapy (MBT); Trauma Systems Therapy (TST); Trauma Assessment Pathway (TAP); and Attachment, Self-Regulation, and Competency (ARC) (de Arellano, Danielson, Ko, & Sprauge, 2008). The effectiveness of each trauma intervention will be examined. DBT is one of these trauma interventions that is growing …


Unimanual And Bimanual Haptic Shape Discrimination, Catherine Jane Dowell Apr 2018

Unimanual And Bimanual Haptic Shape Discrimination, Catherine Jane Dowell

Masters Theses & Specialist Projects

In the current study 24 younger adults and 24 older adults haptically discriminated natural 3-D shapes (bell peppers, Capsicum annuum) using unimanual (one hand used to explore two objects) and bimanual (both hands used, but each hand explored separate objects) successive exploration. Haptic exploration using just one hand requires somatosensory processing in only one cerebral hemisphere (the hemisphere contralateral to the hand being used), while bimanual haptic exploration requires somatosensory processing in both hemispheres. Previous studies related to curvature/shape perception have found either an advantage for unimanual exploration over bimanual exploration or no difference between the two conditions. In contrast …


How Stable Are Human Aesthetic Preferences Across The Lifespan?, Cameron Pugach, Helmut Leder, Daniel J. Graham May 2017

How Stable Are Human Aesthetic Preferences Across The Lifespan?, Cameron Pugach, Helmut Leder, Daniel J. Graham

Publications and Research

How stable are human aesthetic preferences, and how does stability change over the lifespan?Here we investigate the stability of aesthetic taste in a cross-sectional study. We employed a simple rank-order preference task using paintings and photographs of faces and landscapes. In each of the four stimulus classes, we find that aesthetic stability generally follows an inverted U-shaped function, with the greatest degree of stability appearing in early to middle adulthood. We propose that one possible interpretation of this result is that it indicates a role for cognitive control (i.e., the ability to adapt cognition to current situations) in the construction …


Curiosity: Emergent Behavior Through Interacting Multi-Level Predictions, Douglas S. Blank, Lisa Meeden, James Marshall May 2017

Curiosity: Emergent Behavior Through Interacting Multi-Level Predictions, Douglas S. Blank, Lisa Meeden, James Marshall

Computer Science Faculty Research and Scholarship

Over the past 15 years our research group has been exploring models of developmental robotics and curiosity. Our research is based on the premise that intelligent behavior arises through emergent interactions between opposing forces in an open-ended, task-independent environment. In an initial experiment we constructed a recurrent neural network model where self-motivation was "an emergent property generated by the competing pressures that arise in attempting to balance predictability and novelty". The system first focused on its error, then learned to successfully predict its error, and finally became habituated to what caused the error. This process of focusing, learning, and habituating …


Adolescent Perceptions Of Dating Violence: A Qualitative Study, Sarah Taylor, Carrie A. Calkins, Yan Ruth Xia, Rochelle L. Dalla Jan 2017

Adolescent Perceptions Of Dating Violence: A Qualitative Study, Sarah Taylor, Carrie A. Calkins, Yan Ruth Xia, Rochelle L. Dalla

Department of Child, Youth, and Family Studies: Faculty Publications

Scholars have identified dating violence as a public health issue among adolescents. Yet, minimal research has detailed adolescents’ perceptions of dating violence, specifically gender differences in perceptions. Research suggests that in order for dating violence prevention and intervention to be effective, services need to be delivered in a manner that is understood by adolescents. Therefore, this study used a qualitative phenomenology study to investigate adolescents’ perceptions of dating violence, including gender differences in adolescents’ perceptions. Thirty adolescents between the ages of 14 and 19 from a Midwest public high school participated in focus groups. Focus group participants were asked semistructured …


Game-Based Selective Attention Intervention: Effect Of Blink On Selective Attention For Street Youth In Zambia, Brittany S. Richard Apr 2016

Game-Based Selective Attention Intervention: Effect Of Blink On Selective Attention For Street Youth In Zambia, Brittany S. Richard

Senior Honors Theses

The following study was conducted to evaluate the effect of a game-based intervention in the form of a card game, Blink, on selective attention for a sample of street youth in Zambia, Africa. Based on previous research suggesting that selective attention and executive functioning may be modified by game-based interventions in various populations and contexts, this study sought to employ a card game intervention for selective attention. The study was conducted with a repeated measures design, with a paired sample within-groups t-test adapted from the TEA-Ch Sky Search measure of selective attention, and the card game Blink as a …


Conflict Processing Across Development: The Progression Of Response Inhibition Networks, Mallory Jackman Jan 2016

Conflict Processing Across Development: The Progression Of Response Inhibition Networks, Mallory Jackman

2016 Undergraduate Awards

Cognitive control processes allow individuals to guide their behaviour in the face of distracting or irrelevant stimuli, and typically continue developing into early adulthood. These processes are often tested using response inhibition paradigms such as the size congruency task, which require participants to select between conflicting responses. Previous studies have shown that activity in the dorsolateral prefrontal cortex (DLPFC) and the anterior cingulate cortex (ACC) parallels the protracted development of cognitive control. Recent evidence suggests that children and adolescents may rely on more subcortical regions such as the cerebellum to process conflict. The present study aimed to comprehensively investigate activity …


Parents And Teachers’ Perceptions And Clinical Diagnosis Of Autism Among White And Non-White Groups, Margaret Gopaul Jan 2016

Parents And Teachers’ Perceptions And Clinical Diagnosis Of Autism Among White And Non-White Groups, Margaret Gopaul

School of Psychology Publications

The pervasiveness of autism has significantly increased over the past 2 decades with the 2014 Center for Disease Control and Prevention report indicating 1 in 68 children are diagnosed with Autism Spectrum Disorder (ASD). Early intervention is recommended as the most effective treatment approach. Nevertheless, previous research has indicated that White children are diagnosed with ASD about 1.5 years earlier than are Non-White children. A current gap remains in literature regarding ASD and different racial groups, and evidence has been inconclusive regarding disparities in identifying and diagnosing ASD. To fill this gap, this study investigated the relationship between child race, …


Parents And Teachers’ Perceptions And Clinical Diagnosis Of Autism Among White And Non-White Groups, Margaret Gopaul Jan 2016

Parents And Teachers’ Perceptions And Clinical Diagnosis Of Autism Among White And Non-White Groups, Margaret Gopaul

Walden Faculty and Staff Publications

The pervasiveness of autism has significantly increased over the past 2 decades with the 2014 Center for Disease Control and Prevention report indicating 1 in 68 children are diagnosed with Autism Spectrum Disorder (ASD). Early intervention is recommended as the most effective treatment approach. Nevertheless, previous research has indicated that White children are diagnosed with ASD about 1.5 years earlier than are Non-White children. A current gap remains in literature regarding ASD and different racial groups, and evidence has been inconclusive regarding disparities in identifying and diagnosing ASD. To fill this gap, this study investigated the relationship between child race, …


Acquisition Of The Cardinal Principle Coincides With Improvement In Approximate Number System Acuity In Preschoolers, Anna Shusterman, Emily Slusser, Justin Halberda, Darko Odic Jan 2016

Acquisition Of The Cardinal Principle Coincides With Improvement In Approximate Number System Acuity In Preschoolers, Anna Shusterman, Emily Slusser, Justin Halberda, Darko Odic

Faculty Publications

Human mathematical abilities comprise both learned, symbolic representations of number and unlearned, non-symbolic evolutionarily primitive cognitive systems for representing quantities. However, the mechanisms by which our symbolic (verbal) number system becomes integrated with the non-symbolic (non-verbal) representations of approximate magnitude (supported by the Approximate Number System, or ANS) are not well understood. To explore this connection, forty-six children participated in a 6-month longitudinal study assessing verbal number knowledge and non-verbal numerical acuity. Cross-sectional analyses revealed a strong relationship between verbal number knowledge and ANS acuity. Longitudinal analyses suggested that increases in ANS acuity were most strongly related to the acquisition …


Spatial Estimation: A Non-Bayesian Alternative, Hilary Barth, Ellen Lesser, Jessica Taggart, Emily Slusser Sep 2015

Spatial Estimation: A Non-Bayesian Alternative, Hilary Barth, Ellen Lesser, Jessica Taggart, Emily Slusser

Faculty Publications

A large collection of estimation phenomena (e.g. biases arising when adults or children estimate remembered locations of objects in bounded spaces; Huttenlocher, Newcombe & Sandberg, 1994) are commonly explained in terms of complex Bayesian models. We provide evidence that some of these phenomena may be modeled instead by a simpler non-Bayesian alternative. Undergraduates and 9- to 10-year-olds completed a speeded linear position estimation task. Bias in both groups’ estimates could be explained in terms of a simple psychophysical model of proportion estimation. Moreover, some individual data were not compatible with the requirements of the more complex Bayesian model.