- Child and Animal Learning Development
- Face Recognition and Perception
- Early Childhood Education and Development
- Infant Development and Preterm Care
- Visual Attention and Saliency Detection
- Gaze Tracking and Assistive Technology
- Child Nutrition and Water Access
- Memory and Neural Mechanisms
- Face recognition and analysis
- Autism Spectrum Disorder Research
- Spatial Cognition and Navigation
- Sensory Analysis and Statistical Methods
- Categorization, perception, and language
- Olfactory and Sensory Function Studies
- Genetics and Neurodevelopmental Disorders
- Multisensory perception and integration
- Color perception and design
- Child Nutrition and Feeding Issues
- Mental Health Research Topics
- Psychometric Methodologies and Testing
- Language Development and Disorders
- Child Development and Digital Technology
- Healthcare Technology and Patient Monitoring
- Folate and B Vitamins Research
- Advanced Causal Inference Techniques
University of California, Davis
2019-2025
University of Minnesota
2014
Much of our basic understanding cognitive and social processes in infancy relies on measures looking time, specifically infants’ visual preference for a novel or familiar stimulus. However, despite being the foundation many behavioral tasks infant research, determinants preferences are poorly understood, differences expression can be difficult to interpret. In this large-scale study, we test predictions from Hunter Ames model infants' preferences. We investigate effects three factors...
Abstract As in many areas of science, infant research suffers from low power. The problem is further compounded because the difficulty recruiting and testing large numbers participants. Researchers have been searching for a solution and, as illustrated by this special section, focused on getting most out data. We illustrate one showing how we can increase power visual preference tasks increasing amount data obtained each infant. discuss issues present work examining how, under some...
Research with Western samples has uncovered the rapid development of infants' visual attention. This study evaluated spatial attention in 6- to 9-month-old infants living rural Malawi (N = 511; nBoys$$ {n}_{\mathrm{Boys}} $$ 255, nYao$$ {n}_{\mathrm{Yao}} 427) or suburban California, United States 57, 29, nWhite$$ {n}_{\mathrm{White}} 37) 2018-2019. Using Infant Orienting With Attention (IOWA) task, results showed that were faster and more accurate fixate a target when cue validly predicted...
Eggs are a rich source of nutrients important for brain development, including choline, riboflavin, vitamins B-6 and B-12, folate, zinc, protein, DHA.
Abstract This preregistered study examined how face masks influenced memory in a North American sample of 6‐ to 9‐month‐old infants ( N = 58) born during the COVID‐19 pandemic. Infants' was tested using standard visual paired comparison (VPC) task. We crossed whether or not faces were masked familiarization and test, yielding four trial types (masked‐familiarization/masked‐test, unmasked‐familiarization/masked‐test, masked‐familiarization/unmasked‐test,...
Domain-general theories of autism rest on evidence that the disorder impacts not only social communication skills but also nonsocial functions such as memory. Yet recognition memory deficits have been inconsistently documented, especially for stimuli other than faces and sentences. Here we tested school-age children with high-functioning (ASD) IQ, age-matched comparison a visual long-term task involving more 100 photographs objects, faces, cats, houses, abstract stimuli. Children viewed each...
Research using eye tracking methods has revealed that when viewing faces, between 6 to 10 months of age, infants begin shift visual attention from the region mouth region. Moreover, this varies with stimulus characteristics and infants’ experience faces languages. The current study examined movements a racially diverse sample 98 7.5 10.5 age as they viewed movies White Asian American women reciting nursery rhyme (the auditory component was replaced music eliminate influence speech on looking...
The primary objective of this work is to extend classical test theory (CTT), in particular, forthe case repeated measurement studies. guiding idea that motivates anytheory ought be expanded when it not compatible with commonly observed phenomena-namely, homogeneous variance components appear the exception and rule inpsychological applications. Additionally, advancements methodology should also consideredin light expansion, appropriate. We argue both goals can accomplishedby merging...
Measures of attention and memory were evaluated in 6- to 9-month-old infants from two diverse contexts. One sample consisted African residing rural Malawi (N = 228, 118 girls, 110 boys). The other racially suburban California 48, 24 Infants tested an eye-tracking version the visual paired comparison procedure shown familiar faces. eye tracking data parsed into individual looks, revealing that both groups showed significant performance. However, how a look was operationally defined impacted...
We investigated limitations in young infants' visual short-term memory (VSTM). used a one-shot change detection task to ask whether 4- and 8.5-month-old infants (N = 59) automatically encode fixated items VSTM. Our included trials that consisted of the following sequence: first brief (500 ms) presentation with sample array two items, next (300 delay period blank screen, finally test (2,000 identical except color one is changed. In Experiment 1, we induced fixate item by rotating it during...
We tested 6- and 8-month-old White non-White infants (
Abstract In their target article, Byers‐Heinlein, Bergman and Savalei describe the neglected challenge of measurement reliability in infancy research. this commentary, we elaborate on problem demonstrate it poses when using looking time measures to assess individual differences infancy. We endorse solutions Byers‐Heinlein et al. propose increase reliability. particular, encourage field develop more reliable infant time.
We tested 6- and 8-month-old White Non-White infants (N = 53 total, 28 girls) from Northern California, USA, in a visual search task to determine whether unique item an otherwise homogeneous display (a singleton) attracts attention because it is singleton “pops out” categorical manner, or instead varies graded manner on the basis of quantitative differences physical salience. Infants viewed arrays 4 6 items; one was other items were identical distractors (e.g., single cookie 3 toy cars). At...
Abstract Choline is an essential micronutrient that may influence growth and development; however, few studies have examined postnatal choline status children's development in low‐ middle‐income countries. The aim of this observational analysis was to examine associations plasma with among Malawian children aged 6–15 months enrolled egg intervention trial. Plasma related metabolites (betaine, dimethylglycine trimethylamine N‐oxide) were measured at baseline 6‐month follow‐up, along...
Visual short-term memory (VSTM), a subcomponent of working memory, is system that briefly stores and maintains visual information across disruptions may occur with eye movements blinks (Luck, 2007). Research using the simultaneous stream change detection task has examined infants’ VSTM arrays as many 6 items (Ross-Sheehy et al., 2003). More precise one-shot change-localization tasks have primarily tested for two (Oakes 2013). Here, we assessed in group 54 5- to 12-month-old infants an...
Much of our basic understanding cognitive and social processes in infancy relies on measures looking time, specifically infants’ visual preference for a novel or familiar stimulus. However, despite being the foundation many behavioral tasks infant research, determinants preferences are poorly understood, differences expression can be difficult to interpret. In this large-scale study, we test predictions from Hunter Ames model infants' preferences. We investigate effects three factors...