What is the cause of dyslexia? A multifactorial additive risk factor model

Competing theories of dyslexia posit that reading difficulties arise from impaired visual, auditory, phonological, or statistical learning mechanisms. Importantly, many theories posit that dyslexia reflects a cascade of impairments emanating from a single “core deficit”. Here we report two studies evaluating core deficit and multifactorial models. In Study 1, we use publicly available data from the Healthy Brain Network to …

Postdoc Position – Leveraging big data to understand the neurobiological underpinnings of reading and math abilities

The Yeatman (Stanford University) and Rokem (University of Washington) labs have 2 years of funding for a jointly mentored postdoc who is interested in capitalizing on new innovations in data science and diffusion MRI methods to understand the neurobiological underpinnings of reading and math abilities. With the emergence of public datasets containing tens of thousands of subjects (e.g., ABCD, Healthy …

You can’t recognize two words simultaneously – Trends in Cognitive Science

In their compelling opinion piece, Snell and Grainger breathe new life into the debate about parallel versus serial processing of text during reading. They marshal several pieces of evidence against the established view that words are recognized one at a time. We agree that this debate cannot be resolved without treading beyond the methodological scope of tracking eye movements. However, …

Intensive Summer Intervention Drives Linear Growth of Reading Skill in Struggling Readers – Donnelly, 2019

Donnelly PM, Huber E, Yeatman JD. Intensive Summer Intervention Drives Linear Growth of Reading Skill in Struggling Readers. Frontiers in Psychology (2019) A major achievement of reading research has been the development of effective intervention programs for struggling readers. Most intervention studies employ a pre-post design, to examine efficacy, but this precludes the study of growth curves over the course …

A bottleneck in the reading circuitry. White et al (2019), PNAS

In most environments, the visual system is confronted with many relevant objects simultaneously. That is especially true during reading. However, behavioral data demonstrate that a serial bottleneck prevents recognition of more than one word at a time. We used fMRI to investigate how parallel spatial channels of visual processing converge into a serial bottleneck for word recognition. Participants viewed pairs …

Participate in our new web-based experiment on visual crowding

Our previous work revealed that some people struggle with reading due to elevated visual crowding. Optimizing text for an individual’s visual system: The contribution of crowding to reading difficulties. Joo S.J., White A. L., Strodtman D., & Yeatman J.D. (2018). Cortex. 103:291-301. In collaboration with LabintheWild, we have developed a web-based version of this experiment and we are trying to get …

Word selectivity in high-level visual cortex and reading skill – Kubota (2018), Dev Cogn Neurosci

Kubota E.C., Joo S.J., Huber E., Yeatman J.D. (2018). Word selectivity in high-level visual cortex and reading skill. Dev Cogn Neurosci. Word-selective neural responses in human ventral occipito-temporal cortex (VOTC) emerge as children learn to read, creating a visual word form area (VWFA) in the literate brain. It has been suggested that the VWFA arises through competition between pre-existing selectivity for other …

Modeling white matter and cognitive development – Huber, 2019, Dev Cogn Neurosci

Huber, E., Henriques, N.R., Owen, J.P., Rokem, A., Yeatman J.D. (2019). Applying biophysical models to understand the role of white matter in cognitive development. Dev Cogn Neurosci. Diffusion MRI (dMRI) holds great promise for illuminating the biological changes that underpin cognitive development. The diffusion of water molecules probes the cellular structure of brain tissue, and biophysical modeling of the diffusion …

Postdoc position – Neurobiology of reading and dyslexia

Postdoc Position in the Yeatman Lab – Neurobiology of Reading and Dyslexia The Yeatman Lab has an opening for a postdoc with exceptional computational skills and an interest in the neurobiological underpinnings of learning to read. The lab combines diffusion MRI, functional MRI, MEG and behavioral measurements to model how changes in brain structure relate to changes in cortical computation …