Fabiola R Gómez-Velázquez

Fabiola R Gómez-Velázquez
University of Guadalajara | UDG · Instituto de Neurociencias

PHD
Currently works at the Neuroscience Institute of Guadalajara University as a full-time Professor-Researcher.

About

79
Publications
13,026
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342
Citations
Introduction
She is researching behavioral and electrophysiological bases of dyslexia, orthographic knowledge development, and math disabilities.
Additional affiliations
August 2017 - May 2019
University of Guadalajara
Position
  • Professor (Full)
September 2003 - present
Universidad de Guadalajara
Position
  • Research Associate
September 2003 - May 2019
University of Guadalajara
Position
  • Professor (Full)

Publications

Publications (79)
Article
Fact retrieval deficits have been documented in children with mathematical learning disabilities. We assessed the retrieval of arithmetic facts in neurotypical 9-to-10-year-old children with different mathematical achievement levels using event-related potential methods while performing an arithmetic verification task (addition, subtraction, and mu...
Article
Full-text available
Los rasgos de dislexia tienden a persistir hasta la edad adulta, desafortunadamente muchos jóvenes nunca son diagnosticados y continúan lidiando con sus dificultades en etapas preuniversitarias. En el presente estudio se buscó identificar las dificultades en la vida cotidiana que reportan jóvenes preuniversitarios en un cuestionario de dislexia par...
Article
Full-text available
Despite the recent literature on sex-related anatomic, maturational and functional brain differences, the study of significant individual developments in math learning and achievement has scarcely approached this perspective. We aimed to compare the influence of sex in functional brain connectivity and behavioral measures in a numerical comparison...
Article
Challenges in early oral language acquisition in profoundly deaf individuals have an impact on cognitive neurodevelopment. This has led to the exploration of alternative sound perception methods involving training of vibrotactile discrimination of sounds within the language spectrum. In particular, stimulus duration plays an important role in lingu...
Article
Full-text available
Working Memory (WM) deficits have been suggested as an endophenotypic marker for schizophrenia. This neurocognitive marker proposal has been supported by evidence of WM deficits also observed in unaffected high-risk relatives (HR) of patients with schizophrenia. Furthermore, empirical evidence suggests that working memory (WM) load and the implicit...
Article
Objective Type-1 diabetes (T1D) is a disruptive metabolic disease that has an impact on neurodevelopment through its effects on the structure and function of the brain. One of the cognitive domains affected by T1D is sustained attention. The aim of this study was to analyze this process in children with T1D and compare their results to those of hea...
Article
This study examined Spanish spelling errors among 166 native Spanish-speaking students from Kindergarten to Grade 3 based on a spelling-to-diction task. Fifteen types of spelling errors were analyzed in a latent class analysis. Results suggested three phases of spellers: Phase 1 students had a high chance of committing almost all types of errors. P...
Article
Resumen La esquizofrenia es considerada como un trastorno mental heterogéneo que abarca amplios rangos de expresión perceptiva, cognoscitiva, emocional, funcional, estructural y del comportamiento, que además se vincula a una importante susceptibilidad genética. Es por ello que investigar sobre esta enfermedad implique seleccionar cuidadosamente a...
Article
Full-text available
Recent studies aiming to facilitate mathematical skill development in primary school children have explored the electrophysiological characteristics associated with different levels of arithmetic achievement. The present work introduces an alternative EEG signal characterization using graph metrics and, based on such features, a classification anal...
Article
Full-text available
Introduction: There is an essential relationship between reading development and orthographic knowledge, which varies depending on a language’s orthographic characteristics. In transparent orthographies, such as Spanish, that relationship is closer, where reading speed and orthographic knowledge reflect the automation of the process in which crucia...
Article
The aim of this study was to compare a reconfigurable mobile electroencephalography (EEG) system (M-EMOTIV) based on the Emotiv Epoc ® (which has the ability to record up to 14 electrode sites in the 10/20 International System) and a commercial, clinical-grade EEG system (Neuronic MEDICID-05 ® ), and then validate the rationale and accuracy of reco...
Article
Full-text available
El dominio del lenguaje escrito se basa en la consolidación de representaciones neurales complejas de los patro-nes ortográficos de las palabras. En virtud de explorar las características presentes en procesos neurales relaciona-dos con la especialización ortográfica, se estudiaron con métodos de imagen por resonancia magnética funcional los nivele...
Article
Several executive functions decline with the development of type-1 diabetes (T1D), particularly working memory (WM). In adults, WM ensures efficient cognitive processing by focusing on task-relevant information while suppressing distractors. It has been well documented that WM can be influenced by emotional stimuli, which may facilitate the retenti...
Article
Este artículo no pretende realizar una revisión sistemática ni completa de la literatura, sino que tiene como objetivo ofrecer una visión crítica por parte de los autores, acerca de la organización funcional cerebral durante la lectura en personas bilingües. Primeramente se presenta un análisis crítico de diferentes propuestas teóricas acerca del p...
Conference Paper
The development of neural substrates of spelling abilities is greatly influenced by the characteristics of the language. Orthographic consistency leads to the adoption of different reading strategies across languages. In this regard, it is crucial to understand the developing mechanisms underlying word recognition and reading fluency in a context i...
Article
The aim of the study was to evaluate the neurofunctional effect of gender in Type‐1 Diabetes Mellitus (T1DM) patients during a Visual Spatial Working Memory (VSWM) task. The study included 28 participants with ages ranging from 17‐28 years. Fourteen well‐controlled T1DM patients (7 female) and 14 controls matched by age, sex, and education level we...
Article
Symbolic numerical magnitude processing is crucial to arithmetic development, and it is thought to be supported by the functional activation of several brain-interconnected structures. In this context, EEG beta oscillations have been recently associated with attention and working memory processing that underlie math achievement. Due to that EEG coh...
Article
It has been generally accepted that skipping breakfast adversely affects cognition, mainly disturbing the attentional processes. However, the effects of short-term fasting upon brain functioning are still unclear. We aimed to evaluate the effect of skipping breakfast on cognitive processing by studying the electrical brain activity of young healthy...
Article
The study of orthographic errors in a transparent language such as Spanish is an important topic in relation to writing acquisition because in Spanish it is common to write pseudohomophones as valid words. The main objective of the present study was to explore the possible differences in activation patterns in brain areas while processing pseudohom...
Article
Orthographic competence allows automatic word recognition and reading fluency. To elucidate how the orthographic competence in Spanish-speaking adults might affect the neurofunctional mechanisms of visual word recognition, 32 young adults equally divided in two groups (HSS: High Spelling Skills, and LSS: Low Spelling Skills) were evaluated using fM...
Article
Full-text available
Early auditory deprivation has serious neurodevelopmental and cognitive repercussions largely derived from impoverished and delayed language acquisition. These conditions may be associated with early changes in brain connectivity. Vibrotactile stimulation is a sensory substitution method that allows perception and discrimination of sound and even s...
Article
Children with mathematical difficulties usually have an impaired ability to process symbolic representations. Functional MRI methods have suggested that early frontoparietal connectivity can predict mathematic achievements; however, the study of brain connectivity during numerical processing remains unexplored. With the aim of evaluating this in ch...
Poster
Full-text available
Está bien establecido que los problemas de multiplicación de un solo dígito se almacenan en memoria de largo plazo como una asociación fáctica de operación-resultado, lo que permite resolver problemas de manera automática, sin necesidad de ”operar” con los números. En la presente investigación se revisa la dificultad con la cual sujetos responden a...
Article
Full-text available
Orthographic knowledge is affected by language processing, which is associated with word exposure. This study used event-related potentials (ERP) to explore this association in Spanish-speaking adults with different levels of orthographic competence (High Spelling Skills: HSS; Low Spelling Skills: LSS) while they performed a lexical decision task o...
Article
Full-text available
In this paper we studied the functional neural substrates underlying the performance of homophonic spelling error detecting tasks including frequent and infrequent Spanish words- through functional Magnetic Resonance Imaging (fMRI) procedure in subjects with low orthographic performance. Method: A block design was used to administer 2 visual tasks,...
Article
Processing and storage in visuospatial working memory (VSWM) seem to depend on attention-based mechanisms. In order to explore the effect of attention-attractive stimuli, such as emotional faces on VSWM performance, ERPs were obtained from 20 young adults while reproducing spatial sequences of six facial (happy and neutral) and non-facial control s...
Article
Full-text available
Resumen: Introducción: La velocidad de denominación está estrechamente relacionada con la velocidad de la lectura y constituye un importante predictor del desempeño lector. Por otra parte, el déficit para recordar el orden en el que se presenta una secuencia de sonidos (juicio de orden temporal), se ha asociado con trastornos lectores, en particula...
Article
Full-text available
Introducción: Las dificultades con el conocimiento ortográfico se consideran un problema extendido entre los jóvenes de habla española, pero no es clara la magnitud de tal problema, sus características o la relación que el pobre conocimiento ortográfico tiene con la lectura. Metodología: Se evaluó el conocimiento ortográfico de 827 estudiantes de b...
Article
Full-text available
Mild traumatic brain injury (MTBI) is a common cause of short-term cognitive disturbances in children that rarely are related to objective neurophysiological markers. With the aim of correlating cognitive processing with event-related brain potential variation, visual Continuous Performance Tests (CPT) were administered to 15 children with MTBI and...
Article
Reading speed and efficiency are achieved through the automatic recognition of written words. Difficulties in learning and recognizing the orthography of words can arise despite reiterative exposure to texts. This study aimed to investigate, in native Spanish-speaking late adolescents, how different levels of orthographic knowledge might result in...
Chapter
Full-text available
For centuries, philosophers and neuroscientists have questioned whether the use of language and the ability to solve complex problems are related and, if so, what the nature of the relationship between language and thought is. Most of the attention – and controversy – have been focused on the claim that the structure of language shapes non-linguist...
Chapter
El capítulo revisa los distintos hallazgos provenientes de la exploración imagenológica y electrofisiológica del Sistema Nervioso en individuos que han sido sometidos a exposición prenatal a drogas de abuso.
Article
Full-text available
Children with reading disabilities or dyslexia, commonly suffer disturbances in phonological awareness, slow-naming speed, and delayed automatic word recognition. A close relation between naming speed and reading difficulties has been well documented; hence, the former could be a useful early predictor of dyslexia. Reading disabled children usually...
Article
Full-text available
Sex-based differences in visuospatial working memory (VSWM) processing have been documented previously. However, there is a significant lack of empirical data on the gender-related effects on both cognitive load, and the emotional content of spatially-remembered objects in VSWM. In order to explore this issue, 50 young adults (25 males) voluntarily...
Conference Paper
Early auditory deprivation has serious neurodevelopmental and cognitive repercussions mainly explained by the inability of most deaf individuals to acquire spoken language conventionally. Vibrotactile stimulation has been considered an alternative method that allows perception and discrimination of sound, and even oral language. Two oddball vibrota...
Article
Full-text available
The emotional content of either stimuli or contexts can affect simultaneous cognitive task performance, but relationships between theses processes are still unclear. The present study evaluated the electrophysiological responses of sixteen subjects while passively listening to successive brief (50 ms) binaurallyadministered auditory frequent (1000...
Article
Full-text available
Rapid Automatized Naming (RAN) deficits have been associated with less developed orthographic abilities that may affect lexical decisions. The effects of Spanish-speaking children's RAN performance on lexical decisions were evaluated by analyzing ERP and behavioral measures. Based upon their naming speed in four RAN tasks, 28 normal IQ, right-hande...
Article
Full-text available
Resumen: En este trabajo se estudió longitudinalmente, en 121 niños, el valor predictivo de la velocidad de denominación y las habilidades fonológicas sobre el aprendizaje de la lectura y sus alteraciones. La denominación de letras predijo mejor la ejecu-ción lectora e identificó correctamente a 63% de los niños que posteriormente presentaron dific...
Article
Full-text available
Introduction: Female adults with attention deficit hyperactivity disorder (ADHD) typically have emotional processing disturbances, but our knowledge on the efficacy of regular pharmacological treatments on this issue is insufficient. Objective: To evaluate the effects of methylphenidate (MFD) on behavioral measures and subjacent functional cerebral...
Article
Full-text available
Attention deficit/hyperactivity disorder (ADHD) is a common behavioral disorder found mainly in males, thus current knowledge on its clinical expression in female adults is extremely limited. AIM. To evaluate the behavioral and neural substrates associated with the performance of a short-term memory task in female ADHD adults, with and without meth...
Article
Facial emotional processing can be bypassed when faces are task-irrelevant and attention is diverted, although this effect has not been examined when cognitive task occurs within a facial background. Event-related potential (ERP) measures were obtained to evaluate the influence of different irrelevant facial emotional contexts on a simultaneous "ea...
Article
Introduction. To our knowledge, in spite of the increasing drug-abuse statistics in Mexican pregnant women, there are no published clinical researches approaching this issue in our country. We describe the characteristics of neonatal abstinent infants admitted in the Neonatal Intensive Care Unit (NICU) located at the Hospital Civil of Guadalajara....
Article
It has been reported that limitations in different components of working memory could underlie reading disabilities. In addition, reading-disabled (RD) children seem to perform worse when digit name processing is required. With the purpose to explore further these assumptions one inverse serial digit detection task was evaluated using event-related...
Article
Full-text available
Sixteen ADHD children and a control group were asked to reproduce the varying time duration of successively presented visual stimuli. Time estimation was poorer in ADHD children, who showed more impulsive errors. ERPs exhibited similar grand-mean waveforms for both groups during the estimating period, but they were significantly different during th...
Article
Full-text available
[corrected] The Attention Deficit Disorder with Hyperactivity (ADDH) Barkley model predicts concomitant deficits in working memory and in the development of a sense of time as a consequence of poor behavioral inhibition. Objective: To evaluate electrophysiologically Barkley's theory (1997). We studied the electroencephalogram (EEG) of fifteen right...
Article
Full-text available
Processing and maintenance in working memory involve active attention allocation; consequently, it is possible that a recognition process could interfere with the performance of highly demanding working memory tasks. Event-related brain potentials (ERPs) were recorded while fourteen healthy male adults performed a visual verbal dual working memory...