Efraı́n Santiago-Rodrı́guez

ORCID: 0000-0003-3590-6825
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About
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Research Areas
  • Neonatal and fetal brain pathology
  • EEG and Brain-Computer Interfaces
  • Epilepsy research and treatment
  • Functional Brain Connectivity Studies
  • Neuroscience of respiration and sleep
  • Attention Deficit Hyperactivity Disorder
  • Infant Development and Preterm Care
  • Neonatal Respiratory Health Research
  • Neural and Behavioral Psychology Studies
  • Retinopathy of Prematurity Studies
  • Hearing, Cochlea, Tinnitus, Genetics
  • Autism Spectrum Disorder Research
  • Language Development and Disorders
  • Heart Rate Variability and Autonomic Control
  • Spinal Dysraphism and Malformations
  • Infant Health and Development
  • Hearing Loss and Rehabilitation
  • Optical Imaging and Spectroscopy Techniques
  • Advanced MRI Techniques and Applications
  • Neural dynamics and brain function
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Pharmacological Effects and Toxicity Studies
  • Spinal Cord Injury Research
  • Glycogen Storage Diseases and Myoclonus
  • Cognitive and developmental aspects of mathematical skills

Hospital Infantil de México Federico Gómez
2024

Instituto Tecnológico de Querétaro
2015-2023

Universidad Nacional Autónoma de México
2005-2016

Autonomous University of Queretaro
2002-2016

Instituto Nacional de Neurología y Neurocirugía
2008

Hospital General de México
1998-2002

Neurofeedback (NFB) is an operant conditioning procedure, by which the subject learns to control his/her EEG activity. On one hand, Learning Disabled (LD) children have higher values of theta absolute and relative power than normal children, on other it has been shown that minimum alpha necessary for adequate performance. Ten LD were selected with ratios (theta/alpha). The Test Of Variables Attention (TOVA) was applied. Children divided into two groups in order maintain similar IQ values,...

10.1177/155005940303400308 article EN Clinical Electroencephalography 2003-07-01

This report is a 2-year follow-up to previous study describing positive behavioral changes and spurt of EEG maturation with theta/alpha neurofeedback (NFB) training in group Learning Disabled (LD) children. In control paired group, treated placebo, were not observed the smaller maturational easily explained by increased age. Two years later, lag Control Group children increased, reaching abnormally high theta Relative Power values; absence continued neurological diagnosis remained LD....

10.1177/155005940603700307 article EN Clinical EEG and Neuroscience 2006-07-01

EEGs from 16 patients with stroke in three different stages of evolution were recorded. EEG sources calculated every 0.39 Hz by frequency domain VARETA. The main source was within the delta band 2 out 4 chronic patients, and 67% acute or subacute when edema (cytotoxic vasogenic) present. Moreover, all showed abnormal activity theta band. Sources cortical corticosubcortical infarcts located cortex, surrounding lesion. At site infarct, a decrease power observed. coincided and/or ischemic penumbra.

10.1177/155005940003100403 article EN Clinical Electroencephalography 2000-10-01

The sources of different EEG frequencies were studied in 25 normal children and 46 learning disabled (not otherwise specified) between 7 11 years old. computed using Frequency-domain Variable Resolution Electromagnetic Tomography which produces a three dimensional picture the currents at each frequency. Significant differences groups observed. LD showed more theta activity (3.5 to 7.02 Hz) frontal lobes control alpha (9.75 12.87 occipital areas. These results may support maturational lag...

10.1177/155005940203300405 article EN Clinical Electroencephalography 2002-10-01

Approximately 2–4 % of newborns with perinatal risk factors present hearing loss. The aim this study was to analyse the auditory function in infants brain injury (PBI). Brainstem evoked potentials (BAEPs), steady state responses (ASSRs), and tympanometry studies were carried out 294 PBI (586 ears, two had unilateral microtia-atresia). BAEPs abnormal 158 (27%) ASSRs 227 (39%), anomalies 131 (22%) ears. When ASSR thresholds compared BAEPs, assessment yielded 92% sensitivity 68% specificity....

10.3109/14992020903311370 article ES International Journal of Audiology 2010-01-01

Dark chocolate is rich in flavonoids that can have effects on body composition and cognitive performance. The aim of this study was to analyze the acute subchronic intake electrical brain oscillations. A with 20 healthy subjects (mean age 24.15 years) a control group five 23.2 carried out. In effect study, subjects' dark (103.72 mg/kg weight) low calories as fasting. group, only low-calorie milk. For effect, daily dose given for eight days. baseline electroencephalogram (EEG) recorded before...

10.3390/foods7110187 article EN cc-by Foods 2018-11-08

The precision between dipole Brain Electric Source Analysis (BESA) and brain distributed Variable Resolution Electromagnetic Tomography (VARETA) models for the localization of sources interictal epileptiform discharges in patients with partial complex epilepsy was compared. calculated analysis variable resolution electromagnetic tomography 20 recordings analyzed. origin dipoles temporal 18 cases, frontal 1 occipital another. One enough 7 whereas two were necessary 13 cases. paroxysmal...

10.1177/155005940203300107 article EN Clinical Electroencephalography 2002-01-01

The rate of premature births has increased in the past 2 decades. Ten percent birth survivors develop motor impairment, but almost half exhibit later sensorial, cognitive, and emotional disabilities attributed to white matter injury decreased volume neuronal structures. aim this study was test hypothesis that full-term infants differ their development face processing. A comparative longitudinal conducted at 4 8 months age. absolute power electroencephalogram analyzed both groups during 5...

10.1177/1550059416647904 article EN Clinical EEG and Neuroscience 2016-05-12

ADHD is a neurodevelopmental disorder appearing in childhood but remaining many cases adults. There are both pharmacological and non-pharmacological approaches to treating ADHD, they do not have the same efficacy all subjects. Better knowledge of neurophysiological basis this will allow for design more effective treatments. Studies performing qEEG analysis children suggest existence subgroups patients with different traits. fewer studies adults, who might undergone plastic changes allowing...

10.3390/jpm13091361 article EN Journal of Personalized Medicine 2023-09-07

Hazardous alcohol consumption (HAC) is a pattern of use that may result in harm for the user and/or those around them. Prior research has suggested HAC and dependence share some neurophysiological features but differ others.To determine whether presented different correlates.Two hundred subjects were screened or dependence. A quantitative electroencephalo-graphic analysis delta, theta, alpha beta absolute power, relative power mean frequency with not dependence, risk controls was...

10.33588/rn.6804.2018176 article EN Revista de Neurología 2019-01-01

Background Periventricular Leukomalacia (PVL) affects white matter, but grey matter injuries have also been reported, particularly in the dorsomedial nucleus and cortex. Both structures related to working memory (WM) processes. The aim of this study was compare behavioral performances EEG power spectra during a visuospatial task (VSWMT) toddlers with history PVL healthy toddlers. Methodology/Principal Findings A prospective, comparative WM conducted responses narrow-band VSWMT were compared...

10.1371/journal.pone.0069837 article EN cc-by PLoS ONE 2013-07-26

Background Approximately 2–4% of newborns with perinatal risk factors present hearing loss. Our aim was to analyze the effect aid use on auditory function evaluated based otoacoustic emissions (OAEs), brain responses (ABRs) and steady state (ASSRs) in infants injury profound Methodology/Principal Findings A prospective, longitudinal study Right side before after compared left (not stimulated used as control). All were subjected OAE, ABR ASSR evaluations use. The average threshold decreased...

10.1371/journal.pone.0041002 article EN cc-by PLoS ONE 2012-07-13

Hazardous alcohol consumption is a pattern of that leads to higher risk harmful consequences either for the user or others. This has been linked risky behaviors, accidents, and injuries. Individuals with hazardous do not necessarily present dependence; thus, study particular neurophysiological correlates this needs be carried out in nondependent individuals. Here, we quantitative electroencephalography analysis health sciences university students consumption, but dependence (HAC), control...

10.1097/wnr.0000000000000384 article EN Neuroreport 2015-05-30
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