Publications by authors named "Eric S Porges"
Background: Transcutaneous stimulation of the auricular branch of the vagus nerve (tVNS) was administered to participants diagnosed with mild cognitive impairment (MCI) to improve word-list memory (primary outcome) and other cognitive skills.
Method: A randomized, double-blind, placebo-controlled crossover design was used for this trial. Participants with MCI (n = 59) were sorted into one of two sequences: Sham-tVNS or tVNS-Sham.
Objective: To evaluate the construct validity of the NIH Toolbox Cognitive Battery (NIH TB-CB) in the healthy oldest-old (85+ years old).
Method: Our sample from the McKnight Brain Aging Registry consists of 179 individuals, 85 to 99 years of age, screened for memory, neurological, and psychiatric disorders. Using previous research methods on a sample of 85 + y/o adults, we conducted confirmatory factor analyses on models of NIH TB-CB and same domain standard neuropsychological measures.
Introduction And Objectives: GABAergic and glutamatergic neurotransmitter systems are central to the pathophysiology of chronic pain and are equally affected by aging processes. We measured levels of frontal gamma-aminobutyric acid (GABA) and the combined resonance of glutamate and glutamine (Glx) in vivo using proton magnetic resonance spectroscopy (H-MRS) to elucidate age-specific and pain-specific associations with clinical and experimental pain in older adults.
Methods: Younger (18-24, n = 24) and older (60-94, n = 41) individuals part of a larger study (Neuromodulatory Examination of Pain and Mobility Across the Lifespan [NEPAL]) underwent questionnaires, quantitative sensory testing, and H-MRS Mescher-Garwood point-resolved spectroscopy to measure GABA and Glx levels in prefrontal and sensorimotor brain regions.