Human and machine behavioral modeling and analysis are active areas of study in a variety of domains of current interest. Notions of what behavior means as well how behaviors can be represented, compared, shared, integrated and analyzed are not well established and vary from domain to domain, even from researcher to researcher. Our current research suggests that a common framework for the syste...

In the present study, we examined the relationship between developmental modulation of socioaffective brain systems and adolescents' preoccupation with social evaluation. Child, adolescent, and adult participants viewed cues indicating that a camera was alternately off, warming up, or projecting their image to a peer during the acquisition of behavioral-, autonomic-, and neural-response (functi...

Background Regulatory interactions between the gut and brain are essential for energy homeostasis across systems. Current evidence indicates high-fat, high-carbohydrate diets (HFHC) impact Alzheimer’s disease (AD) pathophysiology, however, mechanisms underlying this association poorly understood. We hypothesize that (1) Tumor Necrosis Factor (TNF) mediates metabolic inflammation in an obesogeni...

Introduction: Memory and cognitive impairments are some of devastating outcomes of Multiple Sclerosis (MS) plaques in hippocampus, the gray matter part of the brain. The present study aimed to evaluate the intrahippocampal injection of Ethidium Bromide (EB) as a simple and focal model to assess cognition and gray matter demyelination. Methods: Thirty Wistar rats were divided into three groups:...

Behavioral patterns of pairs of guinea pigs were recorded in 15-min observation sessions on alternate days during a 6-day baseline phase and a 21- to 25-day period following the introduction of an ascorbate-free diet. Ascorbate-deficient animals were compared to two pair-fed control groups. During the last 5 days of the experiment, marked reductions in frequency and/or cumulative duration of ac...

Risky decisions may involve uncertainty about possible outcomes (i.e., reward risk) or uncertainty about which action should be taken (i.e., behavioral risk). Determining whether different forms of risk have distinct neural correlates is a central goal of neuroeconomic research. In two functional magnetic resonance imaging experiments, subjects viewed shapes that had well-learned response-rewar...

Brain imaging studies have explored the neural mechanisms of recovery in adults following acquired disorders and, more recently, childhood developmental disorders. However, the neural systems underlying adult rehabilitation of neurobiologically based learning disabilities remain unexplored, despite their high incidence. Here we characterize the differences in brain activity during a phonologica...

Semantic knowledge is based on the way we perceive and interact with the world. However, the jury is still out on the question: to what degree are neuronal systems that subserve acquisition of semantic knowledge, such as sensory-motor networks, involved in its representation and processing? We will begin with a critical evaluation of the main behavioral and neuroimaging methods with respect to ...

introduction: in the present study, the effect of an inducible no synthase (inos) inhibitor, aminoguanidine (ag) on lipopolysaccharide (lps)-induced memory impairment and oxidative stress and inflammation parameters was evaluated. materials and methods: the rats were divided into 5 groups and treated: 1) control (saline), 2) lps (1 mg/kg), 3-5) ag 50, 100 and 150mg/kg 30 min before lps injectio...