Carlos V. Grijalva

Carlos V. Grijalva is a physiological psychologist and academic. He is an emeritus professor of Psychology and Neuroscience and a member of the Brain Research Institute at the University of California, Los Angeles. His work has conducted research on the psychobiology of stress, behavior, and disease in animal models, with a focus on neural and behavioral mechanisms of feeding and gastrointestinal function.

Education Grijalva received a B.A. degree from the University of Arizona in 1972. Later, he completed his M.A. from Arizona State University in 1974 and his Ph.D. from the same university in 1977. and as associate dean in the Division of Honors and Undergraduate Programs from 1991 to 1996. Additionally, from 2007 to 2017 and again from 2019 to 2020, he was associate dean of the UCLA Graduate Division. He is an emeritus professor of Psychology and Neuroscience at UCLA, and is a member of the university's Brain Research Institute.

Research Grijalva's research has examined the neural mechanisms connecting feeding behavior, stress, and digestive function, with a focus on the hypothalamus and related brain regions. Through animal studies, he showed that damage to specific areas of the hypothalamus could cause gastric ulcers and other disturbances in digestion, demonstrating a link between brain activity and gastrointestinal processes. His experiments indicated that factors such as diet and insulin levels influence the development of gastric lesions. He identified the ventromedial hypothalamus as an inhibitory center for gastric activity, while the medial amygdala appeared to enhance acid secretion.

Grijalva also found that hormone responses, such as gastrin release, were centrally mediated and that the hypothalamus and limbic system contribute to the cephalic phase of digestion, which is activated by sensory cues. In addition to his work on gastric function, he investigated dopaminergic pathways and observed changes in neurotransmitter levels following neural stimulation or damage. In studies related to stress and eating disorders, he demonstrated that thermal treatment increased survival in animal models of activity-based anorexia, showing that exposure to heat shortly before a moribund state improved both the likelihood and duration of survival.

Awards 2005 – Distinguished Teaching Award, UCLA 2012 – Diversity, Equity and Inclusion Award, UCLA Academic Senate

Selected articles