Sébastien Ballesta

This study examines risk management strategies in social grooming between Tonkean and rhesus macaques, finding species-specific differences in grooming patterns and body site preferences.

The paper integrates longitudinal behavioral data with resting-state fMRI in macaques to show how attention varies across lifespan, social status, and brain connectivity.

This study examines how social affordances influence approach decisions in wild crested macaques, finding that behavioral cues and subgroup composition affect interaction opportunities.

The paper examines the relationship between amygdala volume and social tolerance in macaques, finding that tolerant species have smaller amygdala volumes that decrease with age, while intolerant species show increasing amygdala volumes.

This study examines spatial occupancy patterns in macaques, finding that social hierarchy and affiliation influence their spatial distribution and interactions.

The paper shows that orbitofrontal cortex (OFC) neurons contribute to value comparison in economic choices by disrupting the decision process without affecting offer values through electrical stimulation.

This study investigates choice biases in economic decisions under sequential offers in rhesus monkeys, identifying distinct neural stages responsible for accuracy, order bias, and preference bias.

The paper shows that the same neural circuit in the orbitofrontal cortex supports economic choices under simultaneous or sequential offers.

This study shows that electrical stimulation of orbitofrontal cortex in rhesus monkeys biases economic choices by altering encoded values.

This study investigates economic decisions under sequential offers in macaques, finding that OFC neurons use similar mechanisms as simultaneous offers through circuit inhibition.