The network architecture of individual differences: Personality, reward-sensitivity, and values✰

Individual differences in behavioral dispositions, values and motivation systems have been investigated in relative isolation from each other. We investigated the network structure of indicators derived from Reinforcement Sensitivity Theory, Five-Factor Model and Basic individual values in a large sample of young adults (N = 749). The network showed evidence of a small world structure indicating a small number of densely connected networks is sufficient to describe human personality. We identified a number of nodes (indicators) that were central within the network. An Exploratory Graph Analysis suggested ten distinct network clusters, which varied in terms of behavioral approach versus inhibition; exploration vs constraint and self/ego vs social orientation, demonstrating the complexity of individual differences from a motivational-situational perspective. A more complex dimensional exploration of personality networks allows for a more nuanced understanding of how personality systems can be motivated within specific environments and towards different internal or external targets.