Figure 4.

Connectivity determined by Bayesian model averaging of models in the winning family, which all shared driving inputs solely to the dlPFC (Occam's window, 11.8 models; SD, 5.3). All solid connections are significant at a posterior probability threshold of 95% that the posterior mean is larger than zero. The dotted connections are not significant. Driving inputs represent cue information about all reward types (high and low), while modulatory inputs represented only high reward cues. Left, The intrinsic (baseline) connectivity for each connection. Right, Modulation of connectivity during reward motivation. Modulation of the blue connections was varied in the model space. Connection strengths are indicated on each arrow (in hertz). Only the connections from dlPFC to VTA and NAcc are significantly modulated by reward motivation.