Supplementary Figure 7: Neither hippocampal activity nor classifier evidence predict trial or context effect.
From: Reinstated episodic context guides sampling-based decisions for reward
The hippocampus has long been understood to be critical to episodic memory encoding and retrieval. We repeated the analysis of Figure 3c using an anatomically defined mask of bilateral hippocampus (two subjects’ data excluded due to badly warped anatomical masks). a. Univariate hippocampal activity did not scale with either the single-trial reward effect (mean slope=−0.0231 SEM 0.0288, t(29)=-0.7754, P=0.4444), nor the context reward effect (mean slope=0.0277 SEM 0.0285, t(29)=0.9657, P=0.3422), nor was there an interaction between the effects (t(29)=1.0715, P=0.2928). b. We trained a classifier to discriminate scenes in this region, and did not observe a reliable relationship between hippocampal scene evidence and either reminded trial (mean slope=-0.0069 SEM 0.0140, t(29)=-0.4898, P=0.6280) or reminded context reward effects (mean slope=0.0045 SEM 0.0148, t(29)=0.3010, P=0.7656). Error bars are +/- 1 SEM.
