Figure 4

Context conditioning results in acquisition explicit threat memory. Bar plots reflecting mean estimated number of received shocks (a) and mean estimated reinforcement rate (b) for the threat (CTX+, red), safe context (CTX−, blue) tested at the end of the experiment. Dashed grey line indicates actual number of administered shocks (a: 8 shocks in CTX+ only) and actual reinforcement rate (b) 60% of CTX+ trials featured delivery of shock). Following iVR conditioning, participants accurately estimated having received more shocks in the CTX+ than CTX− and associated the CTX+ with a higher reinforcement rate then the CTX−. (c) Bar plots reflecting mean memory scores on four-alternative choice memory questionnaire testing memory for items that had been present in the CTX+ and CTX−. Dashed line indicates chance level (25%). Participants remembered items from both context above change there were no difference in item memory between contexts. Error bars = s.e.m. Coloured geometrical shapes represent individual data-points. ***p < 0.001.