Fig. 2: Analytical pipeline and predictions of the present study.
From: Episodic events are flexibly encoded in both integrated and separated neural representations
Experimental stimuli were created using The Sims 4 (© Electronic Arts Inc.). Placeholder figures are presented here for illustration. A Trial structure. Each movie began with the display of Sim A/C/Y for two seconds, followed by a three-second animation of this Sim in context. Afterward, a one-second fixation cross was presented, followed by the presentation of the Sim B/X for two seconds. The movie ended with a five-second animation of the two Sims AB/BC/XY interacting in a context. We measured the neural representational similarity of the ‘Sim A and B in Context’ of AB movie (outlined in red) and each timepoint of the corresponding BC movie (outlined in red). B Feature Selection. To identify the time-frequency features that were sensitive to the content of the AB movies, we compared the wavelet coherence between different repetitions of the same AB movie against the coherence between different AB movies. C A time-resolved neural representational similarity analysis was performed by correlating the representative features of the AB movie with the patterns of the corresponding BC movie across the entire encoding period. Systematic similarities and dissimilarities were estimated by contrasting the neural patterns similarities between AB and corresponding BC movie against two baselines: 1) neural similarities between AB and XY movies, and 2) neural similarities between AB and non-corresponding BC movies. D Systematic similarities, indicative of memory integration, should predict AC retrieval performance, whereas systematic dissimilarities, indicative of memory separation, should predict source memory performance.
