Successor-like representation guides the prediction of future events in human visual cortex and hippocampus
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Netherlands
Figures
Figure 1
Sequence paradigm to probe successor-like representations.
(a) Stimulus timing for full sequence trials (top) and partial sequence trials (bottom). During full sequence trials, four dots were presented in rapid succession in a fixed sequence order …
Figure 2
V1 stimulus mapping.
(a) An independent stimulus localizer was used to identify V1 subpopulations that respond to individual dot locations (left). Stimulus-response profiles show tuning properties for selected V1 …
Figure 3
Successor-like representation of future sequence events in V1.
(a) BOLD activity during full sequence trials. (b) Schematic of all partial sequence trials (left) illustrating the omission of different predecessor (purple), or successor (orange) sequence …
Figure 4
Model comparison favors successor-like representation in V1.
(a) Probing predictions of the successor representation (SR) against the competing co-occurrence (CO) model. The relational structure of the full sequence A-B-C-D is translated into a transition …
Figure 5 with 1 supplement
Hippocampus represents spatial locations and engages in future-directed predictions.
(a) Hippocampus region of interest (green). (b) A pattern classifier was trained to distinguish between the eight stimulus locations during a perceptual localizer. Resulting stimulus-response …
Figure 5—figure supplement 1
Successor-like representation of future sequence events in hippocampus.
(a) Group averaged (n=35) hippocampus classification evidence during partial sequence trials shows enhanced activation of successor locations compared to predecessor locations. (b) Model comparison …
Figure 6
Stimulus localizer reveals complementary coactivation (tuning) properties in hippocampus and V1.
(a) Schematic of the localizer trial with the stimulated location ‘A’ and the non-stimulated locations (B, C, D, dashed circle) that were part of the sequence in the main task preceding the …
