Article Figures & Data
Figures
- Figure 1.
Experimental paradigm. Participants were shown two objects for 2 s each with a random interstimulus interval (ISI) of between 1 and 3 s during which a fixation cross was shown. Next, another fixation cross was shown for 1–3 s after which a red cue was presented indicating which of the two objects the participant had to imagine. Subsequently, a frame was shown for 3.5 s on which the participant had to imagine the cued stimulus. After this, they had to rate their experienced imagery vividness on a scale from 1 (not vivid at all) to 4 (very vivid).
- Figure 2.
Average trial-by-trial vividness ratings for the different stimulus categories. For each box: the central mark indicates the median, the edges of the box indicate the 25th and 75th percentiles, and the whisker indicates the minimum and maximum values. Each dot indicates the average for one participant. *p < 0.05. **p < 0.01.
- Figure 3.
Perception and imagery versus baseline. Blue-green represents t values for perception versus baseline. Red-yellow represents t values for imagery versus baseline. Shown t values were significant on the group level, FDR corrected for multiple comparisons.
- Figure 4.
Perception versus imagery. Blue-green represents t values for perception versus imagery. Red-yellow represents t values for imagery versus perception. Shown t values were significant on the group level, FDR corrected for multiple comparisons.
- Figure 5.
Parametric modulation by experienced imagery vividness per category. Shown distinctness values were significant at the group level.
- Figure 6.
Overlap in category representations between perception and imagery. Red-yellow represents that the overlap is shown that is not modulated by vividness. Blue-green represents the modulation by vividness. Shown distinctness values were significant on the group level.
- Figure 7.
Difference between main effect of perception and main effect of imagery, separately for the four vividness levels. The results are shown for a voxel in the early visual cortex that showed the highest overlap between the main effect of perception and the main effect of the most vivid imagery, as quantified by a conjunction analysis. MNI coordinates: 34, −96, 4.
