Table 1. Average generalization scores (SE) for the decoding of within-chunk position codes.

	Preparation
	Theta		Alpha
Generalization variable	Reference	Generalized	Reference	Generalized
Experiment 1
Elements	0.381 (0.003)	0.377 (0.003)	0.378 (0.004)	0.370 (0.004)
Chunk positions	0.384 (0.004)	0.387 (0.004)	0.374 (0.002)	0.375 (0.002)
Experiment 2
Elements	0.367 (0.004)	0.363 (0.004)	0.369 (0.005)	0.360 (0.005)
Chunk positions	0.369 (0.003)	0.373 (0.003)	0.369 (0.004)	0.362 (0.004)
	Probe
	Theta		Alpha
Generalization variable	Reference	Generalized	Reference	Generalized
Experiment 1
Elements	0.394 (0.005)	0.385 (0.005)	0.362 (0.007)	0.364 (0.007)
Chunk positions	0.388 (0.005)	0.383 (0.005)	0.361 (0.004)	0.358 (0.004)
Experiment 2
Elements	0.404 (0.003)	0.394 (0.005)	0.378 (0.005)	0.378 (0.005)
Chunk positions	0.397 (0.006)	0.383 (0.006)	0.375 (0.005)	0.376 (0.005)

Note. The table shows for each generalization variable, position-code generalization scores and corresponding reference scores (see Generalization Analysis in the Materials and methods section for details). Results were averaged for either the preparation or the probe period across time (i.e. 600–0 ms for the preparatory interval, 0–300 ms for the probe interval) and frequency values within theta (4–7 Hz) and alpha (8–12 Hz) bands.