Extended Data Fig. 6: d’ as a function of set size.
From: Psychophysical scaling reveals a unified theory of visual memory strength
Data from the set size experiment reported in the main text. While memory strength varies according to a variety of different factors, many researchers have been particularly interested in the influence of set size. TCC shows that at a fixed encoding time and with a fixed delay, memory strength (d’) decreases according to a power law as set size changes, broadly consistent with fixed resource theories of memory25,26. However, capacity cannot be fixed globally, as the total “capacity” appears to smoothly change with encoding time and delay and differs for different stimuli.
