Extended Data Fig. 5: Single neurons encoded the colours of remembered items.
From: Shared mechanisms underlie the control of working memory and attention
a, Mean firing rates for example neurons during the retro condition, binned by the colour (indicated by line colour) of the selected (solid) or non-selected (dashed) stimulus. Example neurons are shown for all four brain regions (labelled at top left). b, Mean ± s.e.m. selectivity of neurons in all four regions for the colour of the selected and non-selected stimulus (in light and dark blue, respectively) in each brain region, averaged across neurons. Selectivity is measured using a PEV statistic (Methods) and shows similar results to when using an entropy statistic (Fig. 3). LPFC: 574 neurons, FEF: 163 neurons, parietal: 292 neurons, V4: 311 neurons. Horizontal bars indicate significant information for the selected item (light blue), the non-selected item (dark blue), and a significant difference in information about the selected and non-selected items (black). Bar width indicates significance: P < 0.05, 0.01, and 0.001 for thin, medium, and thick, respectively (two-sided cluster-corrected t-tests).
