Fig 1.
Two oriented gratings were presented sequentially, each at one of 9 possible locations (white circles are included for illustration but were not present in the actual experiment). After Delay1.1, a numeral (Cue1) indicated whether the sample item presented first or second would need to be recalled after Delay 1.2. Recall of the cued item was performed on a recall dial (Recall1), then, after a 0.5-s blank interval, a second cue (Cue2) indicated whether the sample item presented first or second would need to be recalled after Delay2. DSR, dual serial retrocuing.
Fig 2.
Time course of IEM reconstructions of stimulus orientation.
(A) Time course of the slope of orientation reconstructions in early visual ROI. (B) Time course of the slope of orientation reconstructions in IPS ROI. Slopes of the orientation reconstructions of the 2 sample items were plotted as a function of time from the beginning of the trial through the time point concurrent with the end of Delay1.2 and the onset of Recall1 (0–18 s after trial onset). All results were from PMI-trained IEMs. Red lines represent the PMI, and blue lines represent the UMI. Gray shaded area indicates display of Cue1 (10–10.75 s). Red, blue, and black dots indicate p < 0.05 for significant reconstruction of PMI, significant reconstruction of the UMI, and a significant difference between the two, respectively. All error bars indicate ± 1 SEM. Data are available at osf.io/G4C3N. a.u., arbitrary unit; IEM, inverted encoding model; IPS, intraparietal sulcus; PMI, prioritized memory item; ROI, region of interest; UMI, unprioritized memory item.
Fig 3.
IEM reconstructions of stimulus orientation in Delay1.2.
(A) IEM reconstructions of stimulus orientation during late Delay1.2 (18 s after trial onset) in early visual ROI. (B) IEM reconstructions of stimulus orientation during late Delay1.2 in IPS ROI. All results were from PMI-trained IEMs. Red lines represent the PMI, and blue lines represent the UMI. All error bars indicate ± 1 SEM. Data are available at osf.io/G4C3N. a.u., arbitrary unit; IEM, inverted encoding model; IPS, intraparietal sulcus; PMI, prioritized memory item; ROI, region of interest; UMI, unprioritized memory item.
Fig 4.
Time course of IEM reconstructions of stimulus location.
(A) Time course of the slope of location reconstructions in early visual ROI. (B) Time course of the slope of location reconstructions in IPS ROI. Slopes of the location reconstructions of the 2 sample items were plotted as a function of time from the beginning of the trial through the time point concurrent with the end of Delay1.2 and the onset of Recall1 (0–18 s after trial onset). All results were from PMI-trained IEMs. Red lines represent the PMI, and blue lines represent the UMI. Gray shaded area indicates display of Cue1 (10–10.75 s). Red, blue, and black dots indicate p < 0.05 for significant reconstruction of PMI, significant reconstruction of the UMI, and a significant difference between the two, respectively. All error bars indicate ± 1 SEM. Data are available at osf.io/G4C3N. a.u., arbitrary unit; IEM, inverted encoding model; IPS, intraparietal sulcus; PMI, prioritized memory item; ROI, region of interest; UMI, unprioritized memory item.
Fig 5.
IEM reconstructions of stimulus location in Delay1.2.
(A) IEM reconstructions of stimulus location during late Delay1.2 (18 s after trial onset) in early visual ROI. (B) IEM reconstructions of stimulus location during late Delay1.2 in IPS ROI. All results were from PMI-trained IEMs. Red lines represent the PMI, and blue lines represent the UMI. All error bars indicate ± 1 SEM. Data are available at osf.io/G4C3N. a.u., arbitrary unit; IEM, inverted encoding model; IPS, intraparietal sulcus; PMI, prioritized memory item; ROI, region of interest; UMI, unprioritized memory item.