Table 2.

Confidence ratings in the Rapid Serial Visual Presentation Task by participant group.

	The same	Closer-up	Farther-away	Same z-score	Closer-up z-score	Farther-away z-score
vmPFC patients	2.60 (1.90–2.96)	2.00 (1.77–3.00)	2.001	.37 (−1.26–1.16)	−1.24 (−1.98–2.00)	.33
Control patients	2.10 (1.71–2.43)	2.07 (1.86–2.60)	1.83 (1.00–2.00)	−.80 (−1.69–−.05)	−1.00 (−1.70–.71)	−.09 (−2.16–.33)
vmPFC healthy controls	2.21 (2.00–3.00)	2.29 (2.00–3.00)	2.00 (1.00–2.25)	–	–	–
Hippocampal patients	2.17 (1.36–2.88)	1.78 (1.00–2.42)	2.00 (1.00–2.00)	.53 (−1.68–2.47)	−1.14 (−2.84–.25)	.88 (−3.15–.88)
Hippocampal healthy controls	1.97 (1.33–2.62)	2.17 (1.75–3.00)	1.75 (1.00–2.00)	–	–	–

Notes. Median and range (in parentheses) of confidence scores. vmPFC = ventromedial prefrontal cortex. ¹ = only one patient gave a farther-away response, therefore no range is reported. Confidence was rated on a three-point scale: 1 = “not sure”, 2 = “fairly sure”, 3 = “very sure”.