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Table 2 Group performance at the Cambridge Face Memory Test (CFMT) of prosopagnosic (P) and non-prosopagnosic (NP) autistic (AUT) and neurotypical (NT) participants

From: Face individual identity recognition: a potential endophenotype in autism

CFMT (prosopagnosia cut-off = 42) N mean number of correct responses (over a total of 72) SD Range
NT (NT-NP + NT-P) 80 56.20
95% CI [54.03, 58.37]
9.76
95% CI [8.45, 11.56]
25–72
NT-NP 75 57.45
95% CI [55.48, 59.42]
8.57
95% CI [7.38, 10.21]
43–72
NT-P 5 37.40
95% CI [28.42, 46.38]
7.23
95% CI [4.33, 20.78]
25–42
AUT (AUT-NP + AUT-P) 80 46.85
95% CI [44.36, 49.34]
11.20
95% CI [9.69, 13.26]
18–72
AUT-NP* 51 53.64
95% CI [51.49, 55.79]
7.55
95% CI [6.31, 9.41]
43–72
AUT-P 29 35.52
95% CI [33.28, 37.75]
5.87
95% CI [4.66, 7.94]
18–42
  1. NT neurotypical participants, AUT autistic participants, P prosopagnosic, NP non-prosopagnosic, CFMT Cambridge Face Memory Test, SD standard deviation, CI confidence interval
  2. *AUT-NP mean, SD, and range do not include a participant who scored 36 and was assigned to the AUT-NP group as they did not meet their age-standardized prosopagnosia cut-off