Table 1.

Memory test results and volumetric MRI data

ParticipantNo. factual details recalledVerbal recognition (% correct)Picture recognition (% correct)IQ–MQHC volumeHC % lossAmygdala volumeAmygdala % loss
Am1 (3344)0 | NA40%*** | NA50%*** | NA45NANANANA
Am2 (2144)3 | 080% | 100%70%*** | 70%***43−3.92**44%−0.224%
Am3 (1846)2 | 360%*** | 20%***90% | 90%27−4.23**47%−0.914%
Am4 (1606)5 | 560%*** | 80%80%*** | 50%***25−3.99**41%−1.1817%
Am5 (2363)15 | 960%*** | 100%90% | 90%25−2.64*28%−0.68%
Group Data
Severe Amnesics
avg.5 | 460% | 75%76% | 75%33−3.7040%−0.7311%
range0–1520–10050–9025–45−2.6– −4.228–47−0.2– −1.24–17
Normal Comparisons
avg.29 | 3588% | 100%100%NANANANANA
range18–4560–100100–100
  • Memory test results for the sadness induction are presented in the left side of each cell and results for the happiness induction are presented in the right side of each cell. IQ − MQ = spread between general intelligence and memory (Full Scale IQ − General Memory Index); HC volume = SDs below the hippocampal volume of 87 control subjects; HC % loss = estimated % loss of hippocampal tissue; Amygdala volume = SDs below the amygdala volume of 87 control subjects; Amygdala % loss = estimated % loss of amygdala tissue. For more details on the volumetric MRI analyses see ref. 38. *P < 0.05, **P < 0.01: significantly different than expected based on age and sex; ***performance was not significantly above chance based on the binomial test (P < 0.05).