Consistent with our previous study (Duarte et al. 2006), we found that high-functioning older adults demonstrated intact performance on a measure of subjective recollection, but impaired performance on a measure of objective recollection compared with young adults.
If it is the case that the reduced free autobiographical recall demonstrated by Berryhill et al. (2007) is attributable to impaired capture of bottom-up attention by memory representations, the bilateral lesion patients in the current experiment should exhibit reduced subsequent source recollection compared with their matched controls.
The researchers guided subjects' memories by saying "tell me everything you can remember about the event", and then further aided retrieval with cues like "what were you thinking, what were you feeling, and what was the lighting like in the cabin?" These detailed recollections were compared with the known sequence of events, and a control group who had suffered less traumatic memories.
One study reported smaller amygdala volumes in a cohort of breast cancer survivors with intrusive recollections compared to survivors without intrusive recollections, but none of the participants met diagnostic criteria for PTSD [ 18].
For comparison of effects across ROIs, estimates of recollection-related activity were compared with repeated-measures ANOVAs with factors for ROI, hemisphere, and delay.
We predicted that both types of episodic recollection task would activate dorsal mPFC compared with the nonepisodic control condition, since both episodic tasks involve considering social information.
Mean activity estimates were extracted from anatomical ROI masks of the anterior HF, posterior HF, PRC, and PHC, then compared with a memory (recollection, familiarity) x delay (immediate, delayed) repeated-measures ANOVA.
Finally, our reliance on the retrospective recollections may have resulted in the omission of key details and/or heightened the bias of their recall of events when compared with a prospective approach to data collection.
Differences in type of sedation and pain medication, number of patients, inclusion criteria and type of questionnaire used are possible explanations for the low recollection of pain in the present study as compared with previous ones.
Our goal was to test the hypothesis that the PPC would be involved in the recollection of episodic memories, as indicated by greater activation for hits compared with CRs of unrelated lures.
Contrast means were compared with repeated-measures ANOVAs with factors for memory status (recollection, familiarity) and delay (immediate, delayed).
