TY - JOUR
T1 - The influence of perceptual similarity and individual differences on false memories in aging
AU - Dennis, Nancy A.
AU - Turney, Indira C.
N1 - Funding Information:
The authors would like to thank the Penn State Social, Life, and Engineering Sciences Imaging Center (SLEIC), 3T MRI Facility. We also thank members from the CAN Lab, including Christina Webb, John Huhn, and Kyle Kurkela, for helpful comments throughout the project and during the writing process. This work was supported by a National Science Foundation grant [ BCS1025709 ] awarded to NAD and was conducted while NAD was an AFAR Research Grant recipient from the American Federation for Aging Research , as well as a Graduate Research Fellowship from the National Science Foundation awarded to ICT [ DGE1255832 ].
PY - 2018/2
Y1 - 2018/2
N2 - Previous false memory research has suggested that older adults' false memories are based on an overreliance on gist processing in the absence of item-specific details. Yet, false memory studies have rarely taken into consideration the precise role of item-item similarity on the cognitive and neural mechanisms underlying perceptual false memories in older adults. In addition, work in our laboratory has suggested that when investigating the neural basis of false memories in older adults, it is equally as critical to take into account interindividual variability in behavior. With both factors in mind, the present study was the first to examine how both controlled, systematic differences in perceptual relatedness between targets and lures and individual differences in true and false recognition contribute to the neural basis of both true and false memories in older adults. Results suggest that between-subject variability in memory performance modulates neural activity in key regions associated with false memories in aging, whereas systematic differences in perceptual similarity did not modulate neural activity associated with false memories.
AB - Previous false memory research has suggested that older adults' false memories are based on an overreliance on gist processing in the absence of item-specific details. Yet, false memory studies have rarely taken into consideration the precise role of item-item similarity on the cognitive and neural mechanisms underlying perceptual false memories in older adults. In addition, work in our laboratory has suggested that when investigating the neural basis of false memories in older adults, it is equally as critical to take into account interindividual variability in behavior. With both factors in mind, the present study was the first to examine how both controlled, systematic differences in perceptual relatedness between targets and lures and individual differences in true and false recognition contribute to the neural basis of both true and false memories in older adults. Results suggest that between-subject variability in memory performance modulates neural activity in key regions associated with false memories in aging, whereas systematic differences in perceptual similarity did not modulate neural activity associated with false memories.
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U2 - 10.1016/j.neurobiolaging.2017.10.020
DO - 10.1016/j.neurobiolaging.2017.10.020
M3 - Article
C2 - 29190526
AN - SCOPUS:85035076483
VL - 62
SP - 221
EP - 230
JO - Neurobiology of Aging
JF - Neurobiology of Aging
SN - 0197-4580
ER -