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Query: UMLS:C0751295 (memory loss)
 3,619 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Why do saccades interfere with spatial working memory? One possibility is that attention and saccades are tightly coupled, and performing a saccade momentarily removes attention from spatial working memory, degrading the memory representation. This cannot be the entire explanation, because saccades cause greater interference than do covert attentional shifts (Lawrence, Myerson, & Abrams, 2004). In addition, this saccadic degradation is limited to spatial but not object, configural, or verbal representations. We propose that saccadic remapping is partially responsible for this increased interference. To test this, we used a spatial change detection task, and during the retention interval, participants either performed a central task, a peripheral task without an eye movement, or a peripheral task that required a saccade. Using the method of constant stimuli allowed us to fit psychophysical functions in which we derived measures of spatial memory precision, guessing, and response bias. It is important that we found a directionally specific loss of memory precision, such that memory representations were less precise along the axis of the saccade. This was beyond the general loss of precision we found for covert shifts, suggesting that part of the effect is because of remapping. Saccades also increased guessing, but unlike the loss of precision, the effect was nondirectional. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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PMID:Saccadic eye movements smear spatial working memory. 3058 55

Was this a silver-lining playbook-my mother's death? We had planned for this moment, talked together about her wishes, filled out the paperwork: We were that kind of family-the one that talked and debated about life and death. And my mother, in her true tenacious fashion, rehearsed with us her dying wishes. The papers were filed with her primary care physician, scanned into the Electronic Medical Record (EMR), and a copy placed in their freezer-a clever way to find it in a crisis. The playbook was in place. The rest of the story is on replay in my mind. I remember asking to speak to the physician in a demanding tone and wanting to know why my mom was intubated . . . "Didn't any one look at the paper work?" The Emergency Department (ED) physician explained, "Your mom's blood pressure is dropping. She doesn't have a complicated medical condition so we want to give her pressors so that we can keep her alive." I replied that neither my mom nor the family wanted any intervention. This experience pulled us into the power of the protocols that make it possible to keep hearts beating and lungs breathing. In my mother's case, her uncomplicated medical history in the EMR triggered those standing lifesaving orders. But no one assessed her personhood. No one asked about her level of functioning, her pain, her memory loss, her desires. No one took a minute to ask about this mother of five children who sang her way through life. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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PMID:A silver lining playbook? My mom's death. 3105 26

Episodic memory declines with older age, but it is unresolved whether this decline reflects reduced probability of successfully retrieving information from memory, or decreased precision of the retrieved information. Here, we used continuous measures of episodic memory retrieval in combination with computational mixture modeling of participants' retrieval errors to distinguish between these two potential accounts of age-related memory deficits. In three experiments, young and older participants encoded stimulus displays consisting of everyday objects varying along different perceptual features (e.g., location, color and orientation) in a circular space. At test, participants recreated the features of studied objects using a continuous response dial. Across all 3 experiments, we observed significant age-related declines in the precision of episodic memory retrieval, whereas significant age differences in retrieval success were limited to the most challenging task condition. Reductions in mnemonic precision were evident across different object features retained in long-term memory and persisted after controlling for age-related decreases in the fidelity of perception and working memory. The findings highlight impoverished precision of memory representations as one factor contributing to age-related episodic memory loss and suggest that the cognitive and neural changes associated with older age may differentially affect distinct aspects of episodic retrieval. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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PMID:Healthy ageing reduces the precision of episodic memory retrieval. 3192 30

Many older adults experience age-associated memory changes. Scholars have explored more intensive memory loss problems (i.e., dementia) within marriage, however minor memory failures may also impact older adults' relationships. Minor daily memory failures could bring frustrations that manifest as negative affect, which could then spill over into marital interactions. The current study utilized a daily framework to examine microlongitudinal pathways of memory to negative affect to marital interactions among 191 couples across 14 consecutive days. Dyadic multivariate multilevel structural equation models were used to explore daily positive and negative marital interactions as a function of 2 days prior (t-2) memory failures and prior day (t-1) negative affect. Findings suggest that between-person memory failures were consistently linked with negative affect, and between-person negative affect was linked to fewer daily positive and more daily negative marital interactions for husbands, as well as more daily negative marital interactions for wives. Within-person t-2 memory failures were linked to t-1 negative affect for husbands. Indirect associations linking memory failures with negative marital quality through negative affect were significant for wives, and only at a between-person level. The effects of daily memory failures have important implications for daily negative affect and negative marital interactions, and these effects may last for multiple days. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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PMID:Microlongitudinal analysis of memory failures, negative affect, and marital interactions. 3198 45