Can Changes in Older Adults' Technology Use Patterns be Used to Detect Cognitive Decline?

BACKGROUND AND OBJECTIVES

The number of older adults diagnosed with dementia is expected to more than double by mid-century. Monitoring older adults' cognitive functioning is essential for the early detection of dementia, which can increase treatment efficacy and slow the disease progression. Current approaches to detect preclinical dementia are expensive, invasive, and are not accessible to everyone. This study aimed to determine whether technology use patterns could be used as an indicator of cognitive change.

RESEARCH DESIGN AND METHODS

Using six waves (2015 - 2020) from the National Health and Aging Trends Study (NHATS), we examined within-person and between-person effects of stopping four types of technology use on four cognitive outcomes.

RESULTS

Our analyses showed that stopping the use of the Internet, computers, tablets, and sending texts and emails were related to cognitive decline.

DISCUSSION AND IMPLICATIONS

These results suggest that monitoring technology use patterns may be an innovative approach that is economical and efficient to identify individuals at risk of cognitive decline.

Social Media Use May Not Be As Bad As Some Suggest: Implication for Older Adults

Background and Objectives

Social media use (SMU) has increased over the past decade among older adults. Cross-sectional studies report SMU is related to negative mental health outcomes (i.e., depression). Given depression is the most common mental health issue for older adults and increases the risk of morbidity and mortality, determining longitudinally whether SMU is related to increased depression is critical. This study examined the longitudinal relationship between SMU and depression.

Research Design and Methods

Data from 6 waves (2015-20) of the National Health and Aging Trends Study (NHATS) were analyzed. Participants included a nationally representative sample of U.S. older adults, aged 65 years and older (N = 7,057). We used a Random Intercept Cross-Lagged Panel Modeling (RI-CLPM) framework to examine the relationship between primary outcomes of SMU and depression symptoms.

Results

No pattern was found of SMU predicting depression symptoms, or depression symptoms predicting SMU. The major driver of SMU in each wave was SMU in the previous wave. On average, our model accounted for 3.03% of the variance in SMU. The major predictor of depression in each wave was the pre-existing depression. Our model accounted for an average of 22.81% of the variance in depressive symptoms.

Discussion and Implications

The results suggest that SMU and depressive symptoms are driven by the previous patterns of SMU and depression, respectively. We did not find any patterns of SMU and depression influencing each other. NHATS measures SMU with a binary instrument. Future longitudinal research should employ measures that account for SMU duration, type, and purpose. These findings suggest that SMU may not be related to negative health outcomes, in this case, depression, for older adults.

Online health information seeking and the association with anxiety among older adults

Introduction

The Internet supplies users with endless access to a wealth of information and is generally the first source searched by U.S. adults (18 years and older) when seeking health information. Age and anxiety are associated with online health information seeking (OHIS). Older adults (65 years and older) are increasing their OHIS. Importantly, OHIS can potentially lead to improved health outcomes for older adults. The relationship between OHIS and anxiety is less clear. Studies report those with more symptoms of anxiety are more likely to be OHIS, while other studies find the reverse pattern or no association. Generalized anxiety disorder affects up to 11% of older adults and is oftentimes unrecognized and untreated.

Methods

To address the mixed findings in the literature, we analyzed six waves (2015-2020) of data from the National Health and Aging Trends Study to assess the causal relationship between anxiety and OHIS using a Random Intercept Cross-lagged Panel Model framework.

Results

We found that while anxiety symptoms lead to OHIS in the next wave, OHIS was not associated with anxiety symptoms in the next wave.

Discussion

This suggests that for this sample of older adults, OHIS does not reduce or exacerbate older adults' symptoms of anxiety.

Active and passive social media use are differentially related to depressive symptoms in older adults

OBJECTIVES

Previous research on social media use (SMU) and mental health has focused on younger individuals. For example, in young adults active SMU (e.g. posting content) has been related to decreased depressive symptoms, whereas passive SMU (e.g. browsing content) has been related to increased depressive symptoms. These relationships have not yet been investigated in older adults, however, even though SMU and poor mental health are common.

METHODS

We collected data from adults aged 65 years and older, and categorized SMU into active and passive dimensions with a principal component analysis. Next, we conducted t-tests and logistic regressions to assess whether older adults' SMU was associated with depressive symptoms.

RESULTS

Our analysis revealed that active SMU was associated with increased odds for depressive symptoms, whereas passive SMU was associated with decreased odds for depressive symptoms.

CONCLUSION

Our results suggest that the relationships between active and passive SMU and depressive symptoms in older adults are different from previous literature focusing on younger individuals. We theorize that these findings may be due to older adults' engaging in fewer social comparisons overall, and hence experiencing fewer negative feelings while passively viewing others' social media posts.

Established Adults, Who Self-Identify as Smartphone and/or Social Media Overusers, Struggle to Balance Smartphone Use for Personal and Work Purposes

Smartphone ownership and use continues to proliferate, allowing people to easily access online communication, entertainment, and information. Importantly, individuals can perceive that they overuse their smartphone and/or the social media applications (apps) they access on their devices. Much of the research on smartphone overuse has focused on youth and emerging adults, with little research focusing on individuals in the established adulthood stage of life. This study examines smartphone use among established adults who perceive that they overuse their smartphone and/or social media. As part of a larger study, we conducted in-depth interviews with 21 individuals (30-45 years old) who self-identified as smartphone and/or social media overusers. Data were collected through a pre-survey, 1-hour interview, and smartphone use screenshots. Audio-recorded interviews were transcribed and then coded using NVivo software. Participants' average age was 35.9 years (SD = 4.1). The majority of the sample were female (67%), White (76%), and had a master's degree or higher (76%). Participants spent an average of 215 min on their smartphone daily, primarily using social media, video conferencing, and texting apps. Issues with smartphone use occurred when there was an unclear separation between work and personal use. Participants felt pressure to always respond quickly to work emails. An effort was made to limit smartphone use for work and during family time to be present for their family. Established adults strive to balance smartphone use for personal and work purposes. Creating boundaries for how and when established adults use their smartphone may help them find this balance.

Trucking in the Era of COVID-19

COVID-19 resulted in health and logistical challenges for many sectors of the American economy, including the trucking industry. This study examined how the pandemic impacted the trucking industry, focused on the pandemic’s impacts on company operations, health, and stress of trucking industry employees. Data were collected from three sources: surveys, focus groups, and social media posts. Individuals at multiple organizational levels of trucking companies (i.e., supervisors, upper-level management, and drivers) completed an online survey and participated in online focus groups. Data from focus groups were coded using a thematic analysis approach. Publicly available social media posts from Twitter were analyzed using a sentiment analysis framework to assess changes in public sentiment about the trucking industry pre- and during-COVID-19. Two themes emerged from the focus groups: (1) trucking company business strategies and adaptations and (2) truck driver experiences and workplace safety. Participants reported supply chain disruptions and new consumer buying trends as having larger industry-wide impacts. Company adaptability emerged due to freight variability, leading organizations to pivot business models and create solutions to reduce operational costs. Companies responded to COVID-19 by accommodating employees’ concerns and implementing safety measures. Truck drivers noted an increase in positive public perception of truck drivers, but job quality factors worsened due to closed amenities and decreased social interaction. Social media sentiment analysis also illustrated an increase in positive public sentiment towards the trucking industry during COVID-19. The pandemic resulted in multi-level economic, health, and social impacts on the trucking industry, which included economic impacts on companies and economic, social and health impacts on employees within the industry levels. Further research can expand on this study to provide an understanding of the long-term impacts of the pandemic on the trucking industry companies within the industry and segments of the trucking industry workforce.

COVID-19's Influence on Information and Communication Technologies in Long-Term Care: Results From an Online Survey with Long-Term Care Administrators

Background

The prevalence of COVID-19 in the United States led to mandated lockdowns for long-term care (LTC) facilities, resulting in loss of in-person contact with social ties for LTC residents. Though information and communication technologies (ICTs) can be used by LTC residents to support their socioemotional needs, residents must have access to ICTs to use them.

Objective

This study explored ICT access and use in LTC facilities and how LTC facilities adapted to try to enhance social connections for their residents during the COVID-19 pandemic.

Methods

LTC administrators in South Carolina (United States) were invited to complete a web-based survey exploring ICT access and use in LTC facilities and whether access and use changed as a result of the COVID-19 pandemic.

Results

LTC administrators (N=70, 12 nursing homes [NHs], and 58 assisted living facilities [ALFs]) completed the web-based survey. Since March 2020, a total of 53% (37/70) of the LTC facilities have purchased ICTs for residents’ use. ICTs have mainly been used for videoconferencing with family members (31/36, 86%), friends (25/36, 69%), and health care providers (26/36, 72%). NHs were 10.23 times more likely to purchase ICTs for residents’ use during the COVID-19 pandemic than ALFs (odds ratio 11.23, 95% CI 1.12-113.02; P=.04). Benefits of ICT use included residents feeling connected to their family members, friends, and other residents. Barriers to ICT use included staff not having time to assist residents with using the technology, nonfunctional technology, and residents who do not want to share technology.

Conclusions

Our results suggest that over half of the LTC facilities in this study were able to acquire ICTs for their residents to use during the COVID-19 pandemic. Additional research is needed to explore how residents adapted to using the ICTs and whether LTC facilities developed and adopted technology integration plans, which could help them be prepared for future situations that may affect LTC residents’ engagement and communication opportunities, such as another pandemic.

Solutions to the Challenge of Meeting Rural Transportation Needs: Middle-Aged and Older Adults' Perspectives

This study aimed to explore how the aging population in Appalachia manages its transportation and plans for the transition to non-driving and to seek possible solutions to the challenge of meeting rural transportation needs. Four focus groups (N = 38) were conducted, supplemented by a questionnaire, in Appalachian Kentucky. The results showed that few alternative transportation existed except a local paratransit service and informal transportation support. Compared to older adults, middle-aged adults reported a greater willingness to use mobile phones and the Internet to arrange transportation if they were available. Participants also recommended expanding the use of existing transportation in the community - such as church vans - to better meet the aging population's needs. The findings suggest that partnership between government, non-profit, and private sectors is needed, not solely focusing on a tax-dependent solution. Additionally, information and communication technology-based transportation management system would help maximize the use of scare but existing resources in rural areas.

Video Communication With Cognitively Intact Nursing Home Residents: A Scoping Review

Limited research exists examining video communication among cognitively intact nursing home residents to connect with family. This scoping review evaluated existing literature for video communication usage with nursing home residents, family, and nursing homes. A comprehensive search was completed using PubMed and EBSCOhost (including AgeLine, CINAHL, and PsycINFO) between 1972 and 2016 to locate English-language articles. The analysis identified five eligible studies (four involved an intervention, one assessed family views) meeting inclusion criteria. Findings included, seeing family members separated by distance, seeing other parts of their life, and visually monitoring resident's health. Participants described frustration with technology limitations, such as video or audio lag. Current literature does not show a comprehensive assessment of video communication usage for residents, family, and nursing homes. Future studies should address the complexity of the intersection of the person, nursing home, and families in terms of potential benefits and capability of video communication use with residents.

Nucleotide sequence of F(0)-ATPase proteolipid (subunit 9) gene of maize mitochondria

The F(0)-ATPase proteolipid, also referred to as subunit 9 or the dicyclohexylcarbodiimide-binding protein, is encoded by a mitochondrial gene in maize that we have designated atp 9. The clone containing atp 9 was selected for investigation from a mitochondrial DNA library because of its abundant transcript in total maize mitochondrial RNA preparations. Sequence analysis of the clone revealed an open reading frame that was readily identified by its nucleotide homology with the ATPase subunit 9 gene of yeast. As deduced from the nucleotide sequence, the maize ATPase subunit 9 protein contains 74 amino acids with a molecular weight of 7368. Substantial amino acid sequence homology is conserved among maize, yeast, bovine, and Neurospora mitochondrial ATPase subunit 9 proteins, regardless of whether the gene is nuclearly encoded (bovine and Neurospora) or mitochondrially encoded (yeast and maize). RNA transfer blot analysis indicated that the gene sequence is actively transcribed, producing an initial transcript that is large and extensively processed.

Transcription and sequence studies of a 4.3-kbp fragment from a ds-DNA eukaryotic algal virus

A 4.3-kbp portion of the genome from the Chlorella virus, PBCV-1, has been cloned and sequenced. Minimally, five open reading frames (ORFs) were identified on this fragment. Transcriptional analysis indicates that each ORF encodes complex patterns of RNA. The total length of transcribed RNA exceeds that of the ORF indicating either post-transcriptional modification or multiple transcriptional start/stop sites. The sequence TTTTTNT, previously described as the transcriptional stop site for the early genes of vaccinia virus, is also found downstream of each of our ORFs. The regions 5' to each ORF were very A + T-rich (approx 80%) but distinct promoter sequences were not unambiguously identified.

5-Azacytidine-resistant mutants of Chlorella virus IL-3A

Many dsDNA-containing viruses which infect the unicellular, eukaryotic Chlorella-like green alga strain NC64A encode for DNA methyltransferases and DNA site-specific (restriction) endonucleases. We have hypothesized that these endonucleases help degrade host DNA permitting deoxynucleotides to recycle into virus DNA. This hypothesis was tested by isolating deletion mutants of Chlorella virus IL-3A lacking functional genes for the cytosine methyltransferase M.CviJI and the cognate site-specific endonuclease CviJI. The growth and burst sizes of the mutants and parent virus were identical. Also host nuclear and chloroplast DNAs disappeared from infected cells at the same rates. Thus M.CviJI and CviJI activities are not required for IL-3A replication and CviJI activity is not essential for host DNA degradation.

Characterization of viruses infecting a eukaryotic Chlorella-like green alga

Nineteen plaque-forming viruses of the unicellular, eukaryotic Chlorella-like green alga, strain NC64A, were isolated from various geographic regions in the United States and characterized. Like the previously described virus, PBCV-1, all of the new viruses were large polyhedrons, sensitive to chloroform, and contained large dsDNA genomes of ca. 300 kbp. All of the viral DNAs contained 5-methyldeoxycytidine which varied from 0.1 to 47% of the deoxycytidine. In addition, 10 of the viral DNAs contained N6-methyldeoxyadenosine which varied from 8.1 to 37% of the deoxyadenosine. These viruses, along with 11 previously described viruses which replicate in the same Chlorella host, were grouped into 11 classes based on at least one of the following properties: plaque size, reaction with PBCV-1 antiserum, or the nature and abundance of methylated bases in their genomic DNA.

Infection of a Chlorella-like alga with the virus PBCV-1: transcriptional studies

Infection of the unicellular, eukaryotic Chlorella-like green alga NC64A by the large dsDNA containing virus PBCV-1 immediately reduced host RNA synthesis. Chloroplast rRNAs, but not cytosolic rRNAs, were degraded following viral infection. Northern blot analysis utilizing four cloned fragments of PBCV-1 DNA as probes, which represent about 12% of the viral genome, revealed several properties of PBCV-1 transcription: A few viral transcripts were detected within 5 min after infection. Each PBCV-1 DNA clone hybridized to both early and late transcripts which implies that early and late genes are dispersed throughout the viral genome. The transition from early to late transcription occurred between 40 and 60 min after infection coincident with the onset of viral DNA synthesis. Three of the four DNA clones hybridized to transcripts which additively were larger than the corresponding DNA probe. This could reflect RNA processing, presence of overlapping genes, or transcription from both DNA strands. A few, but not all, early transcripts were synthesized in the presence of cycloheximide. This suggests that the virus either carries in its own RNA polymerase or uses a host RNA polymerase for very early viral transcription and that synthesis of additional, later transcripts depends on translation of an early gene product(s).

DNA methylation of viruses infecting a eukaryotic Chlorella-like green alga

The genomic DNAs of the eukaryotic Chlorella-like green alga, strain NC64A, and eleven of its viruses all contain significant levels of 5-methyldeoxycytidine. In addition, the host DNA as well as six of the viral DNAs also contain N6-methyldeoxyadenosine. At least some of the methylated bases in the host reside in different base sequences than the methylated bases in the viruses as shown by differential susceptibility to restriction endonuclease enzymes. This suggests that the viruses encode for DNA methyltransferases with sequence specificities different from that of the host enzyme.

Lytic viruses infecting a Chlorella-like alga

A number of viruses which form plaques on the unicellular, eukaryotic, Chlorella-like green alga, strain NC64A, were isolated from fresh water ponds and rivers in Illinois, North Carolina, and South Carolina. The viruses were large polyhedrons (160 to 190 nm in diameter) and contained dsDNA genomes of ca. 300 kbp. All of the viral DNAs hybridized with DNA from the previously described PBCV-1 virus. However, the viruses, even many of those isolated from the same water sample, could be distinguished from one another by DNA restriction endonuclease digestion. The viruses, including PBCV-1, were grouped into five classes by their resistance to certain DNA restriction endonucleases. Presumably the DNAs in the five classes contain different types or amounts of modified bases.

Ribonucleic Acid and protein metabolism in pea epicotyls : I. The aging process

Aging of actively growing, etiolated pea Pisum sativum L. var Alaska plants was initiated by removing the plumules of plants in the third internode stage, and applying lanolin to the cut apices of otherwise intact plants. During the subsequent 4-day aging period, several degenerative events occurred in this apical 10-millimeter region. Ribosomal RNA and messenger RNA contents declined, polyribosomes disaggregated, and the protein synthesizing capacity of the polysomes decreased.Two-dimensional, silver-stained protein patterns revealed that aging altered the relative amounts of specific cellular proteins accumulated in vivo. In addition, polypeptide patterns generated by cell-free translation of total and polysomal RNA, isolated from unaged and aged tissues, showed major modifications. More than 200 spots could be resolved by two-dimensional gel fluorography of translation products using RNA from fresh tissues. Of these 200 spots, about eight appeared or increased when total RNA from aged tissue was used, and about 58 disappeared or declined. When polysomal RNA from aged tissue was used as template, about 12 spots appeared or increased, whereas about 64 disappeared or decreased. In general, the products which increased after aging were lower molecular weight and those that decreased were higher molecular weight.

Ribonucleic Acid and Protein Metabolism in Pea Epicotyls : II. Response to Wounding in Aged Tissue

Aged pea Pisum sativum L. var Alaska epicotyl tissue was wounded by excising the apical 10 or 20 millimeters and incubating the excised segments upright in buffer. Wounding induced a very rapid formation of polysomes which was accompanied by minor increases in ribosomes, mRNA, and poly(A) and by a doubling of the in vivo protein synthesizing capacity. This increase in protein synthesis in vivo was matched by a similar increase in polypeptide synthesis in vitro in wheat germ reactions primed by polysomes. However, in vitro reactions primed by total and polysomal RNA from wounded tissue were affected much less.Two-dimensional gel patterns of silver-stained proteins accumulated in vivo were almost unchanged, even after 6 hours of wounding, since only two spots decreased in intensity and none increased. In contrast, two-dimensional gel fluorographs of polypeptides generated in vitro by both total RNA and polysomal RNA showed numerous changes within 3 hours of wounding. Of the more than 200 spots visualized by fluorography, 17 decreased and 26 increased when total RNA from wounded tissue was used; 15 decreased and 10 increased when polysomal RNA was used. Those polypeptides that decreased after wounding were generally of lower molecular weight; those which increased were of higher molecular weight.Although wounding must be affecting transcription insofar as different mRNAs must be present to encode different polypeptides, its major effect appears to be on translation, presumably through formation of ribosomes with greater translational efficiency.