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  1. Article ; Online: Salience Network Functional Connectivity Mediates Association Between Social Engagement and Cognition in Non-Demented Older Adults: Exploratory Investigation.

    Pruitt, Patrick J / Damoiseaux, Jessica S / Hampstead, Benjamin M / Peltier, Scott J / Bhaumik, Arijit K / Albin, Roger L / Dodge, Hiroko H

    Journal of Alzheimer's disease reports

    2024  Volume 8, Issue 1, Page(s) 531–542

    Abstract: Background: Social engagement has beneficial effects during cognitive aging. Large-scale cognitive brain network functions are implicated in both social behaviors and cognition.: Objective: We evaluated associations between functional connectivity ( ... ...

    Abstract Background: Social engagement has beneficial effects during cognitive aging. Large-scale cognitive brain network functions are implicated in both social behaviors and cognition.
    Objective: We evaluated associations between functional connectivity (FC) of large-scale brain cognitive networks and social engagement, characterized by self-reported social network size and contact frequency. We subsequently tested large-scale brain network FC as a potential mediator of the beneficial relationship between social engagement and cognitive performance.
    Methods: 112 older adults (70.7±7.3 years, range 54.6-89.7; 84 women) completed the Lubben Social Network Scale 6 (LSNS-6), National Alzheimer's Coordinating Center (NACC) Uniform Data Set 3 (UDS-3) cognitive battery, and resting state fMRI. We completed seed-based correlational analysis in the default mode and salience networks. Significant associations between social engagement scores and cognitive performance, as well as between social engagement and FC of brain networks, informed the construction of mediation models.
    Results: Social engagement was significantly associated with executive function and global cognition, with greater social engagement associated with better cognitive performance. Social engagement was significantly associated with salience network FC, with greater social engagement associated with higher connectivity. Salience network FC partially mediated associations between social engagement and both executive function and global cognition.
    Conclusions: Our results suggest that the salience network is a key mediator of the beneficial relationship between social engagement and cognition in older adults.
    Language English
    Publishing date 2024-03-19
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2542-4823
    ISSN (online) 2542-4823
    DOI 10.3233/ADR-220082
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Lifespan differences in background functional connectivity of core cognitive large-scale brain networks.

    Pruitt, Patrick J / Tang, Lingfei / Hayes, Jessica M / Ofen, Noa / Damoiseaux, Jessica S

    Neuroscience research

    2022  

    Abstract: Large-scale brain networks undergo functional reorganization over the course of the lifespan, with concurrent implications for cognition. Characterizing network connectivity during a task may provide complementary insight into cognitive development and ... ...

    Abstract Large-scale brain networks undergo functional reorganization over the course of the lifespan, with concurrent implications for cognition. Characterizing network connectivity during a task may provide complementary insight into cognitive development and aging, to that provided by resting-state. We assessed network background connectivity, which refers to connectivity that remains after task effects have been regressed out, during a visual memory-encoding task in a lifespan sample. More specifically we assessed the within- and between-network background connectivity of the default mode, salience, and frontoparietal networks. Within-network background connectivity of salience and frontoparietal networks differed between age groups, with late-life adults showing lower connectivity. We did not find an effect of age group in default mode network background connectivity, contrary to previous findings using resting-state. However, default mode between-network background connectivity with salience and frontoparietal networks was greater in mid-life and late-life adults than in younger age groups. Overall, our findings in a lifespan sample are in line with previous observations of age-related network de-differentiation. However, the lack of age effect in default mode network background connectivity suggests that background connectivity indeed represents a complementary measure to resting-state connectivity, providing a differential glance of network connectivity during a particular state.
    Language English
    Publishing date 2022-09-16
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 605842-5
    ISSN 1872-8111 ; 0168-0102 ; 0921-8696
    ISSN (online) 1872-8111
    ISSN 0168-0102 ; 0921-8696
    DOI 10.1016/j.neures.2022.09.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Lower-Resolution Retrieval of Scenes in Older Adults With Subjective Cognitive Decline.

    Ruiz-Rizzo, Adriana L / Pruitt, Patrick J / Finke, Kathrin / Müller, Hermann J / Damoiseaux, Jessica S

    Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists

    2021  Volume 37, Issue 2, Page(s) 408–422

    Abstract: Objective: Scenes with more perceptual detail can help detect subtle memory deficits more than scenes with less detail. Here, we investigated whether older adults with subjective cognitive decline (SCD) show less brain activation and more memory ... ...

    Abstract Objective: Scenes with more perceptual detail can help detect subtle memory deficits more than scenes with less detail. Here, we investigated whether older adults with subjective cognitive decline (SCD) show less brain activation and more memory deficits to scenes with more (vs. scenes with less) perceptual detail compared to controls (CON).
    Method: In 37 healthy older adults (SCD: 16), we measured blood oxygenation level-dependent-functional magnetic resonance imaging during encoding and behavioral performance during retrieval.
    Results: During encoding, higher activation to scenes with more (vs. less) perceptual detail in the parahippocampal place area predicted better memory performance in SCD and CON. During retrieval, superior performance for new scenes with more (vs. less) perceptual detail was significantly more pronounced in CON than inSCD.
    Conclusions: Together, these results suggest a present, but attenuated benefit from perceptual detail for memory retrieval in SCD. Memory complaints in SCD might, thus, refer to a decreased availability of perceptual detail of previously encoded stimuli.
    MeSH term(s) Aged ; Brain/physiology ; Cognitive Dysfunction/psychology ; Humans ; Magnetic Resonance Imaging ; Memory/physiology ; Neuropsychological Tests
    Language English
    Publishing date 2021-08-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632972-x
    ISSN 1873-5843 ; 0887-6177
    ISSN (online) 1873-5843
    ISSN 0887-6177
    DOI 10.1093/arclin/acab061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Age moderation of the association between negative subsequent memory effects and episodic memory performance.

    Pruitt, Patrick J / Tang, Lingfei / Hayes, Jessica M / Ofen, Noa / Damoiseaux, Jessica S

    Aging brain

    2021  Volume 1, Page(s) 100021

    Abstract: Negative subsequent memory effects in functional MRI studies of memory formation have been linked to individual differences in memory performance, yet the effect of age on this association is currently unclear. To provide insight into the brain systems ... ...

    Abstract Negative subsequent memory effects in functional MRI studies of memory formation have been linked to individual differences in memory performance, yet the effect of age on this association is currently unclear. To provide insight into the brain systems related to memory across the lifespan, we examined functional neuroimaging data acquired during episodic memory formation and behavioral performance from a memory recognition task in a sample of 109 participants, including three developmental age groups (8-12, 13-17, 18-25 year-olds) and one additional group of older adults (55-85 year-olds). Young adults showed the highest memory performance and strongest negative subsequent memory effects, while older adults showed reduced negative subsequent memory effects relative to young adults. Across the sample, negative subsequent memory effects were associated with better memory performance, and there was a significant interaction between negative subsequent memory effects and memory performance by age group. Posthoc analyses revealed that this moderation effect was driven by a stronger association between negative subsequent memory effects and memory performance in young adults than children, and that neither children nor older adults showed a significant association. These findings suggest that negative subsequent memory effects may differentially support memory performance across a lifespan trajectory characterized by developmental maturation and support further investigation of this effect in aging.
    Language English
    Publishing date 2021-09-13
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2589-9589
    ISSN (online) 2589-9589
    DOI 10.1016/j.nbas.2021.100021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Sex-specific effects of prenatal undernutrition on resting-state functional connectivity in the human brain at age 68.

    Boots, Amber / Thomason, Moriah E / Espinoza-Heredia, Claudia / Pruitt, Patrick J / Damoiseaux, Jessica S / Roseboom, Tessa J / de Rooij, Susanne R

    Neurobiology of aging

    2022  Volume 112, Page(s) 129–138

    Abstract: Prenatal nutrition may significantly impact brain aging. Results from the Dutch Famine Birth Cohort indicated that prenatal undernutrition is negatively associated with cognition, brain volumes, perfusion and structural brain aging in late life, ... ...

    Abstract Prenatal nutrition may significantly impact brain aging. Results from the Dutch Famine Birth Cohort indicated that prenatal undernutrition is negatively associated with cognition, brain volumes, perfusion and structural brain aging in late life, predominantly in men. This study investigates the association between prenatal undernutrition and late-life functional brain network connectivity. In an exploratory resting-state functional magnetic resonance imaging study of 112 participants from the Dutch Famine Birth Cohort, we investigated whether the within- and between-network functional connectivity of the default mode network, salience network and central executive network differ at age 68 in men (N = 49) and women (N = 63) either exposed or unexposed to undernutrition in early gestation. Additionally, we explored sex-specific effects. Compared to unexposed participants, exposed participants revealed multiple clusters of different functional connectivity within and between the three networks studied. Sex-specific analyses suggested a pattern of network desegregation fitting with brain aging in men and a more diffuse pattern of group differences in women. This study demonstrates that associations between prenatal undernutrition and brain network functional connectivity extend late into life.
    MeSH term(s) Aged ; Aging ; Brain/pathology ; Brain Mapping ; Famine ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Malnutrition ; Nerve Net ; Neural Pathways/diagnostic imaging ; Pregnancy
    Language English
    Publishing date 2022-01-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 604505-4
    ISSN 1558-1497 ; 0197-4580
    ISSN (online) 1558-1497
    ISSN 0197-4580
    DOI 10.1016/j.neurobiolaging.2022.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Internet-Based Conversational Engagement Randomized Controlled Clinical Trial (I-CONECT) Among Socially Isolated Adults 75+ Years Old With Normal Cognition or Mild Cognitive Impairment: Topline Results.

    Dodge, Hiroko H / Yu, Kexin / Wu, Chao-Yi / Pruitt, Patrick J / Asgari, Meysam / Kaye, Jeffrey A / Hampstead, Benjamin M / Struble, Laura / Potempa, Kathleen / Lichtenberg, Peter / Croff, Raina / Albin, Roger L / Silbert, Lisa C

    The Gerontologist

    2023  Volume 64, Issue 4

    Abstract: Background and objectives: Social isolation is a risk factor for cognitive decline and dementia. We conducted a randomized controlled clinical trial (RCT) of enhanced social interactions, hypothesizing that conversational interactions can stimulate ... ...

    Abstract Background and objectives: Social isolation is a risk factor for cognitive decline and dementia. We conducted a randomized controlled clinical trial (RCT) of enhanced social interactions, hypothesizing that conversational interactions can stimulate brain functions among socially isolated older adults without dementia. We report topline results of this multisite RCT (Internet-based conversational engagement clinical trial [I-CONECT]; NCT02871921).
    Research design and methods: The experimental group received cognitively stimulating semistructured conversations with trained interviewers via internet/webcam 4 times per week for 6 months (induction) and twice per week for an additional 6 months (maintenance). The experimental and control groups both received weekly 10 minutes telephone check-ins. Protocol modifications were required due to the coronavirus disease 2019 pandemic.
    Results: A total of 186 participants were randomized. After the induction period, the experimental group had higher global cognitive test scores (Montreal Cognitive Assessment [primary outcome]; 1.75 points [p = .03]) compared with the control group. After induction, experimental group participants with normal cognition had higher language-based executive function (semantic fluency test [secondary outcome]; 2.56 points [p = .03]). At the end of the maintenance period, the experimental group of mild cognitive impairment subjects had higher encoding function (Craft Story immediate recall test [secondary outcome]; 2.19 points [p = .04]). Measure of emotional well-being improved in both control and experimental groups. Resting-state functional magnetic resonance imaging showed that the experimental group had increased connectivity within the dorsal attention network relative to the control group (p = .02), but the sample size was limited.
    Discussion and implications: Providing frequent stimulating conversational interactions via the internet could be an effective home-based dementia risk-reduction strategy against social isolation and cognitive decline.
    Clinical trials registration number: NCT02871921.
    MeSH term(s) Humans ; Aged ; Cognitive Dysfunction/psychology ; Cognition ; Executive Function ; Dementia
    Language English
    Publishing date 2023-11-07
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 216760-8
    ISSN 1758-5341 ; 0016-9013
    ISSN (online) 1758-5341
    ISSN 0016-9013
    DOI 10.1093/geront/gnad147
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  7. Article ; Online: Network functional connectivity underlying dissociable cognitive and affective components of empathy in adolescence.

    Winters, Drew E / Pruitt, Patrick J / Fukui, Sadaaki / Cyders, Melissa A / Pierce, Barbara J / Lay, Kathy / Damoiseaux, Jessica S

    Neuropsychologia

    2021  Volume 156, Page(s) 107832

    Abstract: Empathy, the capacity to understand and share others' emotions, can occur through cognitive and affective components. These components are different conceptually, behaviorally, and in the brain. Neuroimaging task-based research in adolescents and adults ... ...

    Abstract Empathy, the capacity to understand and share others' emotions, can occur through cognitive and affective components. These components are different conceptually, behaviorally, and in the brain. Neuroimaging task-based research in adolescents and adults document that cognitive empathy associates with the default mode and frontoparietal networks, whereas regions of the salience network underlie affective empathy. However, cognitive empathy is slower to mature than affective empathy and the extant literature reveals considerable developmental differences between adolescent and adult brains within and between these three networks. We extend previous work by examining empathy's association with functional connectivity within and between these networks in adolescents. Participants (n = 84, aged 13-17; 46.4% female) underwent resting state fMRI and completed self-report measures (Interpersonal Reactivity Index) for empathy as part of a larger Nathan-Kline Institute study. Regression analyses revealed adolescents reporting higher cognitive empathy had higher within DMN connectivity. Post hoc analysis revealed cognitive empathy's association within DMN connectivity is independent of affective empathy or empathy in general; and this association is driven by positive pairwise connections between the bilateral angular gyri and medial prefrontal cortex. These results suggest introspective cognitive processes related to the DMN are specifically important for cognitive empathy in adolescence.
    MeSH term(s) Adolescent ; Adult ; Brain/diagnostic imaging ; Brain Mapping ; Cognition ; Empathy ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Neural Pathways/diagnostic imaging
    Language English
    Publishing date 2021-03-19
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 207151-4
    ISSN 1873-3514 ; 0028-3932
    ISSN (online) 1873-3514
    ISSN 0028-3932
    DOI 10.1016/j.neuropsychologia.2021.107832
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  8. Article ; Online: Cognitive and Affective Empathy as Indirect Paths Between Heterogeneous Depression Symptoms on Default Mode and Salience Network Connectivity in Adolescents.

    Winters, Drew E / Pruitt, Patrick J / Gambin, Malgorzata / Fukui, Sadaaki / Cyders, Melissa A / Pierce, Barbara J / Lay, Kathy / Damoiseaux, Jessica S

    Child psychiatry and human development

    2021  Volume 54, Issue 1, Page(s) 213–222

    Abstract: Depression amongst adolescents is a prevalent disorder consisting of heterogeneous emotional and functional symptoms-often involving impairments in social domains such as empathy. Cognitive and affective components of empathy as well as their associated ... ...

    Abstract Depression amongst adolescents is a prevalent disorder consisting of heterogeneous emotional and functional symptoms-often involving impairments in social domains such as empathy. Cognitive and affective components of empathy as well as their associated neural networks (default mode network for cognitive empathy and salience network for affective empathy) are affected by depression. Depression commonly onsets during adolescence, a critical period for brain development underlying empathy. However, the available research in this area conceptualizes depression as a homogenous construct, and thereby miss to represent the full spectrum of symptoms. The present study aims to extend previous literature by testing whether cognitive and affective empathy indirectly account for associations between brain network connectivity and heterogeneous depression symptoms in adolescents. Heterogeneous functional and emotional symptoms of depression were measured using the child depression inventory. Our results indicate that cognitive empathy mediates the association between default mode network functional connectivity and emotional symptoms of depression. More specifically, that adolescents with a stronger positive association between the default mode network and cognitive empathy show lower emotional depression symptoms. This finding highlights the importance of cognitive empathy in the relationship between brain function and depression symptoms, which may be an important consideration for existing models of depression in adolescents.
    MeSH term(s) Child ; Humans ; Adolescent ; Empathy ; Depression/diagnostic imaging ; Magnetic Resonance Imaging ; Emotions ; Cognition ; Brain/diagnostic imaging ; Brain Mapping
    Language English
    Publishing date 2021-09-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 223895-0
    ISSN 1573-3327 ; 0009-398X
    ISSN (online) 1573-3327
    ISSN 0009-398X
    DOI 10.1007/s10578-021-01242-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Effects of physical activities on dementia-related biomarkers: A systematic review of randomized controlled trials.

    Moniruzzaman, Mohammad / Kadota, Aya / Akash, Maksudul Shadat / Pruitt, Patrick J / Miura, Katsuyuki / Albin, Roger / Dodge, Hiroko H

    Alzheimer's & dementia (New York, N. Y.)

    2021  Volume 6, Issue 1, Page(s) e12109

    Abstract: Introduction: Physical activities (PA) may lead to improved cognition in mild cognitive impairment (MCI), Alzheimer's disease (AD), and dementia. The mechanisms mediating potential PA effects are unknown. Assessment of PA effects on relevant biomarkers ... ...

    Abstract Introduction: Physical activities (PA) may lead to improved cognition in mild cognitive impairment (MCI), Alzheimer's disease (AD), and dementia. The mechanisms mediating potential PA effects are unknown. Assessment of PA effects on relevant biomarkers may provide insights into mechanisms underlying potential PA effects on cognition.
    Methods: We systematically reviewed randomized controlled trials (RCTs) that studied PA effects on biomarkers in MCI, AD, and dementia populations. We examined whether biological mechanisms were hypothesized to explain associations among PA, biomarkers, and cognitive functions. We used the PubMed database and searched for RCTs with PA until October 31, 2019.
    Results: Of 653 studies examining changes in biomarkers in PA trials, 18 studies met inclusion criteria for the present review. Some studies found favorable effects of PA on neurotrophic and inflammatory biomarkers. AD pathological markers were rarely investigated, with inconclusive results. Most studies were relatively small in sample size, of limited duration, and not all studies compared the changes in biomarkers between the control and experimental groups.
    Discussion: There is only limited use of potentially informative biomarkers in PA trials for MCI, AD, and dementia. Most studies did not examine the role of biomarkers to study associations between PA and cognitive functions in their analyses. Several potential biomarkers remain uninvestigated. Careful use of biomarkers may clarify mechanisms underlying PA effects on cognition. Our review serves as a useful resource for developing future PA RCTs aimed at improving cognitive functions in MCI, AD, and dementias.
    Language English
    Publishing date 2021-01-20
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2832891-7
    ISSN 2352-8737 ; 2352-8737
    ISSN (online) 2352-8737
    ISSN 2352-8737
    DOI 10.1002/trc2.12109
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  10. Article: Differential Functional Connectivity in Anterior and Posterior Hippocampus Supporting the Development of Memory Formation.

    Tang, Lingfei / Pruitt, Patrick J / Yu, Qijing / Homayouni, Roya / Daugherty, Ana M / Damoiseaux, Jessica S / Ofen, Noa

    Frontiers in human neuroscience

    2020  Volume 14, Page(s) 204

    Abstract: Neuroimaging evidence suggests that the development of the hippocampus, a brain structure critical for memory function, contributes to the improvements of episodic memory between middle childhood to adulthood. However, investigations on age differences ... ...

    Abstract Neuroimaging evidence suggests that the development of the hippocampus, a brain structure critical for memory function, contributes to the improvements of episodic memory between middle childhood to adulthood. However, investigations on age differences in hippocampal activation and functional connectivity and their contributions to the development of memory have yielded mixed results. Given the known structural and functional heterogeneity along the long axis of the hippocampus, we investigated age differences in the activation and functional connectivity in hippocampal subregions with a cross-sectional sample of 96 participants ages 8-25 years. We found that anterior and posterior hippocampus supported memory formation, and there was overall stability in memory-related hippocampal activation with age. Without taking account of memory outcome, direct contrast between subregions showed higher functional connectivity of anterior, compared to the posterior hippocampus, with regions in the inferior frontal and lateral temporal lobes, and higher functional connectivity of posterior, compared to the anterior hippocampus, with regions in the medial and superior frontal, inferior parietal, and occipital lobes. A direct contrast between the memory-related connectivity patterns of anterior and posterior hippocampus identified a region in the medial frontal cortex, with which anterior and posterior hippocampus was differentially functionally connected. Finally, we identified age differences in memory-related differential hippocampal functional connectivity with several frontal and visual/sensory cortices, underscoring the importance of examining age differences in the patterns of hippocampal connectivity. Moreover, the specific patterns of differential anterior and posterior functional connectivity indicate an increase in the functional specialization along the long axis of the hippocampus and a dynamic shift in hippocampal connectivity patterns that supports memory development.
    Language English
    Publishing date 2020-06-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2425477-0
    ISSN 1662-5161
    ISSN 1662-5161
    DOI 10.3389/fnhum.2020.00204
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