1
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Farmer AL, Febo M, Wilkes BJ, Lewis MH. Environmental enrichment reduces restricted repetitive behavior by altering gray matter microstructure. PLoS One 2024; 19:e0307290. [PMID: 39083450 PMCID: PMC11290697 DOI: 10.1371/journal.pone.0307290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024] Open
Abstract
Restricted, repetitive behaviors are common symptoms in neurodevelopmental disorders including autism spectrum disorder. Despite being associated with poor developmental outcomes, repetitive behaviors remain poorly understood and have limited treatment options. Environmental enrichment attenuates the development of repetitive behaviors, but the exact mechanisms remain obscure. Using the C58 mouse model of repetitive behavior, we performed diffusion tensor imaging to examine microstructural alterations associated with the development of repetitive behavior and its attenuation by environmental enrichment. The C57BL/6 mouse strain, which displays little or no repetitive behavior, was used as a control group. We observed widespread differences in diffusion metrics between C58 mice and C57BL/6 mice. In juvenile C58 mice, repetitive motor behavior displayed strong negative correlations with fractional anisotropy in multiple gray matter regions, whereas in young adult C58 mice, high repetitive motor behavior was most strongly associated with lower fractional anisotropy and higher radial diffusivity in the striatum. Environmental enrichment increased fractional anisotropy and axial diffusivity throughout gray matter regions in the brains of juvenile C58 mice and overlapped predominantly with cerebellar and sensory regions associated with repetitive behavior. Our results suggest environmental enrichment reduces repetitive behavior development by altering gray matter microstructure in the cerebellum, medial entorhinal cortex, and sensory processing regions in juvenile C58 mice. Under standard laboratory conditions, early pathology in these regions appears to contribute to later striatal and white matter dysfunction in adult C58 mice. Future studies should examine the role these regions play in the development of repetitive behavior and the relationship between sensory processing and cerebellar deficits and repetitive behavior.
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Affiliation(s)
- Anna L. Farmer
- Department of Psychology, University of Florida, Gainesville, Florida, United States of America
| | - Marcelo Febo
- Department of Psychiatry, University of Florida, Gainesville, Florida, United States of America
| | - Bradley J. Wilkes
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida, United States of America
| | - Mark H. Lewis
- Department of Psychology, University of Florida, Gainesville, Florida, United States of America
- Department of Psychiatry, University of Florida, Gainesville, Florida, United States of America
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2
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Biskupiak Z, Ha VV, Rohaj A, Bulaj G. Digital Therapeutics for Improving Effectiveness of Pharmaceutical Drugs and Biological Products: Preclinical and Clinical Studies Supporting Development of Drug + Digital Combination Therapies for Chronic Diseases. J Clin Med 2024; 13:403. [PMID: 38256537 PMCID: PMC10816409 DOI: 10.3390/jcm13020403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Limitations of pharmaceutical drugs and biologics for chronic diseases (e.g., medication non-adherence, adverse effects, toxicity, or inadequate efficacy) can be mitigated by mobile medical apps, known as digital therapeutics (DTx). Authorization of adjunct DTx by the US Food and Drug Administration and draft guidelines on "prescription drug use-related software" illustrate opportunities to create drug + digital combination therapies, ultimately leading towards drug-device combination products (DTx has a status of medical devices). Digital interventions (mobile, web-based, virtual reality, and video game applications) demonstrate clinically meaningful benefits for people living with Alzheimer's disease, dementia, rheumatoid arthritis, cancer, chronic pain, epilepsy, depression, and anxiety. In the respective animal disease models, preclinical studies on environmental enrichment and other non-pharmacological modalities (physical activity, social interactions, learning, and music) as surrogates for DTx "active ingredients" also show improved outcomes. In this narrative review, we discuss how drug + digital combination therapies can impact translational research, drug discovery and development, generic drug repurposing, and gene therapies. Market-driven incentives to create drug-device combination products are illustrated by Humira® (adalimumab) facing a "patent-cliff" competition with cheaper and more effective biosimilars seamlessly integrated with DTx. In conclusion, pharma and biotech companies, patients, and healthcare professionals will benefit from accelerating integration of digital interventions with pharmacotherapies.
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Affiliation(s)
- Zack Biskupiak
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
| | - Victor Vinh Ha
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
| | - Aarushi Rohaj
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
- The Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, UT 84113, USA
| | - Grzegorz Bulaj
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
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3
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Gelfo F, Petrosini L, Mandolesi L, Landolfo E, Caruso G, Balsamo F, Bonarota S, Bozzali M, Caltagirone C, Serra L. Land/Water Aerobic Activities: Two Sides of the Same Coin. A Comparative Analysis on the Effects in Cognition of Alzheimer's Disease. J Alzheimers Dis 2024; 98:1181-1197. [PMID: 38552114 DOI: 10.3233/jad-231279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Evidence in the literature indicates that aerobic physical activity may have a protective role in aging pathologies. However, it has not been clarified whether different types of aerobic exercise produce different effects. In particular, these potential differences have not been explored in patients with Alzheimer's disease (AD). The present narrative review has the specific aim of evaluating whether land (walking/running) and water (swimming) aerobic activities exert different effects on cognitive functions and neural correlates in AD patients. In particular, the investigation is carried out by comparing the evidence provided from studies on AD animal models and on patients. On the whole, we ascertained that both human and animal studies documented beneficial effects of land and water aerobic exercise on cognition in AD. Also, the modulation of numerous biological processes is documented in association with structural modifications. Remarkably, we found that aerobic activity appears to improve cognition per se, independently from the specific kind of exercise performed. Aerobic exercise promotes brain functioning through the secretion of molecular factors from skeletal muscles and liver. These molecular factors stimulate neuroplasticity, reduce neuroinflammation, and inhibit neurodegenerative processes leading to amyloid-β accumulation. Additionally, aerobic exercise improves mitochondrial activity, reducing oxidative stress and enhancing ATP production. Aerobic activities protect against AD, but implementing exercise protocols for patients is challenging. We suggest that health policies and specialized institutions should direct increasing attention on aerobic activity as lifestyle modifiable factor for successful aging and age-related conditions.
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Affiliation(s)
- Francesca Gelfo
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Rome, Italy
| | | | - Laura Mandolesi
- Department of Humanities, Federico II University of Naples, Naples, Italy
| | | | | | - Francesca Balsamo
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Rome, Italy
| | - Sabrina Bonarota
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Marco Bozzali
- Department of Neuroscience 'Rita Levi Montalcini', University of Torino, Turin, Italy
- Department of Neuroscience, Brighton and Sussex Medical School, University of Sussex, Brighton, UK
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4
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Fuentes-Verdugo E, López-Tolsa GE, Pascual R, Pellón R. Environmental enrichment accelerates the acquisition of schedule-induced drinking in rats. Behav Processes 2023; 212:104934. [PMID: 37659684 DOI: 10.1016/j.beproc.2023.104934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 08/10/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
Environmental enrichment (EE) provides an improvement in the housing conditions of experimental animals, such as laboratory rats, with greater physical and social stimulation through toys and company in the home cages. Its use is known to influence performance of experimental protocols, but these effects have not been well determined in the schedule-induced drinking (SID) procedure. The main goal of this study was to investigate the effects of EE on the acquisition of SID in 24 12-week-old male Wistar rats, divided into two groups, a group with EE housed with toys and companions, and a group without enrichment in individual housing conditions without toys (social isolation and no environmental enrichment, INEE). A total of 25 sessions, under a fixed time 30 s food reinforcement schedule and with access to water in the experimental chambers were carried out. Sessions lasted 30 min. The results showed that the EE group developed faster the excessive drinking pattern of SID, and drank to higher levels, than the INEE group. The greater development of SID in the EE group contradicts the view of schedule-induced behavior as linked to stress reduction and better suits with the conception of induction related to positive reinforcement.
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Affiliation(s)
- Esmeralda Fuentes-Verdugo
- Animal Learning and Behavior Laboratory, School of Psychology, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Gabriela E López-Tolsa
- Animal Learning and Behavior Laboratory, School of Psychology, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Raquel Pascual
- Animal Learning and Behavior Laboratory, School of Psychology, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Ricardo Pellón
- Animal Learning and Behavior Laboratory, School of Psychology, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain.
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5
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Farmer AL, Lewis MH. Reduction of restricted repetitive behavior by environmental enrichment: Potential neurobiological mechanisms. Neurosci Biobehav Rev 2023; 152:105291. [PMID: 37353046 DOI: 10.1016/j.neubiorev.2023.105291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/04/2023] [Accepted: 06/19/2023] [Indexed: 06/25/2023]
Abstract
Restricted repetitive behaviors (RRB) are one of two diagnostic criteria for autism spectrum disorder and common in other neurodevelopmental and psychiatric disorders. The term restricted repetitive behavior refers to a wide variety of inflexible patterns of behavior including stereotypy, self-injury, restricted interests, insistence on sameness, and ritualistic and compulsive behavior. However, despite their prevalence in clinical populations, their underlying causes remain poorly understood hampering the development of effective treatments. Intriguingly, numerous animal studies have demonstrated that these behaviors are reduced by rearing in enriched environments (EE). Understanding the processes responsible for the attenuation of repetitive behaviors by EE should offer insights into potential therapeutic approaches, as well as shed light on the underlying neurobiology of repetitive behaviors. This review summarizes the current knowledge of the relationship between EE and RRB and discusses potential mechanisms for EE's attenuation of RRB based on the broader EE literature. Existing gaps in the literature and future directions are also discussed.
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Affiliation(s)
- Anna L Farmer
- Department of Psychology, University of Florida, Gainesville, FL, USA.
| | - Mark H Lewis
- Department of Psychology, University of Florida, Gainesville, FL, USA; Department of Psychiatry, University of Florida, Gainesville, FL, USA
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Kobiec T, Mardaraz C, Toro-Urrego N, Kölliker-Frers R, Capani F, Otero-Losada M. Neuroprotection in metabolic syndrome by environmental enrichment. A lifespan perspective. Front Neurosci 2023; 17:1214468. [PMID: 37638319 PMCID: PMC10447983 DOI: 10.3389/fnins.2023.1214468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/17/2023] [Indexed: 08/29/2023] Open
Abstract
Metabolic syndrome (MetS) is defined by the concurrence of different metabolic conditions: obesity, hypertension, dyslipidemia, and hyperglycemia. Its incidence has been increasingly rising over the past decades and has become a global health problem. MetS has deleterious consequences on the central nervous system (CNS) and neurological development. MetS can last several years or be lifelong, affecting the CNS in different ways and treatments can help manage condition, though there is no known cure. The early childhood years are extremely important in neurodevelopment, which extends beyond, encompassing a lifetime. Neuroplastic changes take place all life through - childhood, adolescence, adulthood, and old age - are highly sensitive to environmental input. Environmental factors have an important role in the etiopathogenesis and treatment of MetS, so environmental enrichment (EE) stands as a promising non-invasive therapeutic approach. While the EE paradigm has been designed for animal housing, its principles can be and actually are applied in cognitive, sensory, social, and physical stimulation programs for humans. Here, we briefly review the central milestones in neurodevelopment at each life stage, along with the research studies carried out on how MetS affects neurodevelopment at each life stage and the contributions that EE models can provide to improve health over the lifespan.
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Affiliation(s)
- Tamara Kobiec
- Facultad de Psicología, Centro de Investigaciones en Psicología y Psicopedagogía, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Claudia Mardaraz
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Nicolás Toro-Urrego
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Rodolfo Kölliker-Frers
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Francisco Capani
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Facultad de Ciencias de la Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Matilde Otero-Losada
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
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Clark FE, Greggor AL, Montgomery SH, Plotnik JM. The endangered brain: actively preserving ex-situ animal behaviour and cognition will benefit in-situ conservation. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230707. [PMID: 37650055 PMCID: PMC10465207 DOI: 10.1098/rsos.230707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/15/2023] [Indexed: 09/01/2023]
Abstract
Endangered species have small, unsustainable population sizes that are geographically or genetically restricted. Ex-situ conservation programmes are therefore faced with the challenge of breeding sufficiently sized, genetically diverse populations earmarked for reintroduction that have the behavioural skills to survive and breed in the wild. Yet, maintaining historically beneficial behaviours may be insufficient, as research continues to suggest that certain cognitive-behavioural skills and flexibility are necessary to cope with human-induced rapid environmental change (HIREC). This paper begins by reviewing interdisciplinary studies on the 'captivity effect' in laboratory, farmed, domesticated and feral vertebrates and finds that captivity imposes rapid yet often reversible changes to the brain, cognition and behaviour. However, research on this effect in ex-situ conservation sites is lacking. This paper reveals an apparent mismatch between ex-situ enrichment aims and the cognitive-behavioural skills possessed by animals currently coping with HIREC. After synthesizing literature across neuroscience, behavioural biology, comparative cognition and field conservation, it seems that ex-situ endangered species deemed for reintroduction may have better chances of coping with HIREC if their natural cognition and behavioural repertoires are actively preserved. Evaluating the effects of environmental challenges rather than captivity per se is recommended, in addition to using targeted cognitive enrichment.
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Affiliation(s)
- Fay E. Clark
- School of Psychological Science, University of Bristol, Bristol, UK
| | | | | | - Joshua M. Plotnik
- Department of Psychology, Hunter College, City University of New York, New York, NY, USA
- Department of Psychology, The Graduate Center, City University of New York, New York, NY, USA
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8
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Ferreira de Sá N, Camarini R, Suchecki D. One day away from mum has lifelong consequences on brain and behaviour. Neuroscience 2023:S0306-4522(23)00276-2. [PMID: 37352967 DOI: 10.1016/j.neuroscience.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/08/2023] [Accepted: 06/14/2023] [Indexed: 06/25/2023]
Abstract
This chapter presents a brief overview of attachment theory and discusses the importance of the neonatal period in shaping an individual's physiological and behavioural responses to stress later in life, with a focus on the role of the parent-infant relationship, particularly in rodents. In rodents, the role of maternal behaviours goes far beyond nutrition, thermoregulation and excretion, acting as hidden regulators of the pup's physiology and development. In this review, we will discuss the inhibitory role of specific maternal behaviours on the ACTH and corticosterone (CORT) stress response. The interest of our group to explore the long-term consequences of maternal deprivation for 24 h (DEP) at different ages (3 days and 11 days) in rats was sparked by its opposite effects on ACTH and CORT levels. In early adulthood, DEP3 animals (males and females alike) show greater negative impact on affective behaviours and stress related parameters than DEP11, indicating that the latter is more resilient in tests of anxiety-like behaviour. These findings create an opportunity to explore the neurobiological underpinnings of vulnerability and resilience to stress-related disorders. The chapter also provides a brief historical overview and highlights the relevance of attachment theory, and how DEP helps to understand the effects of childhood parental loss as a risk factor for depression, schizophrenia, and PTSD in both childhood and adulthood. Furthermore, we present the concept of environmental enrichment (EE), its effects on stress responses and related behavioural changes and its benefits for rats previously subjected to DEP, along with the clinical implications of DEP and EE.
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Affiliation(s)
- Natália Ferreira de Sá
- Department of Psychobiology - Escola Paulista de Medicina, Universidade Federal de São Paulo
| | - Rosana Camarini
- Department of Pharmacology - Instituto de Ciências Biomédicas, Universidade de São Paulo
| | - Deborah Suchecki
- Department of Psychobiology - Escola Paulista de Medicina, Universidade Federal de São Paulo.
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9
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Landolfo E, Cutuli D, Decandia D, Balsamo F, Petrosini L, Gelfo F. Environmental Enrichment Protects against Neurotoxic Effects of Lipopolysaccharide: A Comprehensive Overview. Int J Mol Sci 2023; 24:ijms24065404. [PMID: 36982478 PMCID: PMC10049264 DOI: 10.3390/ijms24065404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Neuroinflammation is a pathophysiological condition associated with damage to the nervous system. Maternal immune activation and early immune activation have adverse effects on the development of the nervous system and cognitive functions. Neuroinflammation during adulthood leads to neurodegenerative diseases. Lipopolysaccharide (LPS) is used in preclinical research to mimic neurotoxic effects leading to systemic inflammation. Environmental enrichment (EE) has been reported to cause a wide range of beneficial changes in the brain. Based on the above, the purpose of the present review is to describe the effects of exposure to EE paradigms in counteracting LPS-induced neuroinflammation throughout the lifespan. Up to October 2022, a methodical search of studies in the literature, using the PubMed and Scopus databases, was performed, focusing on exposure to LPS, as an inflammatory mediator, and to EE paradigms in preclinical murine models. On the basis of the inclusion criteria, 22 articles were considered and analyzed in the present review. EE exerts sex- and age-dependent neuroprotective and therapeutic effects in animals exposed to the neurotoxic action of LPS. EE’s beneficial effects are present throughout the various ages of life. A healthy lifestyle and stimulating environments are essential to counteract the damages induced by neurotoxic exposure to LPS.
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Affiliation(s)
- Eugenia Landolfo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Debora Cutuli
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Davide Decandia
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Francesca Balsamo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy
| | - Laura Petrosini
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Francesca Gelfo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy
- Correspondence:
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DOĞRUER N, GÖKKAYA F, VOLKAN E, GÜLEÇ M. Predictors of Psychological Resilience: Childhood Trauma Experiences and Forgiveness. PSIKIYATRIDE GUNCEL YAKLASIMLAR - CURRENT APPROACHES IN PSYCHIATRY 2022. [DOI: 10.18863/pgy.1160408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Psychological resilience enables the person to come out of this situation in a strong way without being harmed after traumatic events. In our study, the relationship between experiencing childhood traumas, types of forgiveness and psychological resilience was examined. In addition, it was also investigated how childhood traumatic experiences and types of forgiveness (forgiving oneself, forgiving the situation, forgiving others) predict psychological resilience. In this study, which was conducted with the relational screening model, the relationships between the dependent variable “Psychological Resilience” and the independent variables “Childhood Traumas” and “Forgiveness” were examined by multiple linear regression analysis Enter method. Data were collected from a total of 366 participants, 236 of whom were women (64.5%) and 130 (35.5%) were men, living in the province of Istanbul. The Personal Information Form, Childhood Trauma Scale [CTS], Adult Resilience Scale [PDS] and Heartland Forgiveness Scale [HAS] were applied to the individuals in the sample. In the study, the relationships between the variables mentioned first were examined, the relationship was determined, and according to the results of the multiple linear regression analysis, it was determined that childhood traumas, self-forgiveness and forgiveness of the situation predicted psychological resilience, while forgiveness of others had no predictive effect. In the study, it was concluded that childhood trauma experiences negatively predicted psychological resilience, while self-forgiveness and forgiving the situation variables predicted it positively. It is thought that it is very important to study self-forgiveness, especially when working with childhood traumas in psychological trauma-based interventions and psychotherapy processes.
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Serra L, Petrosini L, Mandolesi L, Bonarota S, Balsamo F, Bozzali M, Caltagirone C, Gelfo F. Walking, Running, Swimming: An Analysis of the Effects of Land and Water Aerobic Exercises on Cognitive Functions and Neural Substrates. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16310. [PMID: 36498383 PMCID: PMC9740550 DOI: 10.3390/ijerph192316310] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
In the brain and cognitive reserves framework, aerobic exercise is considered as a protective lifestyle factor able to induce positive effects on both brain structure and function. However, specific aspects of such a beneficial effect still need to be completely clarified. To this aim, the present narrative review focused on the potential brain/cognitive/neural reserve-construction mechanisms triggered by different aerobic exercise types (land activities; such as walking or running; vs. water activities; such as swimming), by considering human and animal studies on healthy subjects over the entire lifespan. The literature search was conducted in PubMed database. The studies analyzed here indicated that all the considered kinds of activities exert a beneficial effect on cognitive/behavioral functions and on the underlying brain neurobiological processes. In particular, the main effects observed involve the cognitive domains of memory and executive functions. These effects appear related to structural and functional changes mainly involving the fronto-hippocampal axis. The present review supports the requirement of further studies that investigate more specifically and systematically the effects of each type of aerobic activity, as a basis to plan more effective and personalized interventions on individuals as well as prevention and healthy promotion policies for the general population.
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Affiliation(s)
- Laura Serra
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
| | | | - Laura Mandolesi
- Department of Humanities, Federico II University of Naples, 80138 Naples, Italy
| | - Sabrina Bonarota
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
- Department of Systems Medicine, Tor Vergata University of Rome, 00133 Rome, Italy
| | - Francesca Balsamo
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, 00193 Rome, Italy
| | - Marco Bozzali
- Department of Neuroscience ‘Rita Levi Montalcini’, University of Torino, 10126 Turin, Italy
- Department of Neuroscience, Brighton & Sussex Medical School, University of Sussex, Brighton BN1 9RY, UK
| | | | - Francesca Gelfo
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, 00193 Rome, Italy
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12
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Leisman G. On the Application of Developmental Cognitive Neuroscience in Educational Environments. Brain Sci 2022; 12:1501. [PMID: 36358427 PMCID: PMC9688360 DOI: 10.3390/brainsci12111501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 09/29/2023] Open
Abstract
The paper overviews components of neurologic processing efficiencies to develop innovative methodologies and thinking to school-based applications and changes in educational leadership based on sound findings in the cognitive neurosciences applied to schools and learners. Systems science can allow us to better manage classroom-based learning and instruction on the basis of relatively easily evaluated efficiencies or inefficiencies and optimization instead of simply examining achievement. "Medicalizing" the learning process with concepts such as "learning disability" or employing grading methods such as pass-fail does little to aid in understanding the processes that learners employ to acquire, integrate, remember, and apply information learned. The paper endeavors to overview and provided reference to tools that can be employed that allow a better focus on nervous system-based strategic approaches to classroom learning.
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Affiliation(s)
- Gerry Leisman
- Movement and Cognition Laboratory, Department of Physical Therapy, University of Haifa, Haifa 3498838, Israel; or
- Department of Neurology, Universidad de Ciencias Médicas de la Habana, Havana 11300, Cuba
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13
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Améndola L, Weary D, Zobel G. Effects of personality on assessments of anxiety and cognition. Neurosci Biobehav Rev 2022; 141:104827. [PMID: 35970418 DOI: 10.1016/j.neubiorev.2022.104827] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/10/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022]
Abstract
Individual variation in responses to commonly used tests of anxiety and spatial memory is often reported. While this variation is frequently considered to be 'noise', evidence suggests that it is, at least partially, related to consistent individual differences in behavioral responses (i.e., personality). The same tests used to assess anxiety are often used to profile personality traits, but personality differences are rarely considered when testing treatment differences in anxiety. Focusing on the rat literature, we describe fundamental principles involved in anxiety and spatial memory tests and we discuss how personality differences and housing conditions can influence behavioral responses in these tests. We propose that an opportunity exists to increase stress resiliency in environmentally sensitive individuals by providing environmental enrichment. We conclude by discussing different approaches to incorporating personality measures into the design and analysis of future studies; given the potential that variation masks research outcomes, we suggest that a strategy which considers the individual and its housing can contribute to improving research reproducibility.
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Affiliation(s)
- Lucia Améndola
- Animal Welfare Program, University of British Columbia, Canada.
| | - Daniel Weary
- Animal Welfare Program, University of British Columbia, Canada.
| | - Gosia Zobel
- Animal Behaviour and Welfare Team, AgResearch Ltd., Ruakura Research Centre, 10 Bisley Road, Private Bag 3123, Hamilton 3214, New Zealand.
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14
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Serra L, Giancaterino G, Giulietti G, Petrosini L, Di Domenico C, Marra C, Caltagirone C, Bassi A, Cercignani M, Bozzali M. Cognitive Reserve Modulates Brain Structure and Cortical Architecture in the Alzheimer's Disease. J Alzheimers Dis 2022; 89:811-824. [PMID: 35964192 DOI: 10.3233/jad-220377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Cognitive reserve (CR) explains the individual resilience to neurodegeneration. OBJECTIVE The present study investigated the effect of CR in modulating brain cortical architecture. METHODS 278 individuals [110 Alzheimer's disease (AD), 104 amnestic mild cognitive impairment (aMCI) due to AD, 64 healthy subjects (HS)] underwent a neuropsychological evaluation and 3T-MRI. Cortical thickness (CTh) and fractal dimension (FD) were assessed. Years of formal education were used as an index of CR by which participants were divided into high and low CR (HCR and LCR). Within-group differences in cortical architecture were assessed as a function of CR. Associations between cognitive scores and cortical measures were also evaluated. RESULTS aMCI-HCR compared to aMCI-LCR patients showed significant decrease of CTh in the right temporal and in the left prefrontal lobe. Moreover, they showed increased FD in the right temporal and in the left temporo-parietal lobes. Patients with AD-HCR showed reduced CTh in several brain areas and reduced FD in the left temporal cortices when compared with AD-LCR subjects. HS-HCR showed a significant increase of CTh in prefrontal areas bilaterally, and in the right parieto-occipital cortices. Finally, aMCI-HCR showed significant positive associations between brain measures and memory and executive performance. CONCLUSION CR modulates the cortical architecture at pre-dementia stage only. Indeed, only patients with aMCI showed both atrophy (likely due to neurodegeneration) alongside richer brain folding (likely due to reserve mechanisms) in temporo-parietal areas. This opposite trend was not observed in AD and HS. Our data confirm the existence of a limited time-window for CR modulation at the aMCI stage.
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Affiliation(s)
- Laura Serra
- Neuroimaging Laboratory, Fondazione Santa Lucia, IRCCS, Rome, Italy
| | | | | | - Laura Petrosini
- Laboratory of Experimental and Behavioural Neurophysiology, Fondazione Santa Lucia, IRCCS, Rome, Italy
| | | | - Camillo Marra
- Institute of Neurology, Catholic University, Rome, Italy
| | - Carlo Caltagirone
- Department of Clinicaland Behavioural Neurology, Fondazione Santa Lucia, IRCCS, Rome, Italy
| | - Andrea Bassi
- Department of Clinicaland Behavioural Neurology, Fondazione Santa Lucia, IRCCS, Rome, Italy
| | - Mara Cercignani
- Cardiff University Brain Imaging Centre, School of Psychology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Marco Bozzali
- Brighton & Sussex Medical School, University of Sussex -Brighton, United Kingdom.,Rita Levi Montalcini' Department of Neuroscience University of Torino, Turin, Italy
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15
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Jeon S, Lee S, Charles ST. Not Just How Much, But How Many: Overall and Domain-Specific Activity Variety and Cognitive Functioning in Adulthood. J Gerontol B Psychol Sci Soc Sci 2022; 77:1229-1239. [PMID: 35291012 PMCID: PMC9255927 DOI: 10.1093/geronb/gbac053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Active lifestyles are related to higher levels of cognitive functioning. Fewer studies have examined the importance of engaging in different activities (activity variety) for cognitive functioning. Moreover, it is unclear whether activity variety in specific domains (i.e., cognitive, physical, or social) is important for cognitive health. The current study examined whether overall activity variety as well as variety in specific domains relate to cognitive functioning. METHODS In Waves 2 and 3 of the Survey of Midlife Development in the United States, 3,337 adults reported their activity engagement and completed a cognitive battery. For longitudinal analyses, 2,049 participants were classified into 4 groups based on their rank ordering of activity variety across 9 years (remained high, increased, decreased, or remained low). RESULTS Cross-sectional analyses revealed that overall activity variety was related to higher cognitive functioning over and above activity frequency; physical and social activity variety each contributed significantly and uniquely to this association. Longitudinal analyses revealed that those with consistently low overall activity variety at both waves had lower cognitive functioning at Wave 3 than those with high activity variety at either wave, after adjusting for cognitive functioning at Wave 2. Those with consistently high or increasing social activity variety had higher cognitive functioning at Wave 3 than participants with low activity variety at both waves. DISCUSSION Findings suggest that activity variety, particularly in the social domain, is related to concurrent and future cognitive function across adulthood.
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Affiliation(s)
- Sangha Jeon
- Department of Psychological Science, University of California, Irvine, Irvine, California, USA
| | - Soomi Lee
- School of Aging Studies, University of South Florida, Tampa, Florida, USA
| | - Susan T Charles
- Department of Psychological Science, University of California, Irvine, Irvine, California, USA
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16
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Van Bost G, Van Damme S, Crombez G. Goal adjustment and well-being after an acquired brain injury: the role of cognitive flexibility and personality traits. PeerJ 2022; 10:e13531. [PMID: 35669954 PMCID: PMC9165594 DOI: 10.7717/peerj.13531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 05/12/2022] [Indexed: 01/17/2023] Open
Abstract
Objective The tendency to flexibly adjust goals that are hindered by chronic illness is related to indicators of wellbeing. However, cognitive flexibility is often impaired in persons with an acquired brain injury (ABI), possibly affecting the ability to flexibly adjust goals. In this study we examined whether cognitive flexibility is positively related with the ability to disengage from goals to reengage with goals in persons with ABI. Second, we explored whether goal adjustment abilities are predictive of a unique proportion of the variance inabilities are predictive of quality of life and life satisfaction after controlling for personality traits. Method Seventy-eight persons with an ABI completed a set of questionnaires. Goal disengagement and goal reengagement were assessed using the Wrosch Goal Adjustment Scale (GAS). Indicators of wellbeing were measured with the European Brain Injury Questionnaire (EBIQ) and the Satisfaction with Life Scale (SWLS). The percentage of perseverative errors on the Wisconsin Card Sorting Test (WCST) was used as an indicator of cognitive inflexibility. Big Five personality traits were assessed via the NEO Five Factor Inventory (NEO-FFI). Four hierarchical multiple regression analyses were then conducted. The first two analyses tested the effect of cognitive flexibility on goal adjustment tendencies. The second two analyses tested whether goal adjustment has a predictive value for life satisfaction and QOL beyond personality. Results Cognitive flexibility was positively related to goal reengagement, but not to goal disengagement. Goal reengagement was positively associated with both quality of life and life satisfaction after controlling for demographic, illness characteristics and personality factors. Goal disengagement was negatively related to life satisfaction. Conclusion Flexible goal adjustment abilities have a unique explanatory value for indicators of wellbeing, beyond personality traits. The findings indicate that in persons with lower cognitive flexibility, goal reengagement ability might be negatively affected, and should be taking into account during rehabilitation.
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Affiliation(s)
- Gunther Van Bost
- Department of Experimental Clinical and Health Psychology, Universiteit Gent, Ghent, Belgium,Unit Acquired Brain Injury, Centrum voor Ambulante Revalidatie Ter Kouter, Deinze, Belgium
| | - Stefaan Van Damme
- Department of Experimental Clinical and Health Psychology, Universiteit Gent, Ghent, Belgium
| | - Geert Crombez
- Department of Experimental Clinical and Health Psychology, Universiteit Gent, Ghent, Belgium
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17
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Salmani N, Nozari M, Parvan M, Amini-Sardouei S, Shabani M, Khaksari M, Ezzatabadipour M. Nicotine-conditioned place preference, reversal learning, and social interaction in MK-801-induced schizophrenia model: Effects of post-weaning enriched environment. Clin Exp Pharmacol Physiol 2022; 49:871-880. [PMID: 35622536 DOI: 10.1111/1440-1681.13674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 01/22/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022]
Abstract
Based on the clinical observations of severe cognitive deficits in schizophrenia patients and the relationship between environmental parameters and the severity of schizophrenia symptoms, the present study investigated these parameters in an MK-801-induced schizophrenia model in rats. In addition to, it evaluated whether a post-weaning enriched environment (EE) would affect the nicotine-induced conditioned place preference (CPP) and the motor and cognitive deficits caused by MK-801 treatment. Male Wistar rat pups were injected peritoneally with MK-801 (1 mg/kg) on a daily basis between the 6th and the 10th postnatal days (P) and were exposed to either an enriched or a standard cage from P21 until the end of the experiments. The rats were evaluated in open-field and three-chamber social interaction tests. Moreover, spatial and reversal learning was assessed by the Morris water maze (MWM). Also, the animals were conditioned with 0.6 mg/kg nicotine and tested for CPP. Increased self-grooming, exploratory behavior, potentiated nicotine-CPP, and decreased social behaviors, delayed spatial learning and memory, and impaired reversal learning in the water maze were observed in the MK-801 treatment group. Housing in an EE improved cognitive and behavioral deficits associated with postnatal MK-801 treatment. The results suggested that neonatal N-methyl-D-aspartate (NMDA) receptor hypofunction may cause susceptibility to these behaviors and indicated the importance of environmental conditions in the development of schizophrenia and probably other neuropsychiatric disorders.
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Affiliation(s)
- Neda Salmani
- Department of Psychology, Zarand Branch, Islamic Azad University, Kerman, Iran
| | - Masoumeh Nozari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahdieh Parvan
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Sara Amini-Sardouei
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research, and Physiology Research Centers, Kerman University of Medical Sciences, Kerman, Iran
| | - Massood Ezzatabadipour
- Anatomical Sciences Department, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
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18
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Gelfo F, Petrosini L. Environmental Enrichment Enhances Cerebellar Compensation and Develops Cerebellar Reserve. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095697. [PMID: 35565093 PMCID: PMC9099498 DOI: 10.3390/ijerph19095697] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 12/24/2022]
Abstract
The brain is able to change its structure and function in response to environmental stimulations. Several human and animal studies have documented that enhanced stimulations provide individuals with strengthened brain structure and function that allow them to better cope with damage. In this framework, studies based on the exposure of animals to environmental enrichment (EE) have provided indications of the mechanisms involved in such a beneficial action. The cerebellum is a very plastic brain region that responds to every experience with deep structural and functional rearrangement. The present review specifically aims to collect and synthesize the evidence provided by animal models on EE exposure effects on cerebellar structure and function by considering the studies on healthy subjects and on animals exposed to EE both before and after damage involving cerebellar functionality. On the whole, the evidence supports the role of EE in enhancing cerebellar compensation and developing cerebellar reserve. However, since studies addressing this issue are still scarce, large areas of inconsistency and lack of clarity remain. Further studies are required to provide suggestions on possible mechanisms of enhancement of compensatory responses in human patients following cerebellar damage.
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Affiliation(s)
- Francesca Gelfo
- Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy;
- Correspondence:
| | - Laura Petrosini
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy;
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19
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Azadian A, Gunn-Moore DA. Age-related cognitive impairments in domestic cats naturally infected with feline immunodeficiency virus. Vet Rec 2022; 191:e1683. [PMID: 35512238 DOI: 10.1002/vetr.1683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 03/01/2022] [Accepted: 03/29/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Age-related dementia has been documented in domestic cats; however, its interaction with naturally occurring feline immunodeficiency virus (FIV) infection has been investigated minimally. METHODS Visuospatial working memory (VSWM) and problem-solving (PS) ability were evaluated in FIV-infected (n = 37) and control cats (n = 39) using two cognitive tasks tested serially, which assessed the ability of cats to remember the location of a baited container after a set delay, then evaluated the capability of the cats to manipulate the container to obtain the food within a time limit. Cats were categorized using 7 years of age as a cut-off to determine age-related differences. The relationship between cognitive performance and FIV viral load was investigated using real-time PCR cycle threshold (Ct ) values. RESULTS Age significantly affected VSWM and PS ability. Younger cats had better VSWM performance and PS ability compared to older cats with the same FIV status. There was no difference between younger FIV-positive and negative cats in either part of the task. While older FIV-positive cats had significantly worse VSWM than older FIV-negative cats, no differences were found in PS ability. Additionally, Ct values predicted VSWM but not PS ability. CONCLUSION Age-related cognitive impairments and FIV infection appear synergetic, causing greater cognitive deficits in older FIV-infected cats.
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Affiliation(s)
- Amin Azadian
- Animal Welfare Program, Faculty of Land and Food System, The University of British Columbia, Vancouver, Canada.,Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Danièlle A Gunn-Moore
- Division of Companion Animals, Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, UK.,Division of Infection & Immunity, The Roslin Institute, University of Edinburgh, Midlothian, UK
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20
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Effects of environmental enrichment on exploratory behavior, win-stay and lose-shift performance, motor sequence learning, and reversal learning during the three-lever operant task in mice. Behav Brain Res 2022; 429:113904. [DOI: 10.1016/j.bbr.2022.113904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/29/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022]
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21
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Simulated visual hallucinations in virtual reality enhance cognitive flexibility. Sci Rep 2022; 12:4027. [PMID: 35256740 PMCID: PMC8901713 DOI: 10.1038/s41598-022-08047-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/24/2022] [Indexed: 11/09/2022] Open
Abstract
Historically, psychedelic drugs are known to modulate cognitive flexibility, a central aspect of cognition permitting adaptation to changing environmental demands. Despite proof suggesting phenomenological similarities between artificially-induced and actual psychedelic altered perception, experimental evidence is still lacking about whether the former is also able to modulate cognitive flexibility. To address this, we measure participants' cognitive flexibility through behavioral tasks after the exposure to virtual reality panoramic videos and their hallucinatory-like counterparts generated by the DeepDream algorithm. Results show that the estimated semantic network has a flexible structure when preceded by altered videos. Crucially, following the simulated psychedelic exposure, individuals also show an attenuated contribution of the automatic process and chaotic dynamics underlying the decision process. This suggests that simulated altered perceptual phenomenology enhances cognitive flexibility, presumably due to a reorganization in the cognitive dynamics that facilitates the exploration of uncommon decision strategies and inhibits automated choices.
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22
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Landeck L, Kaiser ME, Hefter D, Draguhn A, Both M. Enriched Environment Modulates Sharp Wave-Ripple (SPW-R) Activity in Hippocampal Slices. Front Neural Circuits 2021; 15:758939. [PMID: 34924964 PMCID: PMC8678456 DOI: 10.3389/fncir.2021.758939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 11/15/2021] [Indexed: 11/29/2022] Open
Abstract
Behavioral flexibility depends on neuronal plasticity which forms and adapts the central nervous system in an experience-dependent manner. Thus, plasticity depends on interactions between the organism and its environment. A key experimental paradigm for studying this concept is the exposure of rodents to an enriched environment (EE), followed by studying differences to control animals kept under standard conditions (SC). While multiple changes induced by EE have been found at the cellular-molecular and cognitive-behavioral levels, little is known about EE-dependent alterations at the intermediate level of network activity. We, therefore, studied spontaneous network activity in hippocampal slices from mice which had previously experienced EE for 10–15 days. Compared to control animals from standard conditions (SC) and mice with enhanced motor activity (MC) we found several differences in sharp wave-ripple complexes (SPW-R), a memory-related activity pattern. Sharp wave amplitude, unit firing during sharp waves, and the number of superimposed ripple cycles were increased in tissue from the EE group. On the other hand, spiking precision with respect to the ripple oscillations was reduced. Recordings from single pyramidal cells revealed a reduction in synaptic inhibition during SPW-R together with a reduced inhibition-excitation ratio. The number of inhibitory neurons, including parvalbumin-positive interneurons, was unchanged. Altered activation or efficacy of synaptic inhibition may thus underlie changes in memory-related network activity patterns which, in turn, may be important for the cognitive-behavioral effects of EE exposure.
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Affiliation(s)
- Lucie Landeck
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany
| | - Martin E Kaiser
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany
| | - Dimitri Hefter
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany.,RG Animal Models in Psychiatry, Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Andreas Draguhn
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany
| | - Martin Both
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany
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23
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Cutuli D, Landolfo E, Petrosini L, Gelfo F. Environmental Enrichment Effects on the Brain-Derived Neurotrophic Factor Expression in Healthy Condition, Alzheimer's Disease, and Other Neurodegenerative Disorders. J Alzheimers Dis 2021; 85:975-992. [PMID: 34897089 DOI: 10.3233/jad-215193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), a protein belonging to the neurotrophin family, is known to be heavily involved in synaptic plasticity processes that support brain development, post-lesion regeneration, and cognitive performances, such as learning and memory. Evidence indicates that BDNF expression can be epigenetically regulated by environmental stimuli and thus can mediate the experience-dependent brain plasticity. Environmental enrichment (EE), an experimental paradigm based on the exposure to complex stimulations, constitutes an efficient means to investigate the effects of high-level experience on behavior, cognitive processes, and neurobiological correlates, as the BDNF expression. In fact, BDNF exerts a key role in mediating and promoting EE-induced plastic changes and functional improvements in healthy and pathological conditions. This review is specifically aimed at providing an updated framework of the available evidence on the EE effects on brain and serum BDNF levels, by taking into account both changes in protein expression and regulation of gene expression. A further purpose of the present review is analyzing the potential of BDNF regulation in coping with neurodegenerative processes characterizing Alzheimer's disease (AD), given BDNF expression alterations are described in AD patients. Moreover, attention is also paid to EE effects on BDNF expression in other neurodegenerative disease. To investigate such a topic, evidence provided by experimental studies is considered. A deeper understanding of environmental ability in modulating BDNF expression in the brain may be fundamental in designing more tuned and effective applications of complex environmental stimulations as managing approaches to AD.
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Affiliation(s)
- Debora Cutuli
- IRCCS Fondazione Santa Lucia, Rome, Italy.,Department of Psychology, University Sapienza of Rome, Rome, Italy
| | - Eugenia Landolfo
- IRCCS Fondazione Santa Lucia, Rome, Italy.,Department of Psychology, University Sapienza of Rome, Rome, Italy
| | | | - Francesca Gelfo
- IRCCS Fondazione Santa Lucia, Rome, Italy.,Department of Human Sciences, Guglielmo Marconi University, Rome, Italy
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24
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Yin SW, Meng YL, Li C, Wang Y. Enriched environment for offspring improves learning and memory impairments induced by sevoflurane exposure during the second trimester of pregnancy. Neural Regen Res 2021; 17:1293-1298. [PMID: 34782574 PMCID: PMC8643064 DOI: 10.4103/1673-5374.327347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Studies in animals indicate that sevoflurane exposure in the second trimester of pregnancy has harmful effects on the learning and memory of offspring. Whether an enriched environment can reverse the damage of sevoflurane exposure in the second trimester of pregnancy on the learning and memory of rat offspring remains unclear. In this study, rats at 14 days of pregnancy were exposed to 3.5% sevoflurane for 2 hours and their offspring were treated with an enriched environment for 20 successive days. We found that the enriched environment for offspring increased nestin and Ki67 levels in hippocampal tissue, increased hippocampal neurogenesis, inhibited glycogen synthase kinase 3β activity, and increased the expression of cell proliferation-related β-catenin and apoptosis-related Bcl-2, indicating that an enriched environment reduces sevoflurane-induced damage by increasing the proliferation of stem cells in the hippocampus. These findings suggest that an enriched environment can reverse the effects of sevoflurane inhaled by rats during the second trimester of pregnancy on learning and memory of offspring. This study was approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University (approval No. 2018PS07K) on January 2, 2018.
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Affiliation(s)
- Shao-Wei Yin
- Department of Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yi-Lin Meng
- Department of Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Chuang Li
- Department of Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yuan Wang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
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25
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Affiliation(s)
- Francesca Gelfo
- Department of Human Sciences, Guglielmo Marconi University; IRCCS Fondazione Santa Lucia, Rome, Italy
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26
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Campbell DLM, Lee C. A Perspective on Strategic Enrichment for Brain Development: Is This the Key to Animal Happiness? Front Vet Sci 2021; 8:720422. [PMID: 34621808 PMCID: PMC8490717 DOI: 10.3389/fvets.2021.720422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Abstract
Livestock animals are sentient beings with cognitive and emotional capacities and their brain development, similar to humans and other animal species, is affected by their surrounding environmental conditions. Current intensive production systems, through the restrictions of safely managing large numbers of animals, may not facilitate optimal neurological development which can contribute to negative affective states, abnormal behaviors, and reduce experiences of positive welfare states. Enrichment provision is likely necessary to enable animals to reach toward their neurological potential, optimizing their cognitive capacity and emotional intelligence, improving their ability to cope with stressors as well as experience positive affect. However, greater understanding of the neurological impacts of specific types of enrichment strategies is needed to ensure enrichment programs are effectively improving the individual's welfare. Enrichment programs during animal development that target key neurological pathways that may be most utilized by the individual within specific types of housing or management situations is proposed to result in the greatest positive impacts on animal welfare. Research within livestock animals is needed in this regard to ensure future deployment of enrichment for livestock animals is widespread and effective in enhancing their neurological capacities.
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Affiliation(s)
- Dana L. M. Campbell
- Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Armidale, NSW, Australia
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Campbell DL, Whitten JM, Slater E, Lee C. Rearing enrichments differentially modified hen personality traits and reduced prediction of range use. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.06.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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28
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The Impact of Stress Within and Across Generations: Neuroscientific and Epigenetic Considerations. Harv Rev Psychiatry 2021; 29:303-317. [PMID: 34049337 DOI: 10.1097/hrp.0000000000000300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The impact of stress and trauma on biological systems in humans can be substantial. They can result in epigenetic changes, accelerated brain development and sexual maturation, and predisposition to psychopathology. Such modifications may be accompanied by behavioral, emotional, and cognitive overtones during one's lifetime. Exposure during sensitive periods of neural development may lead to long-lasting effects that may not be affected by subsequent environmental interventions. The cumulative effects of life stressors in an individual may affect offspring's methylome makeup and epigenetic clocks, neurohormonal modulation and stress reactivity, and physiological and reproductive development. While offspring may suffer deleterious effects from parental stress and their own early-life adversity, these factors may also confer traits that prove beneficial and enhance fitness to their own environment. This article synthesizes the data on how stress shapes biological and behavioral dimensions, drawing from preclinical and human models. Advances in this field of knowledge should potentially allow for an improved understanding of how interventions may be increasingly tailored according to individual biomarkers and developmental history.
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Polanco A, Meagher R, Mason G. Boredom-like exploratory responses in farmed mink reflect states that are rapidly reduced by environmental enrichment, but unrelated to stereotypic behaviour or ‘lying awake’. Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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30
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Macaulay TR, Peters BT, Wood SJ, Clément GR, Oddsson L, Bloomberg JJ. Developing Proprioceptive Countermeasures to Mitigate Postural and Locomotor Control Deficits After Long-Duration Spaceflight. Front Syst Neurosci 2021; 15:658985. [PMID: 33986648 PMCID: PMC8111171 DOI: 10.3389/fnsys.2021.658985] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022] Open
Abstract
Astronauts experience post-flight disturbances in postural and locomotor control due to sensorimotor adaptations during spaceflight. These alterations may have adverse consequences if a rapid egress is required after landing. Although current exercise protocols can effectively mitigate cardiovascular and muscular deconditioning, the benefits to post-flight sensorimotor dysfunction are limited. Furthermore, some exercise capabilities like treadmill running are currently not feasible on exploration spaceflight vehicles. Thus, new in-flight operational countermeasures are needed to mitigate postural and locomotor control deficits after exploration missions. Data from spaceflight and from analog studies collectively suggest that body unloading decreases the utilization of proprioceptive input, and this adaptation strongly contributes to balance dysfunction after spaceflight. For example, on return to Earth, an astronaut's vestibular input may be compromised by adaptation to microgravity, but their proprioceptive input is compromised by body unloading. Since proprioceptive and tactile input are important for maintaining postural control, keeping these systems tuned to respond to upright balance challenges during flight may improve functional task performance after flight through dynamic reweighting of sensory input. Novel approaches are needed to compensate for the challenges of balance training in microgravity and must be tested in a body unloading environment such as head down bed rest. Here, we review insights from the literature and provide observations from our laboratory that could inform the development of an in-flight proprioceptive countermeasure.
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Affiliation(s)
| | | | - Scott J. Wood
- NASA Johnson Space Center, Houston, TX, United States
| | | | - Lars Oddsson
- RxFunction Inc., Eden Prairie, MN, United States
- Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States
- Recaniti School for Community Health Professions, Ben Gurion University of the Negev, Beersheba, Israel
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31
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Cherry KM, Hoeven EV, Patterson TS, Lumley MN. Defining and measuring "psychological flexibility": A narrative scoping review of diverse flexibility and rigidity constructs and perspectives. Clin Psychol Rev 2021; 84:101973. [PMID: 33550157 DOI: 10.1016/j.cpr.2021.101973] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 12/16/2022]
Abstract
Psychological flexibility (PF) is a popular construct in clinical psychology. However, similar constructs have existed since the mid-20th century, resulting in different terms, definitions and measures of flexibility, hindering the advancement of the field. The main measure of PF - the Acceptance and Action Questionnaire (AAQ-II; Bond et al., 2011) - has also been heavily criticized. To move towards definitional consensus and improved measurement, we surveyed the literature to map PF and related-terms, examine definitional overlaps, and assessthe psychometric quality of prominent flexibility measures. A scoping review was conducted in two databases (PsycNET and SCOPUS). Twenty-three flexibility constructs appeared across 220 articles, and twelve measures were included and rated for quality. PF, psychological inflexibility (PI), and cognitive flexibility (CF) were most prominent. Definitional similarities among prominent flexibility constructs emerged, namely handling distress or interference, taking action, and meeting goals or values. The Personalized Psychological Flexibility Index (PPFI; Kashdan, Disabato, Goodman, Doorley, & McKnight, 2020) appears to be the best measure available to assess PF. Problems with the current use of the AAQ-II were apparent, hindering current knowledge of PF. Definitional consensus and measurement development are vital to advance the field. To this end, recommendations and next steps for researchers and practitioners are outlined.
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Affiliation(s)
- Kathlyn M Cherry
- Psychology Department, University of Guelph, Guelph, ON, Canada.
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32
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McQuail JA, Dunn AR, Stern Y, Barnes CA, Kempermann G, Rapp PR, Kaczorowski CC, Foster TC. Cognitive Reserve in Model Systems for Mechanistic Discovery: The Importance of Longitudinal Studies. Front Aging Neurosci 2021; 12:607685. [PMID: 33551788 PMCID: PMC7859530 DOI: 10.3389/fnagi.2020.607685] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022] Open
Abstract
The goal of this review article is to provide a resource for longitudinal studies, using animal models, directed at understanding and modifying the relationship between cognition and brain structure and function throughout life. We propose that forthcoming longitudinal studies will build upon a wealth of knowledge gleaned from prior cross-sectional designs to identify early predictors of variability in cognitive function during aging, and characterize fundamental neurobiological mechanisms that underlie the vulnerability to, and the trajectory of, cognitive decline. Finally, we present examples of biological measures that may differentiate mechanisms of the cognitive reserve at the molecular, cellular, and network level.
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Affiliation(s)
- Joseph A. McQuail
- Department of Pharmacology, Physiology and Neuroscience, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Amy R. Dunn
- The Jackson Laboratory, Bar Harbor, ME, United States
| | - Yaakov Stern
- Cognitive Neuroscience Division, Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, United States
| | - Carol A. Barnes
- Departments of Psychology and Neuroscience, University of Arizona, Tucson, AZ, United States
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, United States
| | - Gerd Kempermann
- CRTD—Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
- German Center for Neurodegenerative Diseases (DZNE), Helmholtz Association of German Research Centers (HZ), Dresden, Germany
| | - Peter R. Rapp
- Laboratory of Behavioral Neuroscience, Neurocognitive Aging Section, National Institute on Aging, Baltimore, MD, United States
| | | | - Thomas C. Foster
- Department of Neuroscience, McKnight Brain Institute, University of Florida, Gainesville, FL, United States
- Genetics and Genomics Program, University of Florida, Gainesville, FL, United States
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33
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Heimer-McGinn VR, Wise TB, Hemmer BM, Dayaw JNT, Templer VL. Social housing enhances acquisition of task set independently of environmental enrichment: A longitudinal study in the Barnes maze. Learn Behav 2020; 48:322-334. [PMID: 32040697 PMCID: PMC7415481 DOI: 10.3758/s13420-020-00418-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Human studies suggest that healthy social relationships benefit cognition, yet little is known about the underlying neural mechanisms of this protective effect. In rodents, studies on acute isolation and environmental enrichment (EE) confirm the importance of social exposure. Despite the widely recognized importance of sociality, however, rodent models have yet to explore the independent contributions of social housing divorced of other forms of enrichment. This study dissociates the effects of social and physical enrichment on spatial learning and memory from adulthood to old age. Rats were placed in either single or group housing, provided with ample enrichment, and tested at three time points on several phases/versions of the Barnes maze (BM) (standard, retention probes, variable location, and reversal). We found that sustained social housing enhanced cognitive flexibility, as evidenced by superior acquisition of task set (standard BM), adaptability to a new task set (variable BM), and improved reversal learning (reversal BM). Long-term retention (BM retention probes) of spatial memory was unaffected by housing conditions. Recent studies from our lab, including this report, are the first to show that social housing confers cognitive benefits beyond those of physical enrichment. Importantly, our experimental design is ideal for exploring the neural underpinnings of this socially induced cognitive protection. Understanding how sociality influences cognition will be invaluable to translational models of aging, neuropsychiatric disease, and neurological injury.
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Affiliation(s)
- Victoria R Heimer-McGinn
- Department of Psychology, Providence College, 1 Cunningham Square, Providence, RI, 02918, USA
- Department of Psychology, Roger Williams University, 1 Old Ferry Road, Bristol, RI, 02809, USA
| | - Taylor B Wise
- Department of Psychology, Providence College, 1 Cunningham Square, Providence, RI, 02918, USA
| | - Brittany M Hemmer
- Department of Psychology, Providence College, 1 Cunningham Square, Providence, RI, 02918, USA
| | - Judith N T Dayaw
- Department of Psychology, Providence College, 1 Cunningham Square, Providence, RI, 02918, USA
| | - Victoria L Templer
- Department of Psychology, Providence College, 1 Cunningham Square, Providence, RI, 02918, USA.
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van der Veen R, Bonapersona V, Joëls M. The relevance of a rodent cohort in the Consortium on Individual Development. Dev Cogn Neurosci 2020; 45:100846. [PMID: 32957026 PMCID: PMC7509002 DOI: 10.1016/j.dcn.2020.100846] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 07/29/2020] [Accepted: 08/23/2020] [Indexed: 12/31/2022] Open
Abstract
One of the features of the Consortium on Individual Development is the existence of a rodent cohort, in parallel with the human cohorts. Here we give an overview of the current status. We first elaborate on the choice of rat and mouse models mimicking early life adverse or beneficial conditions during development. We performed a systematic literature search on early life adversity and adult social behavior to address the status quo. Next, we describe the behavioral tasks we used and designed to examine behavioral control and social competence in rodents. The results so far indicate that manipulation of the environment in the first postnatal week only subtly affects social behavior. Stronger effects were seen in the model that targeted early adolescence; once adult, these rats are characterized by increased attention, a higher degree of impulsiveness and reduced social interest in peers. Many experiments in our rodent models with tightly controlled conditions were inspired by findings in human cohorts, and now allow in-depth mechanistic investigations. Vice versa, some of the findings in rodents are currently followed up by dedicated investigations in the human cohorts. This exemplifies the added value of animal investigations in a consortium encompassing primarily human developmental cohorts.
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Affiliation(s)
- Rixt van der Veen
- Dept. Translational Neuroscience, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands; Faculty of Social and Behavioral Sciences, Leiden University, Leiden, the Netherlands.
| | - Valeria Bonapersona
- Dept. Translational Neuroscience, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Marian Joëls
- Dept. Translational Neuroscience, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands; University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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35
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Queen NJ, Hassan QN, Cao L. Improvements to Healthspan Through Environmental Enrichment and Lifestyle Interventions: Where Are We Now? Front Neurosci 2020; 14:605. [PMID: 32655354 PMCID: PMC7325954 DOI: 10.3389/fnins.2020.00605] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/18/2020] [Indexed: 12/11/2022] Open
Abstract
Environmental enrichment (EE) is an experimental paradigm that is used to explore how a complex, stimulating environment can impact overall health. In laboratory animal experiments, EE housing conditions typically include larger-than-standard cages, abundant bedding, running wheels, mazes, toys, and shelters which are rearranged regularly to further increase stimulation. EE has been shown to improve multiple aspects of health, including but not limited to metabolism, learning and cognition, anxiety and depression, and immunocompetence. Recent advances in lifespan have led some researchers to consider aging as a risk factor for disease. As such, there is a pressing need to understand the processes by which healthspan can be increased. The natural and predictable changes during aging can be reversed or decreased through EE and its underlying mechanisms. Here, we review the use of EE in laboratory animals to understand mechanisms involved in aging, and comment on relative areas of strength and weakness in the current literature. We additionally address current efforts toward applying EE-like lifestyle interventions to human health to extend healthspan. Although increasing lifespan is a clear goal of medical research, improving the quality of this added time also deserves significant attention. Despite hurdles in translating experimental results toward clinical application, we argue there is great potential in using features of EE toward improving human healthy life expectancy or healthspan, especially in the context of increased global longevity.
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Affiliation(s)
- Nicholas J. Queen
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Quais N. Hassan
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
- Medical Scientist Training Program, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Lei Cao
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
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36
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Williams M, Belkin LY, Chen CC. Cognitive Flexibility Matters: The Role of Multilevel Positive Affect and Cognitive Flexibility in Shaping Victims’ Cooperative and Uncooperative Behavioral Responses to Trust Violations. GROUP & ORGANIZATION MANAGEMENT 2020. [DOI: 10.1177/1059601120911224] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Despite a significant growth in the scholarly literature in the area of trust violations and repair in the last decade, extant work has largely ignored the complex and socially competent responses of the victims of these violations. Our framework integrates insights from affective events theory, the broaden-and-build theory of positive emotions, and theories of cognitive processing to suggest that cognitive flexibility is central to understanding how individuals respond to trust violations. Rather than viewing victims solely as gatekeepers to trust repair, we examine how victims’ cognitive processes are influenced by the affective context of those violations, which can, in turn, produce a spectrum of nuanced behavioral responses. We refer to this spectrum as the “swollen middle,” the range of behavior that resides between the extremes of impulsive revenge and forgiveness-based, communal cooperation. By integrating psychological theories of emotion and cognitive processing, we seek to highlight the central role of cognitive flexibility in the range of cooperative responses to trust violations. More broadly, we seek to contribute to the emergence of a new paradigm for studying interpersonal trust at work—a paradigm that explores trust-violating events as situated affect-laden experiences that interact with relevant organizational and interpersonal factors to influence employee behavior and trust dynamics in organizations.
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37
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Mitoma H, Buffo A, Gelfo F, Guell X, Fucà E, Kakei S, Lee J, Manto M, Petrosini L, Shaikh AG, Schmahmann JD. Consensus Paper. Cerebellar Reserve: From Cerebellar Physiology to Cerebellar Disorders. CEREBELLUM (LONDON, ENGLAND) 2020; 19:131-153. [PMID: 31879843 PMCID: PMC6978437 DOI: 10.1007/s12311-019-01091-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cerebellar reserve refers to the capacity of the cerebellum to compensate for tissue damage or loss of function resulting from many different etiologies. When the inciting event produces acute focal damage (e.g., stroke, trauma), impaired cerebellar function may be compensated for by other cerebellar areas or by extracerebellar structures (i.e., structural cerebellar reserve). In contrast, when pathological changes compromise cerebellar neuronal integrity gradually leading to cell death (e.g., metabolic and immune-mediated cerebellar ataxias, neurodegenerative ataxias), it is possible that the affected area itself can compensate for the slowly evolving cerebellar lesion (i.e., functional cerebellar reserve). Here, we examine cerebellar reserve from the perspective of the three cornerstones of clinical ataxiology: control of ocular movements, coordination of voluntary axial and appendicular movements, and cognitive functions. Current evidence indicates that cerebellar reserve is potentiated by environmental enrichment through the mechanisms of autophagy and synaptogenesis, suggesting that cerebellar reserve is not rigid or fixed, but exhibits plasticity potentiated by experience. These conclusions have therapeutic implications. During the period when cerebellar reserve is preserved, treatments should be directed at stopping disease progression and/or limiting the pathological process. Simultaneously, cerebellar reserve may be potentiated using multiple approaches. Potentiation of cerebellar reserve may lead to compensation and restoration of function in the setting of cerebellar diseases, and also in disorders primarily of the cerebral hemispheres by enhancing cerebellar mechanisms of action. It therefore appears that cerebellar reserve, and the underlying plasticity of cerebellar microcircuitry that enables it, may be of critical neurobiological importance to a wide range of neurological/neuropsychiatric conditions.
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Affiliation(s)
- H Mitoma
- Medical Education Promotion Center, Tokyo Medical University, Tokyo, Japan.
| | - A Buffo
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, 10126, Turin, Italy
- Neuroscience Institute Cavalieri Ottolenghi, 10043, Orbassano, Italy
| | - F Gelfo
- Department of Human Sciences, Guglielmo Marconi University, 00193, Rome, Italy
- IRCCS Fondazione Santa Lucia, 00179, Rome, Italy
| | - X Guell
- Department of Neurology, Massachusetts General Hospital, Ataxia Unit, Cognitive Behavioral Neurology Unit, Laboratory for Neuroanatomy and Cerebellar Neurobiology, Harvard Medical School, Boston, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, USA
| | - E Fucà
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, 10126, Turin, Italy
- Neuroscience Institute Cavalieri Ottolenghi, 10043, Orbassano, Italy
- Child and Adolescent Neuropsychiatry Unit, Bambino Gesù Children's Hospital, 00165, Rome, Italy
| | - S Kakei
- Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - J Lee
- Komatsu University, Komatsu, Japan
| | - M Manto
- Unité des Ataxies Cérébelleuses, Service de Neurologie, CHU-Charleroi, 6000, Charleroi, Belgium
- Service des Neurosciences, University of Mons, 7000, Mons, Belgium
| | - L Petrosini
- IRCCS Fondazione Santa Lucia, 00179, Rome, Italy
| | - A G Shaikh
- Louis Stokes Cleveland VA Medical Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - J D Schmahmann
- Department of Neurology, Massachusetts General Hospital, Ataxia Unit, Cognitive Behavioral Neurology Unit, Laboratory for Neuroanatomy and Cerebellar Neurobiology, Harvard Medical School, Boston, USA
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