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Moral Emotions and Their Brain Structural Correlates Across Neurodegenerative Disorders
(2023)
Sandra Baez
;
Catalina Trujillo-Llano
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Leonardo Cruz de Souza
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Patricia Lillo
;
Gonzalo Forno
<jats:p>Background: Although social cognition is compromised in patients with neurodegenerative disorders such as behavioral variant frontotemporal dementia (bvFTD) and Alzheimer’s disease (AD), research on moral emotions and their neural correlates in these populations is scarce. No previous study has explored the utility of moral emotions, compared to and in combination with classical general cognitive state tools, to discriminate bvFTD from AD patients. Objective: To examine self-conscious (guilt and embarrassment) and other-oriented (pity and indignation) moral emotions, their subjective experience, and their structural brain underpinnings in bvFTD (n = 31) and AD (n = 30) patients, compared to healthy controls (n = 37). We also explored the potential utility of moral emotions measures to discriminate bvFTD from AD. Methods: We used a modified version of the Moral Sentiment Task measuring the participants’ accuracy scores and their emotional subjective experiences. Results: bvFTD patients exhibited greater impairments in self-conscious and other-oriented moral emotions as compared with AD patients and healthy controls. Moral emotions combined with general cognitive state tools emerged as useful measures to discriminate bvFTD from AD patients. In bvFTD patients, lower moral emotions scores were associated with lower gray matter volumes in caudate nucleus and inferior and middle temporal gyri. In AD, these scores were associated with lower gray matter volumes in superior and middle frontal gyri, middle temporal gyrus, inferior parietal lobule and supramarginal gyrus. Conclusion: These findings contribute to a better understanding of moral emotion deficits across neurodegenerative disorders, highlighting the potential benefits of integrating this domain into the clinical assessment.</jats:p>
24Scopus© Citations 3
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Does culture shape our understanding of others’ thoughts and emotions? An investigation across 12 countries.
(2022)
François Quesque
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Antoine Coutrot
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Sharon Cox
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Leonardo Cruz de Souza
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Sandra Baez
24Scopus© Citations 35
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Apathy, Executive Function, and Emotion Recognition Are the Main Drivers of Functional Impairment in Behavioral Variant of Frontotemporal Dementia
(2022)
Gada Musa Salech
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Patricia Lillo
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Karin van der Hiele
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Carolina Méndez-Orellana
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Agustín Ibáñez
<jats:p><jats:bold>Background:</jats:bold> The cognitive and neuropsychiatric deficits present in patients with behavioral variant frontotemporal dementia (bvFTD) are associated with loss of functionality in the activities of daily living (ADLs). The main purpose of this study was to examine and explore the association between the cognitive and neuropsychiatric features that might prompt functional impairment of basic, instrumental, and advanced ADL domains in patients with bvFTD.</jats:p><jats:p><jats:bold>Methods:</jats:bold> A retrospective cross-sectional study was conducted with 27 patients with bvFTD in its early stage (&lt;2 years of evolution) and 32 healthy control subjects. A neuropsychological assessment was carried out wherein measures of cognitive function and neuropsychiatric symptoms were obtained. The informant-report Technology–Activities of Daily Living Questionnaire was used to assess the percentage of functional impairment in the different ADL domains. To identify the best determinants, three separate multiple regression analyses were performed, considering each functional impairment as the dependent variable and executive function, emotion recognition, disinhibition, and apathy as independent variables.</jats:p><jats:p><jats:bold>Results:</jats:bold> For the basic ADLs, a model that explains 28.2% of the variability was found, in which the presence of apathy (β = 0.33, <jats:italic>p</jats:italic> = 0.02) and disinhibition (β = 0.29, <jats:italic>p</jats:italic> = 0.04) were significant factors. Concerning instrumental ADLs, the model produced accounted for 63.7% of the functional variability, with the presence of apathy (β = 0.71, <jats:italic>p</jats:italic> &lt; 0.001), deficits in executive function (β = −0.36, <jats:italic>p</jats:italic> = 0.002), and lack of emotion recognition (β = 0.28, <jats:italic>p</jats:italic> = 0.017) as the main contributors. Finally, in terms of advanced ADLs, the model found explained 52.6% of the variance, wherein only the presence of apathy acted as a significant factor (β = 0.59, <jats:italic>p</jats:italic> &lt; 0.001).</jats:p><jats:p><jats:bold>Conclusions:</jats:bold> The results of this study show the prominent and transverse effect of apathy in the loss of functionality throughout all the ADL domains. Apart from that, this is the first study that shows that the factors associated with loss of functionality differ according to the functional domain in patients with bvFTD in its early stage. Finally, no other study has analyzed the impact of the lack of emotion recognition in the functionality of ADLs. These results could guide the planning of tailored interventions that might enhance everyday activities and the improvement of quality of life.</jats:p>
1Scopus© Citations 28
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Multidimensional Clinical Assessment in Frontotemporal Dementia and Its Spectrum in Latin America and the Caribbean: A Narrative Review and a Glance at Future Challenges
(2022)
Fernando Henríquez
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Victoria Cabello
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Sandra Baez
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Leonardo Cruz de Souza
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Patricia Lillo
<jats:p>Frontotemporal dementia (FTD) is the third most common form of dementia across all age groups and is a leading cause of early-onset dementia. The Frontotemporal dementia (FTD) includes a spectrum of diseases that are classified according to their clinical presentation and patterns of neurodegeneration. There are two main types of FTD: behavioral FTD variant (bvFTD), characterized by a deterioration in social function, behavior, and personality; and primary progressive aphasias (PPA), characterized by a deficit in language skills. There are other types of FTD-related disorders that present motor impairment and/or parkinsonism, including FTD with motor neuron disease (FTD-MND), progressive supranuclear palsy (PSP), and corticobasal syndrome (CBS). The FTD and its associated disorders present great clinical heterogeneity. The diagnosis of FTD is based on the identification through clinical assessments of a specific clinical phenotype of impairments in different domains, complemented by an evaluation through instruments, i.e., tests and questionnaires, validated for the population under study, thus, achieving timely detection and treatment. While the prevalence of dementia in Latin America and the Caribbean (LAC) is increasing rapidly, there is still a lack of standardized instruments and consensus for FTD diagnosis. In this context, it is important to review the published tests and questionnaires adapted and/or validated in LAC for the assessment of cognition, behavior, functionality, and gait in FTD and its spectrum. Therefore, our paper has three main goals. First, to present a narrative review of the main tests and questionnaires published in LAC for the assessment of FTD and its spectrum in six dimensions: (i) Cognitive screening; (ii) Neuropsychological assessment divided by cognitive domain; (iii) Gait assessment; (iv) Behavioral and neuropsychiatric symptoms; (v) Functional assessment; and (vi) Global Rating Scale. Second, to propose a multidimensional clinical assessment of FTD in LAC identifying the main gaps. Lastly, it is proposed to create a LAC consortium that will discuss strategies to address the current challenges in the field.</jats:p>
1 4Scopus© Citations 18
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Inside minds, beneath diseases: social cognition in amyotrophic lateral sclerosis-frontotemporal spectrum disorder
(2020)
Patricia Lillo
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Paulo Caramelli
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Gada Musa
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Teresa Parrao
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Ricardo Hughes
<jats:sec><jats:title>Objective</jats:title><jats:p>To compare social cognition performance between patients with amyotrophic lateral sclerosis (ALS) and those patients with behavioural variant frontotemporal dementia (bvFTD).</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We included 21 participants with ALS, 20 with bvFTD and 21 healthy controls who underwent a comprehensive cognitive battery, including the short version of the Social Cognition and Emotional Assessment (Mini-SEA), which comprises the <jats:italic>faux pas</jats:italic> test and Facial Emotion Recognition Test (FERT); Mini-Mental State Examination; Frontal Assessment Battery; lexical fluency (F-A-S), category fluency (animals/minute), digit span (direct and backwards) tests and the Hayling test. A post hoc analysis was conducted with the patients with ALS divided into two subgroups: patients without cognitive impairment (ALScn; n=13) and patients with cognitive impairment (ALSci; n=8).</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>No significant difference was noted between participant groups in terms of the age, sex and education. ALS-total group and patients with bvFTD had similar disease durations. Patients with ALSci performed poorly when compared with controls with regard to the FERT (p<0.001), the <jats:italic>faux pas</jats:italic> (p<0.004) and the Mini-SEA (p<0.002) total scores. Moreover, patients with bvFTD performed poorly in comparison with controls in executive and social cognition tests. The performance of patients with ALSci was similar to that of patients with bvFTD, while the performance of patients with ALScn was similar to that of controls.</jats:p></jats:sec><jats:sec><jats:title>Discussion</jats:title><jats:p>Our findings support a cognitive continuum between ALS and bvFTD and shed light on the cognitive heterogeneity of ALS, expanding its possible neuropsychological profiles.</jats:p></jats:sec>
8Scopus© Citations 9
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Alzheimer’s Disease or Behavioral Variant Frontotemporal Dementia? Review of Key Points Toward an Accurate Clinical and Neuropsychological Diagnosis
(2020)
Gada Musa
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Andrea Slachevsky
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Carlos Muñoz-Neira
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Carolina Méndez-Orellana
;
Roque Villagra
29Scopus© Citations 73

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