Publications by authors named "Miguel A Castellanos"

Introduction: Women have been shown to be a vulnerable group in relation to mental health problems over time. Despite this, gender-focused studies are uncommon. The aim of this research is to study mental health in a sample of people with mental health problems and to analyze the differences and predictors focusing on gender.

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Background: This study aims to longitudinally assess the psychological impact of the COVID-19 pandemic in the general Spanish population. It uses four assessment points: two weeks after the start of confinement, one month after, two months after, and one year after the first evaluation.

Methods: Evaluations were conducted through an online survey, with a sample of 3,480 people at the first data collection and 1,041, 569, and 550 people at successive evaluation points.

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Background: Despite presenting higher risk of dementia, mild cognitive impairment (MCI) is not well defined in Down syndrome population.

Objective: We aimed to describe cognitive and neuropsychological patterns associated with MCI in Down syndrome individuals.

Method: Two groups of adults with Down syndrome (control and prodromal) were studied throughout 3 years.

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The objective of the present study was to evaluate whether declarative memory deficits are related to executive function deficits (EF), since they could be a consequence of a poor organization of the material to memorize. This interaction between both cognitive processes can be studied simultaneously in a single task such as the Test of Memory Strategies (TSM). 23 patients with paranoid schizophrenic disorder, 11 with bipolar disorder with psychotic symptoms, 13 with bipolar disorder without psychotic symptoms and 15 healthy subjects were evaluated with the TSM; with the memory test Texts A and B (subtest of the Barcelona neuropsychological assessment battery), which assesses short-term and immediate recall without the influence of EF; and with the Trail Making Test (TMT): Part A (sustained attention) and Part B (executive control).

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In this study we intend to understand the impact of the COVID-19 crisis and the subsequent stay-at-home orders, on the Spanish population's sense of belonging at three moments in time: at the beginning of the lockdown, after one month of lockdown and with the return to the "new normality". A cross-sectional study was conducted through an online survey (N = 3480; N = 1041; N = 569). The sense of belonging was evaluated by means of four Likert-type items.

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Background: Stigma and discrimination have been associated with different diseases and pandemics, with negative consequences for the people who suffered them and for their communities. Currently, COVID-19 has become a new source of stigmatization.

Aims: The aim of the present study is to analyze longitudinally the evolution of intersectional perceived discrimination and internalized stigma among the general population of Spain, at three points in time throughout the confinement.

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Major depressive disorder (MDD) is one of the most prevalent conditions among mental disorders in individuals over 65 years. People over 65 who suffer from MDD are often functionally impaired, chronically physically ill, and express cognitive problems. The concordance between a clinician-assessed MDD diagnosis in a primary care setting and MDD assessed with a structured clinical interview in older adults is only approximately 18%.

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Covid-19 remains a pandemic that most countries in the world are still dealing with. This is study aims to report the psychological impact of Covid-19 over time on the Spanish population. A longitudinal study ( = 1041) was carried out with two measurements: after 2 and 5 weeks starting from the declaration of the state of emergency in Spain.

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The pandemic caused by Covid-19 has been an unprecedented social and health emergency worldwide. This is the first study in the scientific literature reporting the psychological impact of the Covid-19 outbreak in a sample of the Spanish population. A cross-sectional study was conducted through an online survey of 3480 people.

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The emergence of the Implicit Association Test (IAT) has encouraged the study of the implicit stigma associated with mental illness in recent years, although further research is still needed in this area. A sample (n = 102) composed of psychology students and people from the general population completed explicit stigma tests: Attribution Questionnaire-9 (AQ-9), Social Distance Scale (DS) and a Spanish version of the IAT. A statistical analysis of sociodemographic measures and variables, and the relationships between explicit and implicit evidence, was carried out.

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Goals: The UCLA LS-R is the most extensively used scale to assess loneliness. However, few studies examine the scale's use on older individuals. The goal of the study is to analyse the suitability of the scale´s structure for assessing older individuals.

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Loneliness is a risk factor for morbidity as well as mortality. Older people are more vulnerable to feeling alone due to age-associated changes and losses they might experience. This study aimed to analyze sociodemographic, psychosocial, and mental health variables related to loneliness in the elderly.

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The MentDis_ICF65+ Project is an epidemiological study of mental disorders in people 65 to 85 years old in several European cities, including Madrid. Its aim is to determine the lifetime, 12-month, and 1-month prevalence of the main mental disorders in the elderly. The relationship of age and sex with each mental disorder was examined.

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Objectives: To adapt the Internalized Stigma of Mental Illness scale (ISMI) to examine self-stigma associated with aging and to study the psychometric properties of this adapted version (IS65+). Finally, self-stigma associated with age in older people is studied.

Method: The IS65+ was administered to a random sample of 419 people over 65 years from Madrid (Spain) to study the psychometric properties of this adapted version.

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Previous research has shown a visual asymmetry in shaded stimuli where the perceived contrast depended on the polarity of their dark and light areas (Chacón, 2004). In particular, circles filled out with a top-dark luminance ramp were perceived with higher contrast than top-light ones although both types of stimuli had the same physical contrast. Here, using shaded stimuli, we conducted four experiments in order to find out if the perceived contrast depends on: (a) the contrast level, (b) the type of shading (continuous vs.

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Impulsivity has been widely studied in the context of traffic. The trait is believed to be the root of some accidents, along with other variables like aggression and anger. The present research objective is to develop a new scale - the I-Driving Scale (IDS) - to evaluate and measure the construct of impulsivity in specific driving situations.

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Semantic and verbal fluency tasks are widely used as a measure of frontal capacities. It has been well described in literature that patients affected by schizophrenic and bipolar disorders present a worse execution in these tasks. Some authors have also noted the importance of educational years.

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Consolation, i.e., post-conflict affiliation directed from bystanders to recent victims of aggression, has recently acquired an important role in the debate about empathy in great apes.

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Chimpanzees are known to spontaneously provide contact comfort to recent victims of aggression, a behavior known as consolation. Similar behavior in human children is attributed to empathic or sympathetic concern. In line with this empathy hypothesis, chimpanzee consolation has been shown to reduce the recipient's state of arousal, hence to likely alleviate distress.

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