In visual search, the repetition of target and distractor colors enables both successful search and effective distractor handling. Nevertheless, the specific consequences of trial-to-trial feature repetition in different search contexts are poorly understood. Here, we investigated how feature repetition shapes the electrophysiological and behavioral correlates of target processing and distractor handling, testing theoretically informed predictions with single-trial mixed-effects modeling.
View Article and Find Full Text PDFObjectives: to comprehend men's perception of paternal parenthood while caring for infants to promote child development.
Methods: this qualitative study adopts an exploratory approach and was conducted with undergraduate and graduate students, faculty, and staff who are fathers of infants up to 6 months old from a higher education institution, excluding fathers from mononuclear families. Data collection occurred through semi-structured interviews and was analyzed using thematic categorical analysis.
Objective: Early synchrony alterations have been observed through electrophysiological techniques in Mild Cognitive Impairment (MCI), which is considered the intermediate phase between healthy aging (HC) and Alzheimer's disease (AD). However, the documented direction (hyper/hypo-synchronization), regions and frequency bands affected are inconsistent. This meta-analysis intended to elucidate existing evidence linked to potential neurophysiological biomarkers of AD.
View Article and Find Full Text PDFSexually objectified women are perceived as dehumanized. This may affect the behavioral and neural responses underlying the observer's empathic reactions for their physical pain, although this hypothesis still lacks empirical support. In the present study, we measured the electrophysiological activity of 30 participants (14 females and 16 males), in an empathy for physical pain paradigm in which pictures of sexualized and non-sexualized women were presented in painful and non-painful situations.
View Article and Find Full Text PDFThis study of multiple cases aimed to analyze the social support network of young mothers of children diagnosed with congenital syphilis in a municipality in Ceará with six participants. Information was collected through semi-structured interviews and analyzed using the cross-case synthesis analytical technique. The young women's social network comprised family members, people outside the family, and social facilities.
View Article and Find Full Text PDFWidespread cognitive test screening as part of tele-public health initiatives necessitates a test that is self-administered online and automatically scored, with no clinician effort. The feasibility of unsupervised cognitive screening is unclear. We adapted the Self-Administered Tasks Uncovering Risk of Neurodegeneration (SATURN) to make it suitable for self-administration and automatic scoring.
View Article and Find Full Text PDFOlder adults have reduced performance in visual working memory tasks in comparison to young adults, but the precipitators of the age-related impairment are not fully understood. The most common interpretation of this difference is that older adults are incapable of maintaining the same amount of object representations as young adults over short intervals (in line with the fixed-slot model of working memory). However, it has remained largely unexplored whether the age-related decline is only due to the number of representations that older individuals can retain in visual working memory, or whether the content of the representation(s) may have an effect as well (in line with the flexible-resource model of working memory).
View Article and Find Full Text PDFCognitive decrements are typical of physiological aging. Among these age-related cognitive changes, visuo-spatial working memory (vWM) decline has a prominent role due to its effects on other cognitive functions and daily routines. To reinforce vWM in the aging population, several cognitive training interventions have been developed in the past years.
View Article and Find Full Text PDFA right-hemisphere dominance for visuospatial attention has been invoked as the most prominent neural feature of pseudoneglect (i.e., the leftward visuospatial bias exhibited in neurologically healthy individuals) but the neurophysiological underpinnings of such advantage are still controversial.
View Article and Find Full Text PDFWhen animals are previously exposed to two different visual stimuli simultaneously, their learning performance at discriminating those stimuli delays: such a phenomenon is known as "classifying-together" or "Bateson effect". However, the consistency of this phenomenon has not been wholly endorsed, especially considering the evidence collected in several vertebrates. The current study addressed whether a teleost fish, Xenotoca eiseni, was liable to the Bateson effect.
View Article and Find Full Text PDFThe neural activity of human brain changes in healthy individuals during aging. The most frequent variation in patterns of neural activity are a shift from posterior to anterior areas and a reduced asymmetry between hemispheres. These patterns are typically observed during task execution and by using functional magnetic resonance imaging data.
View Article and Find Full Text PDFObjectives: to understand families' behaviors and eating practices in the face of childhood obesity.
Methods: a qualitative study, which used the Grounded Theory as a methodological framework and the Complexity Theory as a theoretical framework. Twenty-six informants participated in the study, who were part of two sample groups.
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn
May 2023
Learning results from online (within-session) and offline (between-sessions) changes. Heterogeneity of age-related effects in learning may be ascribed to aging differentially affecting these two processes. We investigated the contribution of online and offline consolidation in visuo-spatial working memory (vWM).
View Article and Find Full Text PDFFront Aging Neurosci
January 2022
Electroencephalography (EEG) studies investigating visuo-spatial working memory (vWM) in aging typically adopt an event-related potential (ERP) analysis approach that has shed light on the age-related changes during item retention and retrieval. However, this approach does not fully enable a detailed description of the time course of the neural dynamics related to aging. The most frequent age-related changes in brain activity have been described by two influential models of neurocognitive aging, the Hemispheric Asymmetry Reduction in Older Adults (HAROLD) and the Posterior-Anterior Shift in Aging (PASA).
View Article and Find Full Text PDFA reduction in cognitive resources has been originally proposed to account for age-related decrements in several cognitive domains. According to this view, aging limits the pool of available cognitive supplies: Compared to younger adults, elderly exhaust the resources more rapidly as task difficulty increases, hence a dramatic performance drop. Neurophysiological indexes (e.
View Article and Find Full Text PDFThe task of identifying and characterizing network structures out of experimentally observed time series is tackled by implementing different solutions, ranging from entropy-based techniques to the evaluation of the significance of observed correlation estimators. Among the metrics that belong to the first class, mutual information is of major importance due to the relative simplicity of implementation and its relying on the crucial concept of entropy. With regard to the second class, a method that allows us to assess the connectivity strength of a link in terms of a time scale of its observability via the significance estimate of measured cross correlation was recently shown to provide a reliable tool to study network structures.
View Article and Find Full Text PDFNormal aging is usually accompanied by several structural and functional physiological changes of the brain, which are closely related to alterations of cognitive functions (e.g., visual short-term memory).
View Article and Find Full Text PDFExtracting the number of objects in perceived scenes is a fundamental cognitive ability. Number processing is proposed to rely on two consecutive stages: an early object location map that captures individuated objects in a location-specific way and a subsequent location-invariant representation that captures numerosity at an abstract level. However, it is unclear whether this framework applies to small numerosities that can be individuated at once ("subitized").
View Article and Find Full Text PDFObjective: to identify the information demands of families of children with Autism Spectrum Disorder.
Method: this is a qualitative study conducted through semi-structured and audio-recorded interviews with 55 family members, in the states of Paraná, Ceará, and Macapá, between September 2018 and September 2019. Thematic category analysis and Qualitative Data Analysis Software resources were used for data organization.
Objective: To identify the sources of informational support used by families of children with Autism Spectrum Disorder.
Method: Qualitative and descriptive research carried out in three health institutions and three teaching institutions in Paraná, Ceará and Amapá. 55 family members participated who responded to semi-structured interviews, between September 2018 and 2019.
A decline in visuospatial Working Memory (vWM) is a hallmark of cognitive aging across various tasks, and facing this decline has become the target of several studies. In the current study we tested whether older adults can benefit from task repetition in order to improve their performance in a vWM task. While learning by task repetition has been shown to improve vWM performance in young adulthood, little is known on whether a similar enhancement can be achieved also by the aging population.
View Article and Find Full Text PDFObjectives: to describe the Adult's perception of healthcare after Myocardium Infarction.
Methods: qualitative descriptive analysis carried out with 12 adults who had myocardial infarction and conducted from February to May 2018. The research design was based on the "Consolidated Criteria for Reporting Qualitative Research".
Objectives: to identify the relation between family management and socioeconomic situation of children and adolescents with neurological disorders.
Methods: a descriptive and correlational study with 141 family members who answered a questionnaire on socioeconomic and family management information. Data collection took place between May and September 2016 in a pediatric neurology center.
Objective: To describe the strengthening and weakening factors for breastfeeding.
Method: This is a descriptive multiple case qualitative study, conducted in Curitiba, Parana, with members of 17 families with children between 6 and 12 months old, through semi-structured interview and construction of genograms, analyzed by the strategy of cross case synthesis.
Results: 28 people participated in the study.
Research on enumeration with isolated objects has indicated that young and older adults can report up to three elements with similar efficiency (subitizing effect). Recent studies on subitizing in young adults have shown that individuation occurs over parts of an object as efficiently as over physically disconnected objects, suggesting that spatial separation is a sufficient requirement for efficient individuation. Do young and older adults share this sufficient requirement? In two experiments, we tested for the presence of subitizing in an enumeration task with a varying number of distinct objects and object parts.
View Article and Find Full Text PDF