The hippocampus and amygdala are the first brain regions to show early signs of Alzheimer's Disease (AD) pathology. AD is preceded by a prodromal stage known as Mild Cognitive Impairment (MCI), a crucial crossroad in the clinical progression of the disease. The topographical development of AD has been the subject of extended investigation.
View Article and Find Full Text PDFColor influences behavior, from the simplest to the most complex, through controlled and more automatic information elaboration processes. Nonetheless, little is known about how and when these highly interconnected processes interact. This study investigates the interaction between controlled and automatic processes during the processing of color information in a lexical decision task.
View Article and Find Full Text PDFAlzheimers Dement (N Y)
December 2023
Introduction: Accumulating evidence indicates that the amygdala exhibits early signs of Alzheimer's disease (AD) pathology. However, it is still unknown whether the atrophy of distinct subfields of the amygdala also participates in the transition from healthy cognition to mild cognitive impairment (MCI).
Methods: Our sample was derived from the AD Neuroimaging Initiative 3 and consisted of 97 cognitively healthy (HC) individuals, sorted into two groups based on their clinical follow-up: 75 who remained stable (s-HC) and 22 who converted to MCI within 48 months (c-HC).
Neurosci Biobehav Rev
March 2024
Conscious Cogn
May 2023
Metacognition in working memory (WM) has received less attention than episodic memory, and few studies have investigated confidence judgements while carrying out a verbal WM task. The present study investigated whether individuals are aware of their own level of performance while carrying out an ongoing verbal WM task, and whether judgments of confidence are sensitive to factors that determine WM performance. A verbal n-back task was adapted to obtain confidence judgments on a trial-by-trial basis.
View Article and Find Full Text PDFHeightened average life expectancy, which is increasing the number of older adults destined to live alone in the future, is forcing society to acknowledge the strong positive correlation between health costs and age [...
View Article and Find Full Text PDFMotor imagery (MI) describes a dynamic cognitive process where a movement is mentally simulated without taking place and holds potential as a means of stimulating motor learning and regaining motor skills. There is growing evidence that imagined and executed actions have common neural circuitry. Since MI counteracts cognitive and motor decline, a growing interest in MI-based mental exercise for older individuals has emerged.
View Article and Find Full Text PDFObjectives: We developed a new Italian short version of the Geriatric Anxiety Scale (GAS-12) and evaluated its psychometric properties. The GAS-12 specifically screens for anxiety symptoms in the Italian older adult population by identifying items that best discriminate anxiety in this population.
Methods: In Study 1, we administered the full-length Italian translation of the GAS to 517 older adults and used item response theory to identify the most discriminating items and to develop the short form used in Study 2.
Curiosity benefits memory for target information and may also benefit memory for incidental information presented during curiosity states. However, it is not known whether incidental curiosity-enhanced memory depends on or is affected by the valence of the incidental information during curiosity states. Here, older and younger participants incidentally encoded unrelated face images (positive, negative, and neutral) while they anticipated answers to trivia questions.
View Article and Find Full Text PDFThe concept of emotion is a complex neural and psychological phenomenon, central to the organization of human social behavior. As the result of subjective experience, emotions involve bottom-up cognitive styles responsible for efficient adaptation of human behavior to the environment based on salient goals. Indeed, bottom-up cognitive processes are mandatory for clarifying emotion-cognition interactions.
View Article and Find Full Text PDFResearch using short musical sequences and musical tracks created by means of computer algorithms has demonstrated that individuals with or without musical skills can match these soundtracks to specific tastes with above-chance accuracy. More recently, a study that investigated implicit effects associated with crossmodal congruency/incongruency between auditory cues and food images found that such soundtracks are effective in eliciting facilitating effects of taste quality classification with congruent food images as well. In the present study, we tested whether this crossmodal congruency between auditory cues and food images may also influence food image choice by means of a forced-choice task.
View Article and Find Full Text PDFBoth the selection and consumption of food are biologically necessary for survival. Consequently, individuals may consider food as a primary and biologically relevant stimulus. In addition, recent findings support specific patterns of food preference during the lifespan development.
View Article and Find Full Text PDFNeurosci Biobehav Rev
May 2020
We review neuroimaging research investigating self-referential processing (SRP), that is, how we respond to stimuli that reference ourselves, prefaced by a lexical-thematic analysis of words indicative of "self-feelings". We consider SRP as occurring verbally (V-SRP) and non-verbally (NV-SRP), both in the controlled, "top-down" form of introspective and interoceptive tasks, respectively, as well as in the "bottom-up" spontaneous or automatic form of "mind wandering" and "body wandering" that occurs during resting state. Our review leads us to outline a conceptual and methodological framework for future SRP research that we briefly apply toward understanding certain psychological and neurological disorders symptomatically associated with abnormal SRP.
View Article and Find Full Text PDFA growing body of evidence suggests that emotional prosody influences the ability to remember verbal information. Although bipolar disorder (BD) has been shown to be associated with deficits in verbal memory and emotional processing, the relation between these processes in this population remains unclear. In the present study, we aimed to investigate the impact of emotional prosody on verbal memory in euthymic BD patients compared with controls.
View Article and Find Full Text PDFWhereas the role of observers' sex has already been addressed in research on embodied cognition, so far it has been neglected as regards laterality effects in embodied cognition. Here, we report further analyses of the data used in our paper "Hemispheric asymmetries in the processing of body sides: A study with ambiguous human silhouettes" [1], where participants had to indicate the perceived orientation of silhouettes with ambiguous front/back orientation and handedness presented in the right and left hemifield. Specifically, the variables examined in the associated paper (the number of right- and left-sided silhouettes perceived as front- and back-facing in each hemifield; the number of silhouettes perceived as right- and left-handed in each hemifield) are analyzed by also factoring in participant's sex).
View Article and Find Full Text PDFObjective: Previous studies have suggested that genetic factors, personality traits and coping strategies might play both independent and interacting roles when influencing stress-related anxiety symptoms. The aim of this study was to examine whether Neuroticism and maladaptive coping strategies mediate the association between the serotonin transporter gene-linked polymorphic region (5HTT-LPR) and symptoms of anxiety and depression in elite athletes who experience high levels of competitive stress.
Method: One hundred and thirty-three participants were genotyped for the 5-HTTLPR polymorphism and then asked to complete the Cope Orientation to Problems Experienced Inventory and the NEO Five-Factor Inventory.
Clin Interv Aging
December 2018
Depression in later life is a significant and growing problem. Age-related differences in the type and severity of depressive disorders continue to be questioned and necessarily question differential methods of assessment and treatment strategies. A host of geropsychiatric measures have been developed for diagnostic purposes, for rating severity of depression, and monitoring treatment progress.
View Article and Find Full Text PDFA growing body of empirical research documents the existence of several interesting crossmodal correspondences between auditory and gustatory/flavor stimuli, demonstrating that people can match specific acoustic and musical parameters with different tastes and flavors. In this context, a number of researchers and musicians arranged their own soundtracks so as to match specific tastes and used them for research purposes, revealing explicit crossmodal effects on judgments of taste comparative intensity or of taste/sound accordance. However, only few studies have examined implicit associations related to taste-sound correspondences.
View Article and Find Full Text PDFFront Hum Neurosci
December 2017
The easy availability of food has caused a shift from eating for survival to hedonic eating. Women, compared to men, have shown to respond differently to food cues in the environment on a behavioral and a neural level, in particular to energy rich (compared to low energy) foods. It has been demonstrated that the right posterior superior temporal sulcus (STS) is the only region exhibiting greater activation for high vs.
View Article and Find Full Text PDFThe focus of the present study is on the relationships between illusory and non-illusory auditory perception analyzed at a biological level. To this aim, we investigate neural mechanisms underlying the Deutsch's illusion, a condition in which both sound identity ("what") and origin ("where") are deceptively perceived. We recorded magnetoencephalogram from healthy subjects in three conditions: (a) listening to the acoustic sequence eliciting the illusion (ILL), (b) listening to a monaural acoustic sequence mimicking the illusory percept (MON), and (c) listening to an acoustic sequence similar to (a) but not eliciting the illusion (NIL).
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