Neurotechnology and AI Approach for Early Dementia Onset Biomarker from EEG in Emotional Stimulus Evaluation Task

2021 ◽  
Author(s):  
Tomasz M. Rutkowski ◽  
Masato S. Abe ◽  
Mihoko Otake-Matsuura
Keyword(s):  
Emotional Stimulus ◽  
Stimulus Evaluation ◽  
Evaluation Task ◽  
Early Dementia ◽  
Dementia Onset

Bipolar affective disorder and early dementia onset in a male patient with SHANK3 deletion

2012 ◽  
Vol 55 (11) ◽  
pp. 625-629 ◽  
Author(s):  
Ksenija Vucurovic ◽  
Emilie Landais ◽  
Cécile Delahaigue ◽  
Julien Eutrope ◽  
Anouck Schneider ◽  
...  
Keyword(s):  
Affective Disorder ◽  
Male Patient ◽  
Bipolar Affective Disorder ◽  
Early Dementia ◽  
Dementia Onset

Dissecting the Interplay Between Time of Dementia and Cognitive Profiles in Lewy Body Dementias

2021 ◽  
pp. 1-10
Author(s):  
Giovanni Palermo ◽  
Elisabetta Belli ◽  
Luca Tommasini ◽  
Riccardo Morganti ◽  
Daniela Frosini ◽  
...  
Keyword(s):  
Lewy Bodies ◽  
Time Interval ◽  
Cognitive Profiles ◽  
Semantic Fluency ◽  
Neuropsychological Profile ◽  
Language Tests ◽  
Early Dementia ◽  
Diagnosis Of Dementia ◽  
Dementia Onset ◽  
Neuropsychological Findings

Background: Dementia with Lewy bodies (DLB) and Parkinson’s disease dementia (PDD) are differentiated by the time of onset of cognitive and motor symptoms (‘1-year rule’). We explored the neuropsychological continuum of DLB and PDD subjects with different timing of dementia onset. Objective: Our aim was to compare the neuropsychological profile of DLB and PDD patients with different timing of dementia onset. Methods: Neuropsychological findings at the diagnosis of dementia of 66 PDD and 42 DLB patients were retrospectively compared. Patients with PDD were divided into three tertile subgroups according to the time interval between the onset of parkinsonism and dementia (N = 24, 2–4 years; N = 17, 5–7 years; N = 25 ≥8 years, respectively). Results: DLB patients performed worse on the Stroop and semantic fluency tests than PDD, even in comparison to PD with early dementia onset. No significant differences among PDD subgroups were reported. Conclusion: Executive and semantic language tests could differentiate DLB and PD patients with earlier development of dementia relative to parkinsonism.

Influence of Intermixed Emotion-Relevant Trials on the Affective Simon Effect

2008 ◽  
Vol 55 (6) ◽  
pp. 409-416 ◽  
Author(s):  
Yanmin Zhang ◽  
Robert W. Proctor
Keyword(s):  
Simon Effect ◽  
Simon Task ◽  
Emotional Stimulus ◽  
Stimulus Feature ◽  
Affective Valence ◽  
Vocal Responses ◽  
Compatible Mapping ◽  
Evaluation Task ◽  
Relevant Task ◽  
Manual Tasks

“Good” and “bad” vocal responses are faster when an irrelevant emotional stimulus feature corresponds with the response than when it does not, a phenomenon known as the affective Simon effect. Two experiments investigated how this effect was influenced by an intermixed emotion-relevant evaluation task. In Experiment 1, four schematic faces (friendly, happy, hostile, sad) were used for the affective Simon task and four different images (bird, heart, gun, ghost) for the evaluation task, whereas in Experiment 2 the schematic faces were used for both tasks. Mixed-compatible emotion-relevant trials increased the affective Simon effect in both experiments, but mixed-incompatible emotion-relevant trials did not influence it. Also, the advantage of the compatible mapping over the incompatible mapping increased in mixed conditions rather than decreased. These results differ from those obtained when visual-manual tasks for which location is relevant and irrelevant are mixed. They confirm that enhancement of the affective Simon effect when the Simon task is mixed with a compatible emotion-relevant task is due to increased salience of the affective valence.

scholarly journals Mere Exposure Effects on Implicit Stimulus Evaluation: The Moderating Role of Evaluation Task, Number of Stimulus Presentations, and Memory for Presentation Frequency

2018 ◽  
Vol 45 (3) ◽  
pp. 447-460 ◽  
Author(s):  
Pieter Van Dessel ◽  
Gaëtan Mertens ◽  
Colin Tucker Smith ◽  
Jan De Houwer
Keyword(s):  
Large Scale ◽  
Mere Exposure ◽  
Presentation Frequency ◽  
Priming Task ◽  
Stimulus Evaluation ◽  
Evaluation Task ◽  
Affect Misattribution Procedure ◽  
Evaluation Measure ◽  
Moderating Role

The mere exposure (ME) effect refers to the well-established finding that people evaluate a stimulus more positively after repeated exposure to it. So far, the vast majority of studies on ME effects have examined changes in explicit stimulus evaluation. We describe the results of three large-scale studies (combined N = 3,623) that examined ME effects on implicit stimulus evaluation. We looked at three moderators of these effects: the implicit evaluation measure, the number of stimulus presentations, and memory for presentation frequency. We observed ME effects on implicit stimulus evaluations as measured with an Implicit Association Test (IAT) and Affect Misattribution Procedure (AMP), but not an Evaluative Priming Task (EPT). ME effects were more robust when there were relatively few stimulus presentations and when participants had accurate memory for the presentation frequencies. We discuss how these findings relate to ME effects on explicit evaluations as well as theoretical and practical implications.

scholarly journals Racial/Ethnic Differences in Trajectories of Dementia Onset

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 751-752
Author(s):  
Sunshine Rote ◽  
Heehyul Moon
Keyword(s):  
Older Adults ◽  
Ethnic Differences ◽  
Early Dementia ◽  
Nationally Representative ◽  
Racial Ethnic ◽  
Early Late ◽  
Dementia Onset ◽  
Latino Older Adults ◽  
Black And Latino

Abstract Racial and ethnic minority older adults—especially non-Latino Black and Latino older adults—continue to have a higher prevalence of dementia with longer delays in formal diagnosis compared to non-Latino Whites. Few studies have estimated racial/ethnic differences in trajectories of dementia onset using nationally representative data with representation from the three largest racial/ethnic groups in the U.S.: non-Latino White, non-Latino Black, and Latino older adults. Additionally, given the delays in formal diagnosis we rely on a measure of probable dementia that takes into account both formal diagnosis and cognitive function. Data from the National Health and Aging Trend Study (NHATS, 2011–2019) reveals three trajectories of dementia onset (early, late, and dementia-free) and we find that Latino and Black older adults are at greater risk for early dementia onset compared to non-Latino Whites. Our next step is to explore the role of social function for dementia disparities.

Unterhaltungsrezeption als Gegenstand medienpsychologischer Emotionsforschung

2001 ◽  
Vol 13 (2) ◽  
pp. 62-72 ◽  
Author(s):  
Frank Schwab
Keyword(s):  
Uses And Gratifications ◽  
Stimulus Evaluation

Zusammenfassung. Der Beitrag unterscheidet Ansätze der Untersuchung der Unterhaltungsrezeption in explorative und theoriegeleitete. Der “Uses and Gratifications“-Ansatz sowie der Eskapismusansatz sind dem explorativen Vorgehen zuzuordnen. Theoriegeleitete Ansätze werden in erregungspsychologische Konzepte und in identitätsorientierte Konzepte unterteilt und durch eigene Überlegungen zu emotionspsychologischen Konzepten ergänzt. Es lässt sich verdeutlichen, dass die Auseinandersetzung mit Emotionen fruchtbar im Lichte der Evolution geführt werden kann. Proximate Erklärungsansätze der Unterhaltungsrezeption lassen sich am Beispiel des “Stimulus Evaluation Check“-Modells (SEC) der Emotionsgenese erörtern, während distale/ultimate Erklärungen mit dem Konzept “Evolvierter Psychischer Mechanismen“ (EPMs) am Beispiel der Funktionsanalyse positiver Emotionalität dargestellt werden. Ergänzend zum SEC-Modell wird neben der Berücksichtigung der Realitäts-Fiktions-Unterscheidung eine Differenzierung positiver Emotionalität in Freude, Interesse und Zufriedenheit vorgeschlagen. Diese Unterscheidungen führt der Beitrag aus einer evolutionspsychologischen Perspektive heraus ein. Die adaptive Funktion positiver Emotionalität liegt dabei in einer Erweiterung des Denk- und Handlungsraumes. Dies lässt sich ohne weiteres mit dem identitätsorientierten Ansatz der Unterhaltungsrezeption in Einklang bringen.

Estimating the Valence of Single Stimuli: A New Variant of the Affective Simon Task

2003 ◽  
Vol 50 (2) ◽  
pp. 86-96 ◽  
Author(s):  
Andreas Voß ◽  
Klaus Rothermund ◽  
Dirk Wentura
Keyword(s):  
Simon Task ◽  
Emotional Expressions ◽  
Evaluation Task ◽  
New Variant ◽  
Game Context

Abstract. In this article, a modified variant of the Affective Simon Task (AST; De Houwer & Eelen, 1998 ) is presented as a measure of implicit evaluations of single stimuli. In the AST, the words “good” or “bad” have to be given as responses depending on the color of the stimuli. The AST was combined with an evaluation task to increase the salience of the valence of the presented stimuli. Experiment 1 investigated evaluations of schematic faces showing emotional expressions. In Experiment 2 we measured the valence of artificial stimuli that acquired valence in a game context during the experiment. Both experiments confirm the validity of the modified AST. The results also revealed a dissociation between explicit and implicit evaluations.

Longevity After Dementia Onset Is Estimated

2008 ◽  
Vol 36 (3) ◽  
pp. 51
Author(s):  
JONATHAN GARDNER
Keyword(s):  
Dementia Onset

Pathological verbal repetition by Chinese elders with Dementia of Alzheimer’s Type

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Lin Zhu ◽  
Lihe Huang
Keyword(s):  
Cognitive Impairment ◽  
Nursing Staff ◽  
Systemic Functional Linguistics ◽  
Effective Communication ◽  
Linguistic Markers ◽  
Word Repetition ◽  
Functional Aspects ◽  
Early Dementia ◽  
Dementia Of Alzheimer’S Type ◽  
Verbal Repetition

Verbal repetition has been acknowledged as one of the most common symptoms in early Dementia of Alzheimer's Type (DAT). Despite previous attempts, the applicability of verbal repetition as an essential linguistic marker indicating this disease remains unexplored for Chinese DAT patients. This study collects Chinese DAT patients' daily conversation data to investigate both structural and functional aspects of pathological verbal repetition. Three major types are set regarding the cases of pathological repetition, respectively ‘unconscious concept repetition', ‘perseveration', and ‘involuntary word repetition'. The analysis focuses on what features these repetitions have from the perspective of ‘ideational function', ‘interpersonal function', and ‘textual function' within the framework of Systemic Functional Linguistics. A better understanding of pathological verbal repetition by DAT elders as the linguistic markers of cognitive impairment promotes effective communication between patients, nursing staff, and family members.

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