Nonsense Syllables in Associative Recognition Tasks: Implications for Global Memory Models

1998 ◽  
Vol 82 (1) ◽  
pp. 95-105
Author(s):  
Michael P. Kaschak ◽  
Carl J. Charnetski
Keyword(s):  
Recognition Task ◽  
Empirical Support ◽  
Memory Models ◽  
Associative Recognition ◽  
Global Memory ◽  
Superior Performance ◽  
Common Component ◽  
List Length Effect ◽  
Nonsense Syllables

Recent research into global memory models has focused on gaining empirical support for the predictions these models make. Clark and his colleagues produced no conditions in which a test item and a distractor shared a common component within a number of experiments using an associative recognition task and have reasoned that recall might play a role in the task. This experiment used nonsense syllables to reduce further the role of recall in the associative recognition task and produce the predicted advantage from overlap. The manipulations produced equal performance between test conditions (overlapping vs nonoverlapping) and superior performance on a long list versus a short list, i.e., a negative list-length effect. The implications of these findings for various global memory models are discussed.

Ups and downs on the roller coaster of task conflict: the role of group cognitive complexity, collective emotional intelligence and team creativity

2020 ◽  
Vol 18 (1) ◽  
pp. 23-37
Author(s):  
Andreea Gheorghe ◽  
Oana Fodor ◽  
Anișoara Pavelea
Keyword(s):  
Emotional Intelligence ◽  
Cognitive Complexity ◽  
Empirical Support ◽  
Task Conflict ◽  
Team Creativity ◽  
Mediating Role ◽  
Low Levels ◽  
Explanatory Mechanism ◽  
The Relationship

This study explores the association between task conflict and team creativity and the role of group cognitive complexity (GCC) as a potential explanatory mechanism in a sample of 159 students organized in 49 groups. Moreover, we analyzed the moderating effect of collective emotional intelligence (CEI)in the relationship between task conflict and GCC.As hypothesized, we found that task conflict has a nonlinear relationship with GCC, but contrary to our expectations, it follows a U-shaped association, not an inversed U-shape. In addition,the moderating role of CEI was significant only at low levels. Contrary to our expectation, the mediating role of GCC did not receive empirical support. Theoretical and practical contributions are discussed.

The Affiliative Role of Empathy in Everyday Interpersonal Interactions

2019 ◽  
Author(s):  
Whitney R. Ringwald ◽  
Aidan G.C. Wright
Keyword(s):  
Individual Differences ◽  
Structural Equation ◽  
Community Sample ◽  
Empirical Support ◽  
Interpersonal Behavior ◽  
Equation Modeling ◽  
Experimental Conditions ◽  
Student Sample ◽  
Ecological Momentary

Empathy theoretically serves an affiliative interpersonal function by satisfying motives for intimacy and union with others. Accordingly, empathy is expected to vary depending on the situation. Inconsistent empirical support for empathy’s affiliative role may be due to methodology focused on individual differences in empathy or differences between controlled experimental conditions, which fail to capture its dynamic and interpersonal nature. To address these shortcomings, we used ecological momentary assessment to establish typical patterns of empathy across everyday interactions. Associations among empathy, affect, and interpersonal behavior of self and interaction partner were examined in a student sample (N=330), then replicated in a pre-registered community sample (N=279). Multi-level structural equation modeling was used to distinguish individual differences in empathy from interaction-level effects. Results show people are more empathetic during positively-valanced interactions with others perceived as warm and when expressing warmth. By confirming the typically affiliative role of empathy, existing research to the contrary can be best understood as exceptions to the norm.

scholarly journals Political Institutions and Coups in Dictatorships

2021 ◽  
pp. 001041402199716
Author(s):  
Nam Kyu Kim ◽  
Jun Koga Sudduth
Keyword(s):  
Empirical Analysis ◽  
Political Institutions ◽  
Empirical Support ◽  
Democratic Institutions ◽  
The Creation

Does the creation of nominally democratic institutions help dictators stay in power by diminishing the risk of coups? We posit that the effectiveness of political institutions in deterring coups crucially depends on the types of plotters and their political goals. By providing a means to address the ruling coalition’s primary concerns about a dictator’s opportunism or incompetence, institutions reduce the necessity of reshuffling coups, in which the ruling coalition replaces an incumbent leader but keeps the regime intact. However, such institutions do not diminish the risk of regime-changing coups, because the plotters’ goals of overthrowing the entire regime and changing the group of ruling coalition are not achievable via activities within the institutions. Our empirical analysis provides strong empirical support for our expectations. Our findings highlight that the role of “democratic” institutions in deterring coups is rather limited as it only applies to less than 38% of coup attempts.

In retrospect: The influence of chief executive officers’ historical relative pay on overconfidence

2021 ◽  
pp. 147612702110048
Author(s):  
J Daniel Zyung ◽  
Wei Shi
Keyword(s):  
Chief Executive Officers ◽  
Empirical Support ◽  
Chief Executive ◽  
Firm Level ◽  
Self Confidence ◽  
Self Worth ◽  
Executive Officers ◽  
Leadership Research ◽  
The Relationship

This study proposes that chief executive officers who have received over their tenure a greater sum of total compensation relative to the market’s going rate become overconfident. We posit that this happens because historically overpaid chief executive officers perceive greater self-worth to the firm whereby such self-serving attribution inflates their level of self-confidence. We also identify chief executive officer- and firm-level cues that can influence the relationship between chief executive officers’ historical relative pay and their overconfidence, suggesting that chief executive officers’ perceived self-worth is more pronounced when chief executive officers possess less power and when their firm’s performance has improved upon their historical aspirations. Using a sample of 1185 firms and their chief executive officers during the years 2000–2016, we find empirical support for our predictions. Findings from this study contribute to strategic leadership research by highlighting the important role of executives’ compensation in creating overconfidence.

scholarly journals Utilization of Eco-Friendly Waste Generated Nanomaterials in Water-Based Drilling Fluids; State of the Art Review

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4171
Author(s):  
Rabia Ikram ◽  
Badrul Mohamed Jan ◽  
Akhmal Sidek ◽  
George Kenanakis
Keyword(s):  
State Of The Art ◽  
Superior Performance ◽  
Future Research ◽  
Drilling Fluids ◽  
Drill Cuttings ◽  
Environmental Friendly ◽  
Water Based ◽  
Drilling Operations ◽  
Filtration Properties

An important aspect of hydrocarbon drilling is the usage of drilling fluids, which remove drill cuttings and stabilize the wellbore to provide better filtration. To stabilize these properties, several additives are used in drilling fluids that provide satisfactory rheological and filtration properties. However, commonly used additives are environmentally hazardous; when drilling fluids are disposed after drilling operations, they are discarded with the drill cuttings and additives into water sources and causes unwanted pollution. Therefore, these additives should be substituted with additives that are environmental friendly and provide superior performance. In this regard, biodegradable additives are required for future research. This review investigates the role of various bio-wastes as potential additives to be used in water-based drilling fluids. Furthermore, utilization of these waste-derived nanomaterials is summarized for rheology and lubricity tests. Finally, sufficient rheological and filtration examinations were carried out on water-based drilling fluids to evaluate the effect of wastes as additives on the performance of drilling fluids.

The role of PKMζ in the maintenance of long-term memory: a review

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamish Patel ◽  
Reza Zamani
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Long Term Potentiation ◽  
Global Memory ◽  
Long Term Memory ◽  
Compensatory Mechanism ◽  
Term Memory ◽  
Kinase C

Abstract Long-term memories are thought to be stored in neurones and synapses that undergo physical changes, such as long-term potentiation (LTP), and these changes can be maintained for long periods of time. A candidate enzyme for the maintenance of LTP is protein kinase M zeta (PKMζ), a constitutively active protein kinase C isoform that is elevated during LTP and long-term memory maintenance. This paper reviews the evidence and controversies surrounding the role of PKMζ in the maintenance of long-term memory. PKMζ maintains synaptic potentiation by preventing AMPA receptor endocytosis and promoting stabilisation of dendritic spine growth. Inhibition of PKMζ, with zeta-inhibitory peptide (ZIP), can reverse LTP and impair established long-term memories. However, a deficit of memory retrieval cannot be ruled out. Furthermore, ZIP, and in high enough doses the control peptide scrambled ZIP, was recently shown to be neurotoxic, which may explain some of the effects of ZIP on memory impairment. PKMζ knockout mice show normal learning and memory. However, this is likely due to compensation by protein-kinase C iota/lambda (PKCι/λ), which is normally responsible for induction of LTP. It is not clear how, or if, this compensatory mechanism is activated under normal conditions. Future research should utilise inducible PKMζ knockdown in adult rodents to investigate whether PKMζ maintains memory in specific parts of the brain, or if it represents a global memory maintenance molecule. These insights may inform future therapeutic targets for disorders of memory loss.

Does Customer Experience Always Benefit Company? Examining Customers’ Epistemic Motivation and Interaction With Service Contexts

2021 ◽  
pp. 183933492199886
Author(s):  
Vu Thi Mai Chi ◽  
Widya Paramita ◽  
Tran Ha Minh Quan
Keyword(s):  
Social Identity Theory ◽  
Empirical Support ◽  
Customer Experience ◽  
Customer Engagement ◽  
Survey Method ◽  
Epistemic Motivation ◽  
Engagement Behavior ◽  
Company Identification ◽  
Employee Identification

The main purpose of this study is explaining how and when customer experience benefits the company. Built upon social identity theory, we propose that customer experience leads to customer engagement behavior, via two routes: customer-company and customer-employee identification. Furthermore, we advance that customers’ epistemic motivation negatively moderates the mediated effect of customer experience on customer engagement behavior. We ran two studies to validate the measurement of customer experience and to test our hypotheses. For the two studies, we employed a survey method by recruiting consumers of beauty salons in Vietnam. The results demonstrated that EXQ as a measurement for customer experience is applicable to the context of the study and provided empirical support for the hypotheses. Such as, this research found that customer experience positively influences customer engagement behavior as mediated by customer-company and customer-employee identification. Furthermore, this research revealed that customer epistemic motivation negatively moderates the mediated effect of customer experience on customer engagement behavior via customer-employee identification. However, the moderating role of customer epistemic motivation is insignificant for the mediated relationship via customer-company identification. Finally, this research offers theoretical and practical contributions that are elaborated and further discussed.

scholarly journals Anxiety as a risk factor for cardiovascular disease independent of depression: A narrative review of current status and conflicting findings

2021 ◽  
Vol 8 (1) ◽  
pp. 205510292098746
Author(s):  
Håvard R Karlsen ◽  
Florian Matejschek ◽  
Ingvild Saksvik-Lehouillier ◽  
Eva Langvik
Keyword(s):  
Cardiovascular Disease ◽  
Risk Factor ◽  
Study Design ◽  
Empirical Support ◽  
Narrative Review ◽  
Current Status ◽  
Depression And Anxiety ◽  
Evidential Support ◽  
Meta Analyses

The aim of this paper is to summarise and evaluate the empirical support for the association between anxiety and cardiovascular disease (CVD) and to address challenges related to method and study design. We review results from meta-analyses and more recent findings on the association of anxiety and the risk of CVD. Depression and anxiety are often listed as psychosocial risk markers of CVD, but the role of anxiety as a risk factor for CVD has not received the same evidential support as the effects of depression. Through a narrative review we identified six meta-analyses as well as 15 recent large studies of anxiety and CVD that we summarise. Some of the conflicting findings may be artefacts of study design or population the sample is drawn from. Researchers should take care to be population specific, measurement specific and outcome specific, and to control for comorbid depression.

scholarly journals The role of salient beliefs in graduates’ intention to apply

2015 ◽  
Vol 41 (1) ◽  
Author(s):  
Samantha Adams ◽  
François De Kock
Keyword(s):  
Empirical Support ◽  
Behavioural Control ◽  
Control Beliefs ◽  
Future Research ◽  
Research Approach ◽  
Application Process ◽  
Perceived Behavioural Control ◽  
Latent Variable Analysis ◽  
Study Results

Orientation: Organisations compete fiercely to recruit the best graduates, because they consider them a rich source of future talent. In the recruitment literature, it has become increasingly important to understand the factors that influence graduate applicant intentions. Research purpose: Drawing on the theory of planned behaviour (TPB), we tested a model proposing that applicant intention is a function of their attitude towards applying, beliefs about referent other’s expectations (subjective norms) and perceived behavioural control with respect to this behaviour.Motivation for the study: The study was motivated by the need to shed light on graduate applicants’ decisions to apply to an organisation of their choice. Research approach, design and method: The study used a quantitative design to test hypotheses that attitudes towards behaviour, norms and control beliefs would influence intention to apply. We surveyed prospective job seekers (N = 854) studying at a South African university about their beliefs regarding the job application process. Main findings: Structural equation modelling showed reasonable fit of the proposed model to the survey data. Latent variable analysis demonstrated that perceived behavioural control and subjective norm explained intention to apply. With the combination of all three variables, only attitude towards applying did not play a significant role in the prediction of intention to apply, which is contrary to previous research. Practical/managerial implications: The findings highlight the role of salient control beliefs in the application process. Efforts by universities and organisations to affect intentions to apply may potentially benefit from focusing on support services that could enhance feelings of control and minimise perceived obstacles. Recruiters could focus on control to increase potential recruitment pools. Contribution/value-add: The study contributes to the recruitment literature in three ways. Firstly, TPB is shown to be a useful framework to explain graduate applicants’ intention to apply, as this theoretical model found empirical support. In doing so, the present study advances our understanding of how graduates’ intentions to apply are formed. Secondly, the results showed that applicants’ control and normative beliefs dominate when considering applying. Lastly, the study results open up interesting avenues for future research on applicant intentions.

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