Cognition and daily activities in a general population sample aged +55

ABSTRACT

Objective: We tested the association of individual cognitive domains measured with the Mini-Mental State Examination (MMSE) and disability.

Method: Cross-sectional study in a population-based cohort aged ≥55 years (n = 4,803). Sample was divided into two groups: individuals with cognition within the normal range (CNR) (n = 4,057) and those with cognitive impairment (CI) (n = 746). Main outcome measures: The MMSE, the Katz Index (Basic Activities of Daily Living, bADL), the Lawton and Brody Scale (Instrumental Activities of Daily Living, iADL), and the Geriatric Mental State (GMS-AGECAT).

Results: MMSE-orientation was associated with disability in bADL, iADL and a decrease in social participation, regardless of cognitive status. MMSE-attention was associated with disability in iADL, but only in CNR. MMSE-language was associated with disability in bADL, iADL and with reduced social participation, but only in CI. Conclusions: The associations observed between disability and orientation may have clinical and public health implications.     

The content and structure of laypeople's concept of pleasure

Five studies were conducted to map the content and structure of laypeople's conceptions of pleasure. Instances of the pleasure concept collected in Study 1 consisted predominantly of objects, events or persons described as sources of pleasure. Content analysis suggested that the pleasure category, like emotional response categories, might be formed at an implicit level where various pleasure antecedents are grouped based on common phenomenological qualities of the affective experience. Studies 2 and 3a showed that the pleasure category possesses a graded structure and fuzzy boundaries. Results further revealed that, either when explicitly presented with labels (Study 3b) or left to their own implicit categories during a sorting task (Study 4), laypeople represented pleasure as a hierarchical concept in which differentiated pleasure types (i.e., intellectual, emotional, social and physical) were subsumed under a higher level unitary form of pleasure. In this structure, unitary and differentiated pleasures shared a set of common affective qualities but were also distinguishable by unique and distinctive affective characteristics (Study 5). Ties to prior theories of pleasure and implications for decision making and behavioural research are discussed.     

Reflections on 30 years of Cognition & Emotion

ABSTRACT

The publication of the first issue of Cognition & Emotion in 1987 helped open the floodgates to what has become a golden age of emotion research in the social and biological sciences. In this article, I describe the intellectual landscape of that era and trace key developments that helped foster the growth of the field of affective science. Looking back from a present-day perspective, I offer some thoughts on the major changes that have occurred over the past three decades, the opportunities and challenges that lie ahead, and my own personal journey toward becoming an affective scientist (which largely occurred during this period). Finally, I offer three considerations that might be helpful for young researchers who are already in the field of affective science or are considering entering it.     

Belief in reasoning

Reasoning has three types, deduction, induction, and abduction, of which we perceive deduction to be necessarily true, induction plausibly true, and abduction only hypothetically true. Syllogistic is a theory of deductive reasoning, introducing three figures of inferencing, of which figure-1 is obviously true, figure-3 and figure-2 are increasingly less transparent. We argue that the three figures of syllogistic and the three types of reasoning are related and their truth perceptions can be explained as different degrees of belief. We suggest that the source of this difference can be found in the conversion of a premise required by syllogistic processing. Experimental results illustrating our theory are included.     

Cognition and emotion: a plea for theory

ABSTRACT

Research on cognition and emotion during the past 30 years has made reasonable progress in theory, methods and empirical research. New theories of the cognition–emotion relation have been proposed, emotion research has become more interdisciplinary, and improved methods of emotion measurement have been developed. On the empirical side, the main achievement of the past 30 years is seen to consist in the reduction of the set of serious contenders for a theory of emotions. Still, several important issues are not fully resolved, including the computational implementation of appraisal processes, the nature of emotions, and the link between emotions and actions. Also, quantitative theories of the cognition–emotion relation need to be refined and tested, and improved theories of the link between emotions and bodily and facial expressions need to be developed. To counter the dangers of theoretical fragmentation and knowledge loss, more efforts should be devoted to the analysis, reconstruction, comparison and integration of important theories and hypotheses in the field of emotion, as well as to the systematization of arguments in favor and against these theories and hypotheses.     

A model for personality at three levels

People differ. How and why they differ are the fundamental questions for personality psychologists. In this article we address three levels at which people differ: within individuals, between individuals, and between groups of individuals. A dynamic model of personality is considered where traits are seen as rates of change in states in response to environmental cues. Within individuals, motivational and behavioral states show inertial properties and lead to an analysis of rates of change and latencies of behavior. Between individuals, the analysis is one of frequency and duration of choices. When individuals self select into groups reflecting shared interests and abilities, the structure of these group differences reflects the consequences of the self selection. Examples of the dynamic model are given for each level of analysis.     

The role of analogy in ontology alignment: A study on LISA

Ontologies are explicit specifications of concepts and their relationships. In the context of a semantic web of independently developed ontologies, overcoming interoperability and heterogeneity issues is of considerable importance. Many semantic web applications, such as matching of instances in social networks, reasoning over combined knowledge bases, and knowledge sharing among services, rely on ontology alignment. While existing research in this area has developed a wide range of different heuristics, in this paper we propose to look towards cognitive science, specifically analogical reasoning, to support ontology alignment. We investigate the question whether ontology alignment is rooted in the same cognitive process as analogical reasoning. We apply the LISA system, a cognitively-based model of human analogical reasoning, to ontology alignment and present a comprehensive experimental study to determine its performance on ontology alignment problems.