Age-related differences in metacognition for memory capacity and selectivity

ABSTRACT

Background: We compared two types of metacognitive monitoring in younger and older adults: metacognitive accuracy for their overall memory performance and their ability to selectively remember high-value information. Method: Participants studied words paired with point values and were asked to maximise their point score. In Experiment 1, they predicted how many words they would remember while in Experiment 2, they predicted how many points they would earn. Results: In Experiment 1, while younger adults were accurate in their predictions, older adults were overconfident in the number of words they would recall throughout the task. In Experiment 2, however, both younger and older adults were equally accurate when predicting the amount of points they would earn after some task experience. Conclusions: While younger adults may have higher metacognitive accuracy for their capacity, older adults can accurately assess their ability to selectively remember information, suggesting potentially separate metacognitive mechanisms that are differentially affected by aging.     

On the origin of functional differences in recollective experience

Abstract

Subjects studied target words that were repeated either immediately (lag0) or after six intervening items (lag6). At retention testing, subjects were required to discriminate targets from distractors and, contingent on a ‘yes' response, to classify each identified item as one that evoked either a ‘remember’ (R) response or a ‘know’ (K) response. An R response indicated recognition based on conscious recollection, and K, recognition without conscious recollection. R responses were significantly greater in lag6 than lag0 whereas the reverse was found for K responses. The data are interpreted as showing that R responses depend on the probability of a target stimulus engaging conscious effortful processing, whereas K responses are increased in the absence of conscious involvement at learning.     

Reasons for withdrawing belief in vivid autobiographical memories

Previous studies have shown that many people hold personal memories for events that they no longer believe occurred. This study examines the reasons that people provide for choosing to reduce autobiographical belief in vividly recollected autobiographical memories. A body of non-believed memories provided by 374 individuals was reviewed to develop a qualitatively derived categorisation system. The final scheme consisted of 8 major categories (in descending order of mention): social feedback, event plausibility, alternative attributions, general memory beliefs, internal event features, consistency with external evidence, views of self/others, personal motivation and numerous sub-categories. Independent raters coded the reports and judged the primary reason that each person provided for withdrawing belief. The nature of each category, frequency of category endorsement, category overlap and phenomenological ratings are presented, following which links to related literature and implications are discussed. This study documents that a wide variety of recollective and non-recollective sources of information influence decision-making about the occurrence of autobiographical events.     

An Ultra‐Realist Theory of Perception

In this paper I argue for a theory of perception distinct both from classical sense‐datum theories and from intentionalist theories, that is theories according to which one perceives external objects by dint of a relation with a propositional content. The alternative I propose completely rejects any representational element in perception. When one sees that an object has a property, the situation or state of affairs of its having that property is one's perception, so that the object and property are literally part of one's mind. The most obvious objection to this view is that it embodies a rampant form of idealism. It is argued to the contrary, via consideration of the metaphysics of situations, that the theory is entirely consistent with a robustly realist view of the world.     

Origins of george kelly's constructivism in the work of korzybski and moreno

Although Mahoney (1988) has traced the heritage of general constructive metatheory and 7 Lelhart and Jackson (1983) have examined the influences of Kelly's Kansas environment on his developing theory, there has been relatively little investigation of the origins of Kelly's constructivism. Although Kelly (1955) was undoubtedly influenced by many philosophers and psychologists as he developed the psychology of personal constructs, the roles of these people have not been extensively investigated. However, Kelly (1955, 1969) cited, in a general way, the works of Korzybski and Moreno several times in describing the origins of his theory. Lecture notes taken by one of Kelly's students (Barry, 1948) reveal more specifically the sources (Korzybski, 1933, 1943; Moreno, 1937) that seemed influential as Kelly developed his theories. Kelly borrowed ideas of Korzybski and Moreno, among many others, in creating parts of his role therapy and personality theory. In adapting Korzybski's notion that semantic and linguistic labels are used to understand phenomena in the world, Kelly also accepted the idea that these semantic labels are indeed constructed by individuals. In adapting Moreno's spontaneous improvisation and self-presentation techniques as a way to change semantic labels, Kelly emphasized that construction processes occur and change in a social realm.     

Childhood Physical Abuse and Sociopathy: Is This Link Magnified among Firstborn Children?

The Psychopathic Deviate scale of the Minnesota Multiphasic Personality Inventory–2 (MMPI–2) provides a valid psychometric index of sociopathic tendencies in both clinical and nonclinical samples. Childhood physical abuse has provided a robust predictor of sociopathic penchants. The link between childhood physical abuse and MMPI–2 Psychopathic Deviate scores was examined (N = 322) as a function of birth order. A significant childhood physical abuse by birth order interaction was found (p < .0001, η² = .62) with a 6-fold increase in relative risk of a Psychopathic Deviate elevation (T > 70) found for firstborn participants. Childhood physical abuse predicted Psychopathic Deviate scores for firstborn (r = .50, p < .0001, d = 1.15) and middle-born (r = .24, p = .006, d = .49) offspring. Harris–Lingoes subscale scores suggested firstborns felt selectively alienated from self and others in response to childhood physical abuse experiences.     

Fathers,Sons, and Aggression: A Path Model

This study developed and tested a path model that examined the purported relationships between college males’ perceptions of their fathers’ rejection and traditional masculine ideology endorsement, and their own self-reported aggression. The model included participants’ traditional masculine ideology endorsement, masculine gender role stress, self-esteem, shame-proneness, and anger as mediating variables. The results indicated that college-age males’ perceptions of their fathers as rejecting and hypermasculine predicted aggression in the final path model. There was also support for the mediating roles of the son’s traditional masculine ideology endorsement, masculine gender role stress, self-esteem, and anger. It is concluded that fathers could play an integral role in the development of male aggressive behavior. Implications and future research are discussed.     

Masturbation and the Media

This paper explores the important role the media play in informing young people about masturbation. A pilot study of focus groups with twenty-two young Australians aged between 14 and 16 explored what they know about sex and sexuality, and where they have found that knowledge. This paper reports on their knowledge about masturbation. Although researchers agree that masturbation can be a positive part of healthy sexual development, most young people reported that they received very little positive information about it from their parents or in formal sex education in school. These young people’s discussions around this topic were largely ambivalent, but also highly complex due to the varying levels and types of information that they receive. In this context the media play a vital role in providing information about masturbation through books and magazines for young women, and television comedies for young men.     

An analysis of letter expertise in a levels-of-categorization framework

While there has been increasing effort in dissociating the neural substrates recruited by perception of different objects, the theoretical and behavioural work needed to understand such dissociation lags behind. In an attempt to compare expertise in letter and face perception, we outline a theoretical framework that characterizes different types of object expertise based on the task demand (level of abstraction) required in object categorization. Face perception requires categorization at a subordinate level, whereas letter perception involves mainly basic-level categorization. Accordingly face and letter perception should represent two different types of expertise and display different neural and behavioural markers. Results from three behavioural experiments supported the predictions of the framework in that letter expertise is characterized by an enhancement of the basic-level advantage, instead of its attenuation as typically found for face perception. We compare this framework with Farah's taxonomy of visual abilities based on cooccurrence of deficits in visual agnosias.