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At least 667 records · Page 37Linked to original sources
PubMed1998

Reconciling processing dynamics and personality dispositions.

Developments in personality-social psychology, in social cognition, and in cognitive neuroscience have led to an emerging conception of personality dynamics and dispositions that builds on diverse contributions from the past three decades. Recent findings demonstrating a previously neglected but basic type of personality stability allow a reconceptualization of classic issues in personality and social psychology. It reconstrues the nature and role of situations and links contextually sensitive processing dynamics to stable dispositions. It thus facilitates the reconciliation within a unitary framework of dispositional (trait) and processing (social cognitive-affective-dynamic) approaches that have long been separated. Given their history, however, the realization of this promise remains to be seen.

Cognitive Science↗
PubMed1998

Human abilities.

This chapter reviews recent literature, primarily from the 1990s, on human abilities. The review opens with a consideration of the question of what intelligence is, and then considers some of the major definitions of intelligence, as well as implicit theories of intelligence around the world. Next, the chapter considers cognitive approaches to intelligence, and then biological approaches. It proceeds to psychometric or traditional approaches to intelligence, and then to broad, recent approaches. The different approaches raise somewhat different questions, and hence produce somewhat different answers. They have in common, however, the attempt to understand what kinds of mechanisms lead some people to adapt to, select, and shape environments in ways that match particularly well the demands of those environments.

Aptitude↗
PubMed1998

Cognitive neuroscience of human memory.

Current knowledge is summarized about long-term memory systems of the human brain, with memory systems defined as specific neural networks that support specific mnemonic processes. The summary integrates convergent evidence from neuropsychological studies of patients with brain lesions and from functional neuroimaging studies using positron emission tomography (PET) or functional magnetic resonance imaging (fMRI). Evidence is reviewed about the specific roles of hippocampal and parahippocampal regions, the amygdala, the basal ganglia, and various neocortical areas in declarative memory. Evidence is also reviewed about which brain regions mediate specific kinds of procedural memory, including sensorimotor, perceptual, and cognitive skill learning; perceptual and conceptual repetition priming; and several forms of conditioning. Findings are discussed in terms of the functional neural architecture of normal memory, age-related changes in memory performance, and neurological conditions that affect memory such as amnesia. Alzheimer's disease, Parkinson's disease, and Huntington's disease.

Amnesia↗
PubMed2006

Measuring attachment representation in an FMRI environment: a pilot study.

This exploratory study is the first to examine the neural correlates of attachment status in adults. The study examined the feasibility of assessing attachment narratives in the functional magnetic resonance imaging (fMRI) environment by challenging subjects to tell attachment stories to specific attachment pictures from the Adult Attachment Projective (AAP) while being scanned. We investigated theoretically derived hypotheses regarding predicted differences in the brain activation patterns of individuals whose attachment status was organized (resolved) versus disorganized (unresolved) with respect to attachment trauma (e.g., as associated with loss through death, abuse, threat of abandonment). Adult attachment was assessed using the AAP, a new representational attachment measure that we thought might be suitable for use in the fMRI environment. This measure was used to obtain a preliminary picture of the neural processes associated with the activation of attachment in 11 healthy female adults. Results are reported from a second-level analysis (p < 0.001 uncorrected) and confirm that the AAP is a feasible measure for use in a neuroimaging environment. Cerebral activation during continuous speech yielded results consistent with the literature. Brain activation was demonstrated in expected visual and semantic brain regions. Furthermore, we found that the rate of articulation was positively correlated with activation in the right superior temporal gyrus. The results of theoretically derived attachment hypotheses showed no differences at the chosen level of significance when comparing the 'all attachment pictures' effect between both groups (resolved vs. unresolved). More interestingly, we found a significant interaction effect between the sequence of pictures and attachment category. Only the unresolved participants showed increasing activation of medial temporal regions, including the amygdala and the hippocampus, in the course of the AAP task. This pattern was demonstrated especially at the end of the AAP task where the pictures are drawn to portray traumatic situations. We interpret these results as confirming our hypothesis, linking unresolved attachment to emotional dysregulation of the attachment system. These results are discussed in relation to assessing attachment in an fMRI environment and future research in this area.

Adult↗
PubMed2005

Method matters: an empirical study of impact in cognitive neuroscience.

A major thrust of cognitive neuroscience is the elucidation of structure-function relationships in the human brain. Over the last several years, functional neuroimaging has risen in prominence relative to the lesion studies that formed the historical core of work in this field. These two methods have different strengths and weaknesses. Among these is a crucial difference in the nature of evidence each can provide. Lesion studies can provide evidence for necessity claims, whereas functional neuroimaging studies do not. We hypothesized that lesion studies will continue to have greater scientific impact even as the relative proportion of such studies in the cognitive neuroscience literature declines. Using methods drawn from systematic literature review, we identified a set of original cognitive neuroscience articles that employed either functional imaging or lesion techniques, published at one of two time points in the 1990s, and assessed the effect of the method used on each article's impact across the decade. Functional neuroimaging studies were cited three times more often than lesion studies throughout the time span we examined. This effect was in large part due to differences in the influence of the journals publishing the two methods; functional neuroimaging studies appeared disproportionately more often in higher impact journals. There were also differences in the degree to which articles using one method cited articles using the other method. Functional neuroimaging articles were less likely to include such cross-method citations.

Brain↗
PubMed1999

Interview with John Kaas.

Jon Kaas received a Ph.D. in Psychology with Irving Diamond at Duke University and completed a postdoctoral fellowship with Clinton Woolsey in neurophysiology at the University of Wisconsin, where he also collaborated with Ray Guillery. After 4 years as an Assistant Professor in Neurophysiology at Wisconsin, he moved to the Department of Psychology at Vanderbilt University where he is currently Centennial Professor. Awards include the Earl Sutherland Prize, Javits Neuroscience Investigator Award, Krieg Cortical Discoverer Award, and American Psychological Association Distinguished Scientific Contribution Award.

Animals↗
PubMed2000

White bears and other elusive intrusions. Assessing the relevance of thought suppression for obsessional phenomena.

According to recent research, deliberate suppression of unwanted thoughts may result in a paradoxical increase in their frequency. Recent cognitive-behavioral theories of obsessive-compulsive disorder now consider active thought suppression to be a crucial factor in the pathogenesis of obsessions. However, there are considerable inconsistencies in the results of studies investigating the thought suppression paradox that make it difficult to apply findings to obsessional problems. Furthermore, many studies have low ecological validity for obsessional problems. This article reviews the thought suppression research, discusses methodological issues relevant to application of the thought suppression paradox to obsessional problems, and offers recommendations for future research.

Affect↗
PubMed1996

Clinical decision making of experienced and novice nurses.

Decision making is an important daily nursing activity. Given contradictory past findings concerning the ease of use cognitive schema for reaching decisions among experts and novices, we chose to examine consistency of information as a parameter that may clarify the process of decision making. Ninety-two experienced nurses and 65 nursing students rated their decisional difficulty and levels of certainty in reaching a diagnosis for two scenarios: one including consistent information and one providing information that was partly inconsistent with the given diagnosis. For the consistent information, students showed more difficulty and less certainty in the given diagnosis than the experienced nurses. The inconsistent scenario was perceived as more difficult by nurses in comparison to students. The cognitive processes responsible for these results are discussed.

Adult↗
PubMed2004

Neuroethical considerations: cognitive liberty and converging technologies for improving human cognition.

Developers of NBIC (Nano-Bio-Info-Cogno) technologies face a multitude of obstacles, not the least of which is navigating the public ethics of their applied research. Biotechnologies have received widespread media attention and spawned heated interest in their perceived social implications. Now, in view of the rapidly expanding purview of neuroscience and the growing array of technologic developments capable of affecting or monitoring cognition, the emerging field of neuroethics calls for a consideration of the social and ethical implications of neuroscientific discoveries and trends. To negotiate the complex ethical issues at stake in new and emerging kinds of technologies for improving human cognition, we need to overcome political, disciplinary, and religious sectarianism. We need analytical models that protect values of personhood at the heart of a functional democracy-values that allow, as much as possible, for individual decision-making, despite transformations in our understanding and ability to manipulate cognitive processes. Addressing cognitive enhancement from the legal and ethical notion of "cognitive liberty" provides a powerful tool for assessing and encouraging NBIC developments.

Biomedical Enhancement↗
PubMed2002

Motivational versus social cognitive interventions for promoting fruit and vegetable intake and physical activity in African American adolescents.

Strategic self-presentation (motivational intervention [MI]) is a theoretical approach that is distinct from social cognitive theory (SCT). Specifically, strategic self-presentation involves increasing motivation by creating cognitive dissonance and inducing shifts in self-concept by generating positive coping strategies during a videotaped session. Fifty-three healthy African American adolescents were randomized to a SCT+MI, SCT-only, or an education-only group for increasing fruit and vegetable (F&V) intake and physical activity. The SCT+MI and SCT-only groups received a 12-week SCT program. Students in the SCT+MI group also participated in a strategic self-presentation videotape session. Participants completed 3-day food records, completed measures of self-concept and self-efficacy, and wore an activity monitor for 4 days at pre- and posttreatment. Both the SCT+MI (2.6 +/- 1.4 vs. 5.7 +/- 2.2, p < .05) and the SCT-only (2.5 +/- 1.2 vs. 4.8 +/- 2.4, p < .05) groups showed greater increases in F&V intake from pre- to posttreatment as compared with the education-only group (2.3 +/- 1.0, vs. 3.3 +/- 2.1, p > .05). There were no significant time or group effects for any of the physical activity measures. Correlation analyses revealed that only the SCT+MI group showed that dietary self-concept (r = .58, r = .67, p < .05) and dietary self-efficacy (r = .65, r = .85, p < .05) were significantly correlated with posttreatment F&V intake and change in F&V intake, respectively. These findings suggest that the change in F&V intake in the SCT+MI group resulted from strategic self-presentation, which induced positive shifts in self-concept and self-efficacy.

Adolescent↗
PubMed2001

Using cognitive theory to improve nurse practitioners' anticipatory guidance with contraceptive pill users.

Community health nurse practitioners are often the major contraceptive counselors who may use anticipatory guidance to help clients' use behaviors. Because pregnancy rates during typical use are much higher than during "perfect" use, more effective anticipatory guidance could help improve use behaviors. Principles of cognitive theory were used to explore the implications of specific words and approaches associated with discussing young adults' contraceptive use. Qualitative results are reported here, and potential implications are made for nurse practitioners' anticipatory guidance related to contraceptive use.

Adult↗
PubMed2004

Cosmetic neurology: the controversy over enhancing movement, mentation, and mood.

Advances in cognitive neuroscience and neuropharmacology are yielding exciting treatments for neurologic diseases. Many of these treatments are also likely to have uses for people without disease. Here, I review the ways in which medicine might make bodies and brains function better by modulating motor, cognitive, and affective systems. These potential "quality of life" interventions raise ethical concerns, some related to the individual and others related to society. Despite these concerns, I argue that major restraints on the development of cosmetic neurology are not likely. Neurologists and other clinicians are likely to encounter patient-consumers who view physicians as gatekeepers in their own pursuit of happiness.

Affect↗