Early awareness of death in normal child development

A first hand narrative report is used to trace the emergence of a concept of death in a normal male child between the ages of 21 and 36 months. The pattern at age 36 months was congruent with findings already described in the literature. Detailed observations from earlier months had not previously been reported.     

Working memory limitation as a source of confusion in the abstract THOG task

Limitations of working memory are proposed as a major determinant of problem difficulty in the THOG task. This task is a logical reasoning task which uses an exclusive disjunction and requires hypothetico-deductive reasoning. Four experiments with students of mathematics or psychology were used to test the hypotheses that, first, guiding participants' attention facilitates the task and, second, the use of paper and pencil as external problem representation reliefs working memory load. Focusing participants' attention upon a critical aspect of the task does not improve solution rates. Students of mathematics were better than students of psychology, but only if they were allowed to use paper and pencil or to work on the task repeatedly. These results partially support the working memory hypothesis. They point toward the importance of training and practice in relatively simple meta-cognitive skills in logical reasoning. Received: 20 March 2000 / Accepted: 22 January 2001     

Are the accessory facial movements of the stutterer learned behaviours?

The purpose of the present study was to explore the accessory nonverbal behaviours emitted by stutterers when their speech was fluent, normally disfluent, or stuttered. Subjects were 25 stutterers who were required to speak spontaneously for a 2-min. period. Seven types of nonverbal behavior were observed. Significant differences among the three speech categories were obtained for jaw movements, mouth movements, forehead movements, eyebrow movements, and head movements. Eyelid movements and eye blinks were nonsignificant. The results are discussed with respect to the various functions that can be attributed to nonverbal behaviour in stuttering.     

Possible decision-making preadaptations in the molly Poecilia sphenops

In many species females choose a mate from among several available males; in other species, the social system provides no apparent opportunity for making a decision among alternative suitors, and decision-making capacity is assumed to be minimal. The origins, bases, and logic of female mate choices are contentious questions with important cognitive implications. Female short-finned mollies, Poecilia sphenops, have never been observed to choose mates in the wild, where instead a male-contest social system prevails. Nevertheless they readily choose between models of males in the laboratory. Some of their decisions anticipate features found in males in more recently evolved species where the social system permits female choice. The willingness of females to choose traits in a species without such traits or evident need or opportunity for female choice in the wild is remarkable. These observations suggest that choice behavior can be latent in a species, and may direct or bias the development of behavioral preferences.     

Building blocks of idea generation and implementation in teams: A meta-analysis of team design and team creativity and innovation

Although organizations increasingly rely on teams to innovate, little systematic knowledge exists about how to design teams to do so. Building on the model of collaborative creativity and innovation and synthesizing findings from published and unpublished studies, this meta-analysis examines the role of team design on team creativity and innovation. We used random-effects meta-analysis to cumulate the correlations between different features of team design and team creativity or team innovation from 134 field studies representing 11,353 teams and 35 studies representing 2,485 student teams. We found that team tenure is curvilinearly related, autonomy-supportive leadership, task interdependence, and goal interdependence are positively related, and demographic diversity and team size are unrelated to team creativity and innovation. Examining meta-analytic path models, we found that task interdependence and supportive leadership positively relate to team creativity and innovation via team collaboration and team potency. In accounting for the literature, we found a dearth of studies examining team processes, some types of diversity such as racial diversity, and the role of team member turnover. We conclude by providing directions for future research and practical guidance about increasing team creativity and innovation through team design.     

Stimulus-response incompatibility eliminates inhibitory cueing effects with saccadic but not manual responses

There are thought to be two forms of inhibition of return (IOR) depending on whether the oculomotor system is activated or suppressed. When saccades are allowed, output-based IOR is generated, whereas input-based IOR arises when saccades are prohibited. In a series of 4 experiments, we mixed or blocked compatible and incompatible trials with saccadic or manual responses to investigate whether cueing effects would follow the same pattern as those observed with more traditional peripheral onsets and central arrows. In all experiments, an uninformative cue was displayed, followed by a cue-back stimulus that was either red or green, indicating whether a compatible or incompatible response was required. The results showed that IOR was indeed observed for compatible responses in all tasks, whereas IOR was eliminated for incompatible trials—but only with saccadic responses. These findings indicate that the dissociation between input- and output-based forms of IOR depends on more than just oculomotor activation, providing further support for the existence of an inhibitory cueing effect that is distinct to the manual response modality.     

Neurobiologie der Bipolar-1-Störung

Der Psychiater Dr. Alexander Neumeister betreibt an der Universit?t Yale Grundlagenforschung zur Beschreibung der Neurobiologie psychiatrischer Erkrankungen. Dabei gilt sein besonderes Augenmerk affektiven Erkrankungen, Angstst?rungen und der posttraumatischen Belastungsst?rung. Ein weiterer Schwerpunkt seiner Forschungst?tigkeit ist die Psychopharmakologie. Um neurochemische Prozesse im Gehirn zu beschreiben bedient sich Neumeister verschiedener bildgebender Verfahren, vor allem der Positronen-Emissions-To-mographie.     

Psychodynamische Diagnostik

The paper describes the development and objectives of psychoanalytic diagnostics. It shows that one of the key tasks of psychoanalytic/psychodynamic interviews is to initiate the doctor-patient relationship and that the patient’s motivation for treatment is to be examined and promoted in the interview. Different sources of information for the interview are then described; following a presentation of various systematic approaches of psychodynamic diagnostics, the principles of biographic history-taking are also explained. Modern psychodynamic diagnostics provides complex access to the patient, covering both elements of open interviewing and more exploratory approaches. Options for integrating these various methodological approaches are highlighted. Finally, more recent approaches in psychodynamic diagnostics that have a stronger relation to treatment planning are presented. These include the Structural Interview developed by Kernberg and Operationalised Psychodynamic Diagnostics (OPD).     

Grammatical and Phonological Influences on Word Order

ABSTRACT— During the grammatical encoding of spoken multiword utterances, various kinds of information must be used to determine the order of words. For example, whereas in adjective-noun utterances like "red car," word order can be determined on the basis of the word's grammatical class information, in noun-noun utterances like "… by car, bus, or …," word order cannot be determined on the basis of a word's grammatical class information. We investigated whether a word's phonological properties play a role in grammatical encoding. In four experiments, participants produced multiword utterances in which the words' onset phonology was manipulated. Phonological-onset relatedness yielded inhibitory effects in noun-noun utterances, no effects in noun-adjective utterances, and facilitatory effects in adjective-noun, noun-verb, and adjective-adjective-noun utterances. These results cannot be explained by differences in the stimulus displays used to elicit the utterances and suggest that grammatical encoding is sensitive to the phonological properties of words.