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In this study, we examined the relationship between trait-like communication apprehension (CA) and resting alpha range asymmetry in the anterior cortex (AC). Although theory and research in cognitive neuroscience suggest that asymmetry in the AC constitutes a relatively stable, inborn, substrate of emotion, some studies indicate that asymmetry can be increased by experimentally induced transitory anxiety. Transitory anxiety produced by interaction with strangers covaries with trait-like CA, raising questions regarding whether asymmetrical electrical activity in the AC during data collection represents resting levels as assumed in the literature or transitory reactions to dyadic interaction with the experimenter. Because the question if unanswered poses issues for theory and approaches to remediation, we computed correlations among alpha range asymmetry in the AC gathered by electroencephalograph (EEG) while participants were at rest, transitory anxiety scores referring to the participants' interactions with the experimenter, and CA scores gathered four weeks earlier. Results revealed a partial correlation based on disattenuated correlations, r=0.51, p less than 0.05, between CA and EEG scores when the effects of transitory anxiety due to participant-experimenter interaction were removed. (Contains 5 notes and 2 tables.)

A substantial body of scholarship focused on the processes involved in message planning has accumulated in the communication literature. One of the central tenets of memory models upon which most of the message planning models are based is that dynamic memory systems organize and reorganize knowledge structures to maximize information processing efficiency. Accordingly, efficiency can be achieved by merely retrieving and enacting plans that have achieved goals previously under similar conditions. Plan failure, however, requires alteration or even production of an original plan. Although researchers have relied exclusively on output (e.g., response latency, memory tests) to draw inferences about planning processes, it is possible to observe cognitive processes more directly by measuring cortical responses. In the present study, electrical activity was monitored in the region of the dorsolateral prefrontal cortex during verbal planning. Results indicated that (a) electrical activity while planning under conditions that permitted enactment of verbal plans that required no modification was significantly lower than during planning in the initial trial but, (b) electrical activity while planning under conditions in which previous efforts failed was significantly higher than during planning in the initial trial. These results provide physical evidence for the hypothetical cognitive processes proposed in the cognitivist models of routine formation.

Examines the relationship between H. Eysenck's personality dimensions (extraversion, neuroticsm, and psychoticism) and communication variables, in three separate studies encompassing more than a dozen communication variables. Finds consistent patterns across the three studies. (SR)

Contends that communication apprehension represents individuals' expression of inborn, biological functioning, antecedent to social experience and therefore independent of social learning processes. Presents a temperament-based conceptualization of communication apprehension; integrates neurologically-based temperament functions into three fundamental propositions based on communication apprehension research; and discusses the implications of this theoretical position. (SR)

It has long been recognized in the nonverbal communication literature that individual differences in extraversion are expected to be most clearly evident in expressive forms of nonverbal behavior. Although several studies designed to examine the correlation between extraversion and nonverbal behavior have been conducted, most attempts to summarize these studies reflect the inconsistent nature of the research findings. Indeed, correlations range from--.36 to .73. The extant literature summaries are limited to narrative reviews, however, which tend to be highly selective. The purpose of this study was to meta-analyze the relevant studies. Results indicated that the mean correlation coefficient weighted for sample size was .13 for the entire sample of studies. Although 63% of the variance was attributable to sampling error, the distribution of correlations was heterogeneous. The remaining variance was due to two methodological artifacts: sample size and the number of nonverbal behaviors coded. For example, hierarchical breakdowns by moderator indicated that the mean correlation was .50 for highly focused studies--those in which researchers concentrated on a few behaviors and limited coding to 40 or fewer subjects. A cognitive-overload model for these findings is offered and corroborated by findings from other research domains. Implications for communication research and theory are discussed. In addition to clarifying the empirical relationship [TEXT INCOMPLETE IN ORIGINAL SOURCE]

This study was undertaken to examine whether the relationships reported in the communication literature between Eysenck's BIG THREE personality dimensions and self-reported patterns of communication behavior remain robust when observation-based measures are used in place of self-reports. Target participants' responses to measures of these three personality dimensions were used to predict peer ratings of two patterns of communication behavior, verbal aggressiveness and affinity-seeking competence. Composite measures for variables were based on the results of confirmatory factor analysis, ensuring both internal and external consistency (parallelism). Results of a path analysis, in which targets' responses to personality measures were employed as exogenous variables and peer ratings of verbal aggressiveness and affinity-seeking competence were used as endogenous variables indicated that these data fit the model extremely well. Importantly, (1) substantial variation in peer rated affinity-seeking competence (R = .55) was attributed to the direct effects of extraversion and neuroticism (negative coefficient), and (2) substantial variation of peer rated verbal aggressiveness (R = .58) was attributable to direct effects of psychoticism and extraversion (negative coefficient) and an indirect effect of extraversion and neuroticism mediated by affinity-seeking competence (negative coefficient). Implications for communication theory and research are discussed.

Electroencephalographic (EEG) analysis allows measurement of electrical activity in bundles of neurons around electrodes placed at various locations on the scalp. In this essay, we provide an overview of the biological basis of EEG methodology and outline basic principles and practices of data collection. We conducted a study using EEG to test expectations from two competing cognitive theories of communication—computational theory and dynamic memory theory. Participants (N= 30) were assigned to one of two conditions—routine talk and direction-giving. EEG was used to measure the electrical activity in the dorsolateral prefrontal cortex (DLPFC), an area of the brain that is associated with message production. Results indicated that DLPFC activity was far more suggestive of dynamic memory theory. Specifically, electrical activity in the DLPFC was significantly lower during routine talk than during direction-giving. We discuss the implications of our findings and the limitations of EEG methods in communication research. [ABSTRACT FROM PUBLISHER]

Formulating cognitive representations of others' mental states when interpreting behavior (i.e., 'theory of mind') rather than merely focusing on the behavior is considered a distinctly human trait which both interpersonal scholars and cognitive neuroscientists agree plays a critical role in the development and maintenance of social relationships. Although brain-imaging studies have led to huge advances in the understanding of memory and language, theories of social relationships remain relatively uninformed by cognitive neuroscience. In the present study, hypotheses regarding the implementation of theory of mind in a relationship context are (a) derived from extant theory and research, and (b) tested via brain-imaging technology. Specifically, spectrum analyses were conducted using brain wave recordings collected by an electroencephalograph (EEG) monitoring oscillations in the gamma range for the orbitofrontal and dorsolateral prefrontal cortices while participants attempted to construct cognitive representations regarding a friend's request refusal. Results indicated statistically greater electrical activity in both cortical regions for participants engaged in the task than for participants in the control condition. The implications of the findings for building a fully elaborated sequential process model of cognitive representations in interpersonal contexts, among other theoretical endeavors, are discussed. [ABSTRACT FROM AUTHOR]

Two studies are reported which sought to determine the possible limitations of the proposition that "temperament is manifest through communication." The results of earlier studies suggest that many communication related traits indeed are correlated with one or more temperament variables. In the present study Willingness to Communicate, Singing Apprehension, and Innovativeness were found to be associated with one or more of the BIG THREE temperament variables. Writing apprehension was found to have no meaningful relationship with any of the temperament variables. It is concluded that, while most important oral communication traits probably are correlated with one or more temperament traits, some other communication traits, like writing apprehension, may not be. [ABSTRACT FROM AUTHOR]

Presents information on a study which examined the relationships of physician socio-communicative style variables with patients' perceptions of physicians' credibility and patients' satisfaction with their physician and the quality of medical care received. Background of the study; Methodology of the study; Results and discussion.

Presents an analysis of studies of twins related to constructs cited in the communication literature and explores the implications of the twins literature for communication theory and research. Correlations for the heritability estimates, shared environmental effects and nonshared environmental effects; Effects of correction for attenuation; Examination of the distribution of heritability estimates.

Deals with a study which assessed the relationship between a students' trait communication apprehension with their motives for communicating with their instructors. Method; Results; Discussion.

Focuses on a study which examined the relationships between the nonverbal immediacy of physicians and their patients' satisfaction with them as doctors and overall medical care. Overview of the study population; Data and methods used; Findings.

Proposes a model for communibiological research. Concept of communibiology; Information on the dimensional structures of personality traits; Correlations of communication apprehension with introversion and extroversion; Elements of the model for communibiological research; Analysis of shyness and teacher immediacy.

Explores the influence of receiving verbally aggressive messages in computer-mediated decision making. Involvement of self-concept in verbally aggressive communication; Perception of the task as less favorable; Impact of verbal aggressive communication in decision making.