Complexity Theory: Predictions Based on the Confluence of Science-Wide and Behavioral Theories

Views of behavioral and science wide complexity theories are briefly summarized. Theory-based predictions for human cognition and behavior based on both theories are advanced.
Streufert (in this special issue) has discussed the confluence of science-wide and behavioral complexity theory. Even though the former attempts to find common processes in all the sciences and the latter theory has, to date, limited itself to human behavior, there are many similarities in approach and in explanations of observed phenomena. Differences between the two theories are minor in comparison to their commonalities. Considering the many similarities, it may be useful to confirm (and possibly extend) behavioral complexity theory. A number of theorems, many familiar, some slightly modified, some new, will be provided at the end of this paper.     

Graphic Representations of Processing Structure: The Time-Event Matrix

Science-wide complexity theory presents strange attractors as lawful outcomes of nonlinear functions. The time-event matrices used by Streufert and associates to depict human information processing in complex task environments have similar characteristics. The use and construction of these matrices is described. The technique may be useful across sciences to depict the consequences of complex phenomena.     

Dyadic interactions in accepted and rejected children

Forty same-sex dyads were separated into three groups (accepted, rejected, and mixed status) on the basis of their scores on the likability and rejection scales of the Pupil Evaluation Inventory [Pekarik, E.,et al. (1976).Journal of Abnormal Child Psychology, 4, 83–97]. These dyads participated in a 10-min videotaped interaction which was separated into three segments: waiting period, cooperative task, and conversational period. Observational recordings of six micro behaviors (talk time, gestures, gaze, smiles, orientation, and laughs), as well as ratings of physical attractiveness and speech volume (loudness) and observational counts of cooperation were obtained from these tapes. These data were subjected to a 2 (sex) × 3 (status) × 3 (segment) MANOVA, with sex and status as between-group factors and segment as a within-group factor. The results indicated a number of significant multivariate effects. Univariate tests for attractiveness, speech volume, and cooperation measures indicated a significant status effect for the variable of intensity. These results are interpreted in terms of the developmental literature on social behavior, as well as the data on face-to-face interactions provided by S. D. Duncan and D. W. Fiske [(1977).Face to face interaction: Research methods, and theory. Hillsdale, NJ: Erlbaum]. Suggestions for future research are offered.The authors wish to thank the principals, parents and children of Clinton Central Elementary, Frontier Elementary, and Western Elementary Schools for their help and participation in this project. We would also like to express our gratitude to Judith Conger, Patricia Moisan-Thomas, Judith Dygdon, and all other members of the research team who contributed their time and effort to this project.     

Commentary on “The Family Crucible”

InThe Family Crucible, a recent book that is highly popular and widely praised among mental health professionals, Napier and Whitaker (1978) describe their treatment of a family. The therapy is well done; their therapeutic approach is certainly one which many family therapists will approve; and the book is well-written and exciting to read. Nevertheless, it seems to us that the widespread approval which the book has received raises many questions about the field of family therapy itself, which it is the purpose of this article to examine.     

The Donor's Dilemma: Recipient's Reactions to Aid from Friend or Foe1

Subjects participating as decision-makers in the Tactical and Negotiations Game experimental simulation encountered a programed emergency and then received an offer of aid from either an ally or an enemy donor. Findings indicate that recipients of aid from an ally donor perceived the donor to be more positively motivated and perceived the aid to reflect greater effort and to be of greater value than recipients of an equal amount of aid from an enemy donor. In addition, aid from an ally precipitated a positive shift in recipient perceptions of the donor and a negative shift in recipient perceptions of the enemy nondonor, while aid from an enemy had essentially no effects. The applied implications of these findings are discussed.     

Information search and the effects of failure: A test of complexity theory

The effects of increasing failure and the structural complexity of decision-making teams on four aspects of information search and utilization were examined. Twenty-four structurally homogeneous dyads and 12 unselected control dyads served as Ss in a complex experimental simulation running for six 30-min periods. Information load was held constant at 7 inputs per period. The proportion of failure inputs was sequentially increased from 1:7 in period 1 through 6:7 in period 6. Dyads in the control condition were not exposed to failure. It was found that structurally simple Ss engaged in more delegated information search than complex Ss. Self-initiated information search initially increased, then remained fairly constant at higher proportions of failure. Contrary to expectations, no differences were found between simple and complex Ss in self-initiated search. Complex dyads exceeded simple dyads on two measures of information utilization. The number of search moves used in integrative decisions produced an inverted U-shaped curve with optimal levels at moderate proportions of failure. Efficiency of information utilization showed a general decrease as failure increased. The data produced limited support for complexity theory and did support, where applicable, the information search theories of Lanzetta and Feather.     

Analgesia induced by exposure to a novel environment in rats: effect of concurrent and post-training stressful stimulation

Exposure of rats for 2 min to a new environment (a 50 X 25 X 25-cm box) induced a mild analgesia measured by the tail-flick method. Additional stressful stimuli (0.5 mA, 1.5-s footshocks, light flashes, or tones) presented during the 2-min exposure did not alter the analgesia. However, the postexposure presentation of light flashes or tones, for either 10 s or 2 min, while the animals were alone in a waiting cage, prevented the analgesic response. Similarly, placing the subjects with their conspecifics in the home cage for 2 min after the exposure prevented the analgesic response. The data suggest that the analgesia may represent a physiological correlate of novelty and that the response can be impaired by post-training treatments.     

Differential reinforcement of lever-press durations: Effects of deprivation level and reward magnitude

Three experiments investigated the performance of rats on a task involving differential reinforcement of lever-press durations. Experiment 1, which employed a discrete-trials procedure, manipulated deprivation level between subjects and reward magnitude within subjects. The minimum lever-press duration which would result in reward was varied from .4 to 6.4 sec. It was found that low deprivation resulted in longer mean durations and less response variability at the higher criterial values than did high deprivation. The magnitude of reward was not found to affect performance. Experiment 2 manipulated reward magnitude between subjects while holding deprivation level constant, and used the same general procedures as in Experiment 1. Small reward resulted in longer mean lever-press durations and less variability in responding than did large reward at the higher criterial values. The intertrial intervals were omitted in Experiment 3 in which deprivation level was varied between subjects and reinforcement was delivered only for response durations extending between 6.0 and 7.6 sec. Low deprivation resulted in longer mean lever-press durations and less response variability than did high deprivation, but the probability of a rewarded press duration did not differ between groups. The results overall are consistent with the hypothesis that low deprivation and small reward magnitude lead to weaker goal-approach responses and, hence, to less competition with lever holding. The deprivation and reward magnitude manipulations did not appear to influence lever holding performance by affecting the ability of animals to form temporal discriminations.