Relinquishment of control and the Type A behavior pattern: The role of performance evaluation.

Investigated the role of information processing in the control relinquishment decisions of individuals with Type A (coronary prone) and Type B (noncoronary prone) personalities. Pairs of undergraduates (N?=?147) who had previously completed the Jenkins Activity Survey worked independently on a task and received feedback indicating that their partner had performed at a comparable or superior level. On a 2nd task, Ss combined their efforts and made decisions concerning who would work on different parts of that task. One-third of the Ss made this decision before completing an evaluation of the initial performances. Another third completed the evaluation without knowing that they would subsequently make a control decision. The final third of the Ss completed their evaluations knowing that a control decision would follow. Results indicate that when the evaluations were completed last, or when the evaluations were completed first but without knowledge of the impending decision, Type A's relinquished less control to a superior partner than did Type B's. When evaluations were completed with knowledge of an impending control decision, Type A's and B's did not differ in their decisions. Results suggest that under certain conditions, Type A's use an automatic or mindless decision style with potentially maladaptive consequences. (33 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

External support and the development of problem-solving routines.

Participants 2 experiments practiced solving complex arithmetic problems with or without external memory aid (paper and pencil). Participants with the memory aid more often developed routines that corresponded to the conceptual structure of the task. The availability of a memory aid also slowed the rate of settling on a stable routine. In Experiment 2, the availability both of an external memory aid and of a worked example varied between Participants. Examples had the greatest influence on initial problem-solving strategies but did not override the effects of the memory aid. The results provide evidence about the roles of situational and cognitive constraints in shaping problem-solving routines. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Decision making with the "adaptive toolbox": Influence of environmental structure, intelligence, and working memory load.

In 2 experiments with a total of 220 participants, the tendency to use simple heuristics such as the take the best heuristic in an adaptive manner was investigated. In a simulated stock market paradigm, the payoff structure of environments was varied, favoring either compensatory or noncompensatory decision strategies in terms of expected long-term payoff. In both experiments, the majority of participants were classified as using strategies that were adequate for the environment, supporting the notion of adaptive strategy selection. These strategy shifts were moderated by intelligence, as measured with common tests. Neither an additional learning phase (Experiment 1) nor working memory load or working memory capacity (Experiment 2) had additional effects on strategy selection. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How semantic is automatic semantic priming?

Priming for semantically related concepts was investigated using a lexical decision task designed to reveal automatic semantic priming. Two experiments provided further evidence that priming in a single presentation lexical decision task (T. P. McNamara and J. Altarriba, 1988) derives from automatic processes. Mediated priming, but not inhibition or backward priming, was found in this type of lexical decision task. Exps 3 and 4 demonstrate that automatic priming was found only for associated word pairs, as determined by word association norms, and not for word pairs that are semantically related but not associated. It is argued that automatic priming in the lexical decision task occurs at a lexical level but not at a semantic level. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A signal-detection analysis of fast-and-frugal trees.

Models of decision making are distinguished by those that aim for an optimal solution in a world that is precisely specified by a set of assumptions (a so-called “small world”) and those that aim for a simple but satisfactory solution in an uncertain world where the assumptions of optimization models may not be met (a so-called “large world”). Few connections have been drawn between these 2 families of models. In this study, the authors show how psychological concepts originating in the classic signal-detection theory (SDT), a small-world approach to decision making, can be used to understand the workings of a class of simple models known as fast-and-frugal trees (FFTs). Results indicate that (a) the setting of the subjective decision criterion in SDT corresponds directly to the choice of exit structure in an FFT; (b) the sensitivity of an FFT (measured in d′) is reflected by the order of cues searched and the properties of cues in an FFT, including the mean and variance of cues' individual d′s, the intercue correlation, and the number of cues; and (c) compared with the ideal and the optimal sequential sampling models in SDT and a majority model with an information search component, FFTs are extremely frugal (i.e., do not search for much cue information), highly robust, and well adapted to the payoff structure of a task. These findings demonstrate the potential of theory integration in understanding the common underlying psychological structures of apparently disparate theories of cognition. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Information seeking with conflicting and irrelevant inputs.

Studied information-seeking performance under conditions of conflicting and irrelevant input information in an 8-choice task that was an abstracted version of a tactical decision problem faced by military commanders. 14 male undergraduates were required to purchase information from 3 fallible sources until they could decide which target was the object of an enemy advance. The earlier a correct choice was made, the greater the monetary payoff to the S. Results indicate that degree of information conflict and relevance had little influence on trial number and latency of correct choices, but a more marked impact on initial decisions. Ss purchased more information prior to 1st decisions when degree of relevance was low. Choice latencies of 1st decisions decreased with increasing relevance and decreasing conflict. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Framing of task performance strategies: effects on performance in a multiattribute dynamic decision making environment

It is well documented that the way a static choice task is "framed" can dramatically alter choice behavior, often leading to observable preference reversals. This framing effect appears to result from perceived changes in the nature or location of a person's initial reference point, but it is not clear how framing effects might generalize to performance on dynamic decision making tasks that are characterized by high workload, time constraints, risk, or stress. A study was conducted to examine the hypothesis that framing can introduce affective components to the decision making process and can influence, either favorably (positive frame) or adversely (negative frame), the implementation and use of decision making strategies in dynamic high-workload environments. Results indicated that negative frame participants were significantly impaired in developing and employing a simple optimal decision strategy relative to a positive frame group. Discussion focuses on implications of these results for models of dynamic decision making.     

Aging and decision making: driving-related problem solving

We examined age-related effects on decision making in a task environment familiar to most younger and older adults. Participants made route-selection decisions in real time. Participants received information about traffic density and expected speed limits of main and alternative routes, from which they determined the optimality of their present route versus alternative routes. The experiment evaluated the effects of information type, amount of congestion, alternative route speed limit, and age on speed and quality of decision making. Measures of optimal route selection revealed main effects of alternative route speed limit, congestion level, and message type, but there was not a main effect of age, and age did not interact with any variable. In terms of decision speed (but not quality of decision making), older participants were slower, and age interacted with alternative route speed and with message type. The data are interpreted in relation to previous data examining everyday problem solving and aging.     

The time course of repetition effects for words and unfamiliar faces.

The repetition effect on reaction time to words and unfamiliar faces was examined at lags of 0, 4, and 15 items between 1st and 2nd presentations. For words, Ss made either a lexical decision or a decision based on the stimulus's structural attributes. In the lexical decision task, a significant repetition effect was found at all 3 lags for words, whereas for nonwords the effect was significant only at Lag 0. In the structural decision task, the repeated decision was facilitated for both words and nonwords only at Lag 0, despite a word superiority effect at all lags. Target faces were presented either 0, 1, or 5 times before testing. Ss made either structural discriminations (face/nonface) or recognition judgments. In the structural discrimination task, the effect of repetition was significant only at Lag 0 (regardless of the number of pretest presentations). In the recognition task, the repetition effect was longer lasting, and its magnitude increased with the number of presentations which, presumably, determined the strength of the episodic memory trace. These results are taken as showing that repetition effects, like other measures of memory, are influenced by the type of stimulus, its preexperimental history, the level to which it is processed, and the lag between the initial presentation and the test. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Adaptive and maladaptive behaviour in children with epileptic encephalopathies: correlation with cerebral glucose metabolism

In the childhood epileptic encephalopathies mental impairment is common and severe. Traditional cognitive assessment is difficult because of the low level of performance, autistic features, and the unpredictable effect of seizures. An alternative is to measure adaptive and maladaptive behaviour using instruments administered to the caregivers. Adults with different types of dementia have characteristic patterns of cortical glucose hypometabolism. Thirty-two children were studied using visual and semiquantitative analysis of 18fluorodeoxyglucose positron emission tomographic (PET) scans. The Vineland Scales and the Conners' Questionnaires were used to assess adaptive and maladaptive behaviour. The mean adaptive behaviour composite score was 37.3+/-15.6; all but one subject had a low adaptive level. A profile of relative strength in socialisation and weakness in daily living skills emerged. Up to two-thirds of children had abnormal behaviour patterns, particularly attention-deficit disorders and hyperactivity. Adaptive and maladaptive behaviour was not related to the presence or absence of focal cortical PET abnormalities. However, adaptive behaviour scores showed an inverse correlation with the degree of metabolic abnormality in the frontal lobes.     

Strategic effects in associative priming with words, homophones, and pseudohomophones.

G. Lukatela and M. T. Turvey (1994x) showed that at a 57-ms prime-presentation duration, the naming of a visually presented target word (frog) is primed not only by an associate word (toad) but also by a homophone (towed) and a pseudohomophone (tode) of the associate. At a 250-ms prime presentation, priming with the homophone was no longer observed. In Experiment 1, the authors replicated these priming effects in the Dutch language. Next, the authors extended the priming paradigm to a word/legalnon-word lexical decision task (Experiments 2 and 3) and a word/pseudohomophone decision task (Experiment 4). Phonologically mediated associative priming was observed in all conditions with pseudohomophonic primes but not with homophonic primes. The latter did not prime at a 250-ms prime-presentation time and at 57 ms in the word/pseudohomophone task. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Decision processes in discrimination: Fundamental misrepresentations of signal detection theory.

A new approach to studying decision making in discrimination tasks is described that does not depend on the technical assumptions of signal detection theory (e.g., normality of the encoding distributions). In 3 different experiments, results of these new distribution-free tests converge on a single, surprising conclusion: response biases had substantial effects on the encoding distributions but no effect on the decision rule, which was uniformly unbiased in equal and unequal base rate conditions and in symmetric and asymmetric payoff conditions. This seemingly paradoxical result is fundamentally inconsistent with the entire family of signal detection theory models, raising some important questions about the significance of many published results in the human performance literature. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

What comes first? How selective attentional processes regulate the activation of a motor routine in a manual search task.

An intriguing error has been observed in toddlers presented with a 3-location search task involving invisible displacements of an object, namely, the C-not-B task. In 3 experiments, the authors investigated the dynamics of the attentional focus process that is suspected to be involved in this task. In Experiment 1, 2.5-year-old children were tested on a new adaptation of the C-not-B task in which the opening of the experimenter's hand between cloths provided visual information about the correct localization of the toy. Children still emitted a strong response bias toward the last hiding place. In Experiment 2, 2.5-year-old children were tested on a new version of the task that was designed to investigate the role of the central location in the task. This 2nd experiment demonstrated that changing the hand's movement from A to C to B did not enable children to succeed in the task. In Experiment 3, 2.5-year-old children were tested in a situation that is analogous to the C-not-B with open hands task except for the fact that the experimenter dropped the toy under the 1st cloth in the path. Toddlers succeeded when the toy was hidden at Location A but not when it was hidden at Location B. Data indicate that attentional focus on the experimenter's hand motion is contingent on whether that stimulus is critical to performing the task. We argue that these findings provide a potential mechanism through which motor routines can be regulated in accordance with strategic intentions. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Depressive realism from the perspective of cognitive-experiential self-theory

To explain why the depressive realism effect has been found in trivial, artificial laboratory but not in more realistic or emotionally engaging situations, the authors hypothesized that depressed people overcompensate for a tendency toward maladaptive experiential (intuitive) processing by exercising excessive rational control in trivial situations. In more consequential situations, they are unable to control their maladaptive experiential processing because it is excessive, or their rational control is insufficient, or both. As predicted, a subclinically depressed group (n = 39) made more optimal decisions than a nondepressed control group (n = 36) under trivial conditions, and the groups converged under more consequential conditions, with the depressed group responding less and the control group more optimally. Also, the depressed group reported engaging in less rational processing and in more maladaptive experiential processing in everyday life than did the control group.     

Information seeking and achievement motivation in middle childhood and adolescence: The role of conceptions of ability.

Two studies confirmed that maladaptive responses to failure in ego-involving settings depend on acquisition of the differentiated concept of ability (DCA) in early adolescence (J. G. Nicholls, 1984). Information seeking, performance, and interest in task versus ego-involving conditions were examined among 190 pupils in Grades 4 and 8 and 139 pupils in Grades 5–6 who had or had not acquired the DCA. Age and conception of ability had similar effects. Pupils who had acquired the DCA responded to the task condition with strivings to learn and requests for information relevant to acquiring mastery and to the ego condition with strivings to outperform others and requests for normative feedback. Failure undermined information seeking, performance, and interest in the ego condition only after acquisition of the DCA. Surprisingly, pupils who had not acquired the DCA responded to both conditions with strivings to assess normative success but displayed neither the costs of ego involvement nor the benefits of task involvement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perfectionism and bulimic symptoms in African American college women: Dimensions of perfectionism and their interactions with perceived weight status.

This study had 2 primary aims: (a) to examine the unique relations between maladaptive and adaptive dimensions of perfectionism and bulimic symptoms and (b) to test an interactive model of perfectionism and perceived weight status for bulimic symptoms in a sample of African American female undergraduates. The sample consisted of 97 women at Time 1 and 70 women at Time 2 about 5 months later, with bulimic symptoms assessed at both time points. Results showed that maladaptive perfectionism, but not adaptive perfectionism, was uniquely related to bulimic symptoms in cross-sectional analyses. Tests of interaction effects indicated that maladaptive perfectionism interacted with perceived weight status to identify elevated bulimic symptoms such that women with high levels of maladaptive perfectionism who felt overweight exhibited the highest levels of bulimic symptoms, both concurrently and prospectively after controlling for Time 1 levels of bulimic symptoms. This study highlights the relevance of maladaptive perfectionism to bulimic symptoms in African American college women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Local Optima in K-Means Clustering: What You Don't Know May Hurt You.

The popular K-means clustering method, as implemented in 3 commercial software packages (SPSS, SYSTAT, and SAS), generally provides solutions that are only locally optimal for a given set of data. Because none of these commercial implementations offer a reasonable mechanism to begin the K-means method at alternative starting points, separate routines were written within the MATLAB (Math-Works, 1999) environment that can be initialized randomly (these routines are provided at the end of the online version of this article in the PsycARTICLES database). Through the analysis of 2 empirical data sets and 810 simulated data sets, it is shown that the results provided by commercial packages are most likely locally optimal. These results suggest the need for some strategy to study the local optima problem for a specific data set or to identify methods for finding "good" starting values that might lead to the best solutions possible. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Think Different: The Merits of Unconscious Thought in Preference Development and Decision Making.

The role of unconscious and conscious thought in decision making was investigated in 5 experiments. Because of the low processing capacity of consciousness, conscious thought was hypothesized to be maladaptive when making complex decisions. Conversely, unconscious thought was expected to be highly effective. In Experiments 1-3, participants were presented with a complex decision problem in which they had to choose between various alternatives, each with multiple attributes. Some participants had to make a decision immediately after being presented with the options. In the conscious thought condition, participants could think about the decision for a few minutes. In the unconscious thought condition, participants were distracted for a few minutes and then indicated their decision. Throughout the experiments, unconscious thinkers made the best decisions. Additional evidence obtained in Experiments 4 and 5 suggests that unconscious thought leads to clearer, more polarized, and more integrated representations in memory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Complex decision rules in categorization: Contrasting novice and experienced performance.

The ability of novice and experienced Ss to learn complex decision rules was tested with 3 categorization tasks. Each task involved 2 categories with exemplars that were normally distributed on 2 stimulus dimensions. Three separate sets of stimuli were used, and in each task the decision rule that maximized categorization accuracy was a highly nonlinear function of the stimulus dimension values. In the 3 tasks, all experienced Ss used highly nonlinear decision rules. Quadratic rules were supported over bilinear rules, and in many cases Ss used nearly optimal decision rules. These findings did not depend on whether the stimulus components were integral or separable. Novice Ss also did not use simple linear rules. A model that assumed Ss tried a succession of different linear rules was also rejected. Instead, novices appeared to use quadratic rules, although less consistently than experienced Ss. (PsycINFO Database Record (c) 2010 APA, all rights reserved)