Contextual cues aid recovery from interruption: The role of associative activation.

A series of experiments introduced interruptions to the execution phase of simple Tower of London problems and found that the opportunity for preparation before the break in task reduced the time cost at resumption. Retrieval of the suspended goal was facilitated when participants were given the opportunity to encode retrieval cues during an "interruption lag" (the brief time before engaging in the interrupting task) but was impeded when these visual cues were subsequently altered following interruption. The results provide useful support for the goal-activation model (E. M. Altmann & G. J. Trafton, 2002), which assumes that context--at the points of both goal suspension and goal retrieval--is critical to efficient interruption recovery. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Tower of Hanoi: Evidence for the cost of goal retrieval.

Past research on the Tower of Hanoi problem has provided clear evidence for the importance of goal–subgoal structures in problem solving. However, the nature of the traditional Tower of Hanoi problem makes it impossible to determine whether there is any special cost associated with storing or retrieving goals. A variation of the Tower of Hanoi problem is described that allows one to determine separately if there is an effect of how long a goal has to be retained on storage time or how long ago it was formed on retrieval time. This paradigm provides evidence for an effect of retention interval on retrieval time and not on storage time. An ACT–R (Adaptive Control of Thought–Rational; J. R. Anderson & C. Lebiere, 1998) simulation of these data is described, which treats goal memory as no different from other memories. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effect of interruption duration and demand on resuming suspended goals.

The time to resume task goals after an interruption varied depending on the duration and cognitive demand of interruptions, as predicted by the memory for goals model (Altmann & Trafton, 2002). Three experiments using an interleaved tasks interruption paradigm showed that longer and more demanding interruptions led to longer resumption times in a hierarchical, interactive task. The resumption time profile for durations up to 1 min supported the role of decay in defining resumption costs, and the interaction between duration and demand supported the importance of goal rehearsal in mitigating decay. These findings supported the memory for goals model, and had practical implications for context where tasks are frequently interleaved such as office settings, driving, emergency rooms, and aircraft cockpits. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Improving memory after interruption: Exploiting soft constraints and manipulating information access cost.

Forgetting what one was doing prior to interruption is an everyday problem. The recent soft constraints hypothesis (Gray, Sims, Fu, & Schoelles, 2006) emphasizes the strategic adaptation of information processing strategy to the task environment. It predicts that increasing information access cost (IAC: the time, and physical and mental effort involved in accessing information) encourages a more memory-intensive strategy. Like interruptions, access costs are also intrinsic to most work environments, such as when opening documents and e-mails. Three experiments investigated whether increasing IAC during a simple copying task can be an effective method for reducing forgetting following interruption. IAC was designated Low (all information permanently visible), Medium (a mouse movement to uncover target information), or High (an additional few seconds to uncover such information). Experiment 1 found that recall improved across all three levels of IAC. Subsequent experiments found that High IAC facilitated resumption after interruption, particularly when interruption occurred on half of all trials (Experiment 2), and improved prospective memory following two different interrupting tasks, even when one involved the disruptive effect of using the same type of resource as the primary task (Experiment 3). The improvement of memory after interruption with increased IAC supports the prediction of the soft constraints hypothesis. The main disadvantage of a high access cost was a reduction in speed of task completion. The practicality of manipulating IAC as a design method for inducing a memory-intensive strategy to protect against forgetting is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multiple-reason decision making based on automatic processing.

It has been repeatedly shown that in decisions under time constraints, individuals predominantly use noncompensatory strategies rather than complex compensatory ones. The authors argue that these findings might be due not to limitations of cognitive capacity but instead to limitations of information search imposed by the commonly used experimental tool Mouselab (J. W. Payne, J. R. Bettman, & E. J. Johnson, 1988). The authors tested this assumption in 3 experiments. In the 1st experiment, information was openly presented, whereas in the 2nd experiment, the standard Mouselab program was used under different time limits. The results indicate that individuals are able to compute weighted additive decision strategies extremely quickly if information search is not restricted by the experimental procedure. In a 3rd experiment, these results were replicated using more complex decision tasks, and the major alternative explanations that individuals use more complex heuristics or that they merely encode the constellation of cues were ruled out. In sum, the findings challenge the fundaments of bounded rationality and highlight the importance of automatic processes in decision making. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Instructional compensation for age-related cognitive declines: Effects of goal specificity in maze learning.

The differential effects of goal specificity on maze learning among 40 young adults and 40 old adults were investigated. Participants had to navigate through a computerized training-maze task. The finish point of the maze could be presented either as a specific location or in more general terms. After solving the maze problem participants were required to solve the same problem again, either by moving from start to finish or backward from finish to start. The hypotheses that the presence or absence of a specific goal would disproportionately compromise or enhance, respectively, elderly people's performance were confirmed. Although young adults outperformed old participants in all conditions, these differences were much smaller in the nonspecific goal conditions. These results suggest that instruction based on cognitive load theory (J. Sweller, J. J. G. Van Merri?nboer, & F. Paas, 1998) can compensate for age-related cognitive declines. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Negative self-efficacy and goal effects revisited.

The authors address the verification of the functional properties of self-efficacy beliefs and document how self-efficacy beliefs operate in concert with goal systems within a sociocognitive theory of self-regulation in contrast to the focus of control theory on discrepancy reduction. Social cognitive theory posits proactive discrepancy production by adoption of goal challenges working in concert with reactive discrepancy reduction in realizing them. Converging evidence from diverse methodological and analytic strategies verifies that perceived self-efficacy and personal goals enhance motivation and performance attainments. The large body of evidence, as evaluated by 9 meta-analyses for the effect sizes of self-efficacy beliefs and by the vast body of research on goal setting, contradicts findings (J. B. Vancouver, C. M. Thompson, & A. A. Williams, 2001, J. B. Vancouver, C. M. Thompson. E. C. Tischner, & D. J. Putka, 2002) that belief in one's capabilities and personal goals is self-debilitating. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Counselor trainee achievement goal orientation and the acquisition of time-limited dynamic psychotherapy skills.

The relationship between trainee achievement goal orientation and acquisition of time-limited dynamic psychotherapy (TLDP; H. H. Strupp & J. L. Binder, 1984) skills was examined. Counselor trainees (n?=?28) completed the Achievement Goal Tendencies Scale (T. Hayamizu & B. Weiner, see record 1991-34655-001) and saw a recruited client for 4 counseling sessions. The sessions were rated for trainee adherence to TLDP. Growth-curve analyses revealed a significant relationship between trainee learning goal orientation and pattern of TLDP skill acquisition. A relatively higher trainee learning goal orientation was related to a linear increase in use of TLDP specific strategies and to less midtraining decline in trainees' adherence to the psychodynamic interviewing style aspects of the TLDP model. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are physical activity and symptoms correlates of functional limitations and disability in multiple sclerosis?

Objective: This study examined physical activity and symptoms as correlates of functional limitations and disability among individuals with multiple sclerosis (MS). The authors hypothesized that physical activity and symptoms would be interrelated and that physical activity would be indirectly associated with disability through a pathway that involved functional limitations, whereas symptoms would be directly associated with both functional limitations and disability. Methods: Individuals with MS (N=133) who were recruited through a community organization wore an accelerometer for a 7-day period and completed a paper-and-pencil survey containing the Godin Leisure-Time Exercise Questionnaire (G. Godin & R. J. Shephard, 1985), Symptom Inventory (C. E. Schwartz, T. Vollmer, & H. Lee, 1999), MS-Related Symptom Checklist (E. E. Gulick, 1989), and abbreviated Late-Life Function and Disability Inventory (E. McAuley, J. F. Konopack, R. W. Motl, K. Rosengren, & K. S. Morris, 2005). The data were analyzed using structural equation modeling in AMOS 6.0. Results: The standardized coefficients indicated that (a) physical activity and symptoms were negatively correlated (Φ=-.59); (b) those who were more physically active had better function (γ=.40); (c) those with fewer symptoms had better function (γ=-.46) and less disability (γ=-.29); and (d) those with better function had less disability (β=.63). Conclusion: Findings indicate that physical activity is associated with reduced disability through a pathway that is consistent with S. Z. Nagi's disablement model in individuals with MS. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Convergent validity of measures of cognitive distortions, impulsivity, and time perspective with pathological gambling.

The present study investigated the convergent validity of the Gamblers' Beliefs Questionnaire (GBQ; T. A. Steenbergh, A. W. Meyers, R. K. May, & J. P. Whelan, 2002), Gambling Passion Scale (GPS; F. Rousseau, R. J. Vallerand, C. F. Ratelle, G. Mageau, & P. J. Provencher, 2002), Eysenck Impulsivity Questionnaire (EIQ; S. B. G. Eysenck & H. J. Eysenck, 1978), and Stanford Time Perception Inventory (STPI; P. C. Zimbardo & J. N. Boyd, 1999) in reference to pathological gambling. The authors recruited 105 undergraduates representing categories of pathological gamblers, potential pathological gamblers, and nonpathological gamblers and administered the measures under neutral conditions. Both subscales of the GBQ and GPS and the Impulsivity subscale of the EIQ exhibited strong convergent validity, whereas the STPI showed weaker correspondence with symptoms of pathological gambling. Applications and limitations of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Optimizing Resource Utilization for Repetitive Construction Projects

Optimizing resource utilization can lead to significant reduction in the duration and cost of repetitive construction projects such as highways, high-rise buildings, and housing projects. This can be achieved by identifying an optimum crew size and interruption strategy for each activity in the project. Available dynamic programming formulations can be applied to provide solutions for this optimization problem; however, their application is limited, as they require planners to specify an arbitrary and an unbounded set of interruption options prior to scheduling. Such a requirement is not practical and may render the optimization problem infeasible. To circumvent the limitations of available formulations, this paper presents an automated and practical optimization model. The model utilizes dynamic programming formulation and incorporates a scheduling algorithm and an interruption algorithm so as to automate the generation of interruptions during scheduling. This transforms the consideration of interruption options, in optimizing resource utilization, from an unbounded and impractical problem to a bounded and feasible one. A numerical example from the literature is analyzed to illustrate the use and capabilities of the model.     

On the relation between base-rate and cost-benefit learning in simulated medical diagnosis.

Observers completed a series of simulated medical diagnosis tasks that differed in category discriminability and base-rate/cost– benefit ratio. Point, accuracy, and decision criterion estimates were closer to optimal (a) for category d′?=?2.2 than for category d′?=?1.0 or 3.2, (b) when base-rates as opposed to cost–benefits were manipulated, and (c) when the cost of an incorrect response resulted in no point loss (nonnegative cost) as opposed to a point loss (negative cost). These results support the "flat-maxima" (D. von Winterfeldt & W. Edwards, 1982) and competition between reward and accuracy (COBRA; W. T. Maddox & C. J. Bohil, 1998) hypotheses. A hybrid model that instantiated simultaneously both hypotheses was applied to the data. The model parameters indicated that (a) the reward-maximizing decision criterion quickly approached the optimal criterion, (b) the importance placed on accuracy maximization early in learning was larger when the cost of an incorrect response was negative as opposed to nonnegative, and (c) by the end of training the importance placed on accuracy was equal for negative and nonnegative costs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Psychopathy and recidivism from mid-adolescence to young adulthood: Cumulating legal problems and limiting life opportunities.

This study examined the ability of psychopathy as indexed by the following 4 scales: Psychopathy Checklist: Youth Version (A. E. Forth, D. S. Kosson, & R. D. Hare, 1996/2003), Antisocial Process Screening Device (P. J. Frick & R. D. Hare, 2001), Hare Self-Report Psychopathy Scale-II (R. D. Hare, 1991), and Personality Assessment Inventory-Antisocial Scale (L. C. Morey, 1991, 2007) to prospectively predict antisocial outcomes including general and violent recidivism across a 3- to 4-year time span. Results indicated that psychopathy was predictive of both general and violent recidivism from mid-adolescence to young adulthood even after accounting for 14 variables theoretically linked to offending. These findings add to the recent research showing stability in the psychopathy traits across time by also demonstrating that psychopathy in adolescents also has a real-world effect, including a cost to society with higher rates of offending in the community and a cost to youth with cumulating legal records that are likely to narrow their potential for prosocial growth in the community. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship of peritraumatic dissociation and posttraumatic stress: Findings in female Vietnam theater veterans.

This study examined the relationship of dissociation at the time of trauma, as assessed by the Peritraumatic Dissociation Experiences Questionnaire, Rater Version (PDEQ-RV; C. R. Marmar, D. S. Weiss, & T. J. Metzler, in press), and posttraumatic stress symptoms in a group of 77 female Vietnam theater veterans. PDEQ-RV ratings were found to be associated strongly with posttraumatic stress symptomatology, as measured by the Impact of Event Scale (M. J. Horowitz, N. Wilner, & W. Alvarez; see record 1980-26834-001), and also positively associated with level of stress exposure and general dissociative tendencies, measured by the Dissociative Experiences Scale. The PDEQ-RV was unassociated with general psychiatric symptomatology, as assessed by the clinical scales of the Minnesota Multiphasic Personality Inventory-2 (J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989). The PDEQ-RV was predictive of posttraumatic stress symptoms beyond the contributions of level of stress exposure and general dissociative tendencies. The findings provide further support for the reliability and validity of the PDEQ-RV as a measure of peritraumatic dissociation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effect of interruptions on postcompletion and other procedural errors: An account based on the activation-based goal memory model.

A postcompletion error (PCE) is a specific kind of cognitive slip that involves omitting a final task step after the main goal of the task is accomplished. It is notoriously difficult to provoke (and hence study) slips under experimental conditions. In this paper, the authors present an experimental task paradigm that has been shown to be effective for studying PCEs in routine procedural tasks. Two studies were carried out to examine the effect of interruption position and task structure on the prevalence of PCEs. It was found that significantly more PCEs were obtained when an interruption occurred just before the PC step than when an interruption occurred at any other position in the task. The authors account for this effect in terms of Altmann and Trafton's activation-based goal memory model. The same interruption effect was obtained for some, but not all, other procedural errors; the authors discuss the nature of these errors and likely explanations for the differences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Psychopathy screening of incarcerated juveniles: A comparison of measures.

How well do brief screening measures correspond with a full-scale assessment of psychopathy among juvenile offenders? This study compared 3 independent screening measures (the Antisocial Process Screening Device [APSD] Self-Report [A. A. Caputo, P. J. Frick, & S. L. Brodsky, 1999], the APSD Staff Rating [P. J. Frick & R. D. Hare, 2001] and the Psychopathy Content Scale [D. C. Murrie & D. G. Cornell, 2000] on the Millon Adolescent Clinical Inventory [T. Millon, 1993]) with the Psychopathy Checklist: Youth Version (PCL:YV; A. E. Forth, D. S. Kosson, & R. D. Hare, in press) in a sample of 117 incarcerated male juveniles. Modest correlations (.30-.49) were found between PCL:YV scores and those of the 3 screening measures, and there was moderate accuracy (67%-82%) in identifying youth who scored relatively high (≥25) on the PCL:YV. Although these results support the construct of adolescent psychopathy, they indicate substantial limitations in the use of psychopathy screening measures with juvenile offenders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Self-concordance, goal attainment, and the pursuit of happiness: Can there be an upward spiral?

Two studies used the self-concordance model of healthy goal striving (K. M. Sheldon & A. J. Elliot, 1999) to examine the motivational processes by which people can increase their level of well-being during a period of time and then maintain the gain or perhaps increase it even further during the next period of time. In Study 1, entering freshmen with self-concordant motivation better attained their 1st-semester goals, which in turn predicted increased adjustment and greater self-concordance for the next semester's goals. Increased self-concordance in turn predicted even better goal attainment during the 2nd semester, which led to further increases in adjustment and to higher levels of ego development by the end of the year. Study 2 replicated the basic model in a 2-week study of short-term goals set in the laboratory. Limits of the model and implications for the question of how (and whether) happiness may be increased are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Self-control in action: Implicit dispositions toward goals and away from temptations.

Five studies examined whether, in self-control dilemmas, individuals develop an implicit disposition to approach goals and avoid temptations, psychologically as well as physically. Using a method developed by A. K. Solarz (1960; see also K. L. Duckworth, J. A. Bargh, M. Garcia, & S. Chaiken, 2002), the authors assessed the time for pulling and pushing a lever in response to goal- and temptation-related stimuli (e.g., studying and partying). The results show that individuals offset the influence of tempting activities by automatically avoiding these stimuli (faster pushing responses) and by approaching stimuli related to an overarching goal (faster pulling responses). These implicit self-control dispositions varied as a function of the magnitude of the self-control conflict, itself defined by how strongly individuals were attracted to temptations and held the longer term goal. These dispositions were further shown to play a role in successful self-control. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Changes in goal selection induced by cue conflicts are in register with predictions from changes in place cell field locations.

In the cognitive mapping theory of hippocampal function, currently active place cells represent a rat's spatial location (J. O'Keefe & L. Nadel, 1978). A systematic shift of firing field locations should therefore produce a similar shift in a rat's judgment of its location. A. A. Fenton, G. Csizmadia, and R. U. Muller (2000a) recorded place cells in cylinders with 2 cue cards separated by 135°. When the separation was changed, firing fields moved systematically, as described by a vector-field equation (A. A. Fenton, G. Csizmadia, & R. U. Muller, 2000b). Given this cohesive movement of firing fields, the mapping theory predicts that a rat's decisions about the location of an unmarked goal should move after card separation changes, as described by the vector-field equation. The authors tested this reasoning with a task in which the rat earned a food reward by pausing in a small, unmarked goal zone. When cues were shifted in the absence of reward, goal choice shifts were accurately predicted by the vector-field equation, providing strong support for the notion that a rat's judgment of its spatial location is intimately related to the across-cell discharge pattern of simultaneously active place cells. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An Integrated Theory of the Mind.

Adaptive control of thought-rational (ACT-R; J. R. Anderson & C. Lebiere, 1998) has evolved into a theory that consists of multiple modules but also explains how these modules are integrated to produce coherent cognition. The perceptual-motor modules, the goal module, and the declarative memory module are presented as examples of specialized systems in ACT-R. These modules are associated with distinct cortical regions. These modules place chunks in buffers where they can be detected by a production system that responds to patterns of information in the buffers. At any point in time, a single production rule is selected to respond to the current pattern. Subsymbolic processes serve to guide the selection of rules to fire as well as the internal operations of some modules. Much of learning involves tuning of these subsymbolic processes. A number of simple and complex empirical examples are described to illustrate how these modules function singly and in concert. (PsycINFO Database Record (c) 2010 APA, all rights reserved)