An accuracy-response time capacity assessment function that measures performance against standard parallel predictions

Measures of human efficiency under increases in mental workload or attentional limitations are vital in studying human perception, cognition, and action. Assays of efficiency as workload changes have typically been confined to either reaction times (RTs) or accuracy alone. Within the realm of RTs, a nonparametric measure called the workload capacity coefficient has been employed in many studies (Townsend & Nozawa, 1995). However, the contribution of correct versus incorrect responses has been unavailable in that context. A nonparametric statistic that is capable of simultaneously taking into account accuracy as well as RTs would be highly useful. This theoretical study develops such a tool for two important decisional stopping rules. Preliminary data from a simple visual identification study illustrate one potential application.     

Statistical analyses of the resilience function

The extent to which distracting information influences decisions can be informative about the nature of the underlying cognitive and perceptual processes. In a recent paper, a response time-based measure for quantifying the degree of interference (or facilitation) from distracting information termed resilience was introduced. Despite using a statistical measure, the analysis was limited to qualitative comparisons between different model predictions. In this paper, we demonstrate how statistical procedures from workload capacity analysis can be applied to the new resilience functions. In particular, we present an approach to null-hypothesis testing of resilience functions and a method based on functional principal components analysis for analyzing differences in the functional form of the resilience functions across participants and conditions.     

Category and word search: generalizing search principles to complex processing

This research examines how the major phenomena of visual search for single characters generalize to word search and word-category search. Experiment 1 examined word and category visual search when the target and distractor sets had a varied mapping (VM) across trials. Reaction time was a linear function of the number of comparisons with a positive slope of 48 msec per word, 92 msec per category. The VM reaction time data indicated a self-terminating comparison process, and there was little or no improvement with practice. Experiment 2 examined search with a consistent mapping (CM) between targets and distractors. Category search slope dropped to 2 msec, and the function became nonlinear. Word search slope dropped to 18 msec, but the function became nonlinear. Word search slope dropped to 18 msec, but the function was still linear. Experiment 3 examined category detection carried out concurrently with serial recall of digits, allowing assessment of search performance under high workload. High workload caused a severe performance reduction in VM category search, and this decrement did not decrease with practice. High workload reduced initial performance in CM category search, but this decrement was eliminated with practice. The present category search results are similar to previous letter search results. Four principles of search are discussed in the context of a theory of automatic/control processing.     

Proximity coefficients as a measure of interrelationships in sequences of behavior

Although a range of methods allow investigators to measure the local dependencies among behaviors in a sequence, only indirect methods are available for measuring the interrelationships among behaviors across an entire sequence. This article introduces a new “proximity” coefficient that measures interrelationships among behaviors as a direct function of their intrinsic organization within a sequence. The coefficient does not depend on a user-defined “window” of analysis and provides an efficient use of data that facilitates comparisons across actors, over time periods, and between single cases. An analysis of artificial data shows further properties of the coefficient, including a diagonal value that reflects the degree to which a behavior is reciprocated, and an asymmetry in values that depicts the relative precedence among behaviors. Extensions of the coefficient to the multivariate case, and its relation to existing methods of analyzing sequences, are discussed.     

Workload capacity spaces: A unified methodology for response time measures of efficiency as workload is varied

Increasing the number of available sources of information may impair or facilitate performance, depending on the capacity of the processing system. Tests performed on response time distributions are proving to be useful tools in determining the workload capacity (as well as other properties) of cognitive systems. In this article, we develop a framework and relevant mathematical formulae that represent different capacity assays (Miller’s race model bound, Grice’s bound, and Townsend’s capacity coefficient) in the same space. The new space allows a direct comparison between the distinct bounds and the capacity coefficient values and helps explicate the relationships among the different measures. An analogous common space is proposed for the AND paradigm, relating the capacity index to the Colonius–Vorberg bounds. We illustrate the effectiveness of the unified spaces by presenting data from two simulated models (standard parallel, coactive) and a prototypical visual detection experiment. A conversion table for the unified spaces is provided.     

The Role of the Corpus Callosum in Interhemispheric Transfer of Information: Excitation or Inhibition?

The corpus callosum is the major neural pathway that connects homologous cortical areas of the two cerebral hemispheres. The nature of how that interhemispheric connection is manifested is the topic of this review; specifically, does the corpus callosum serve to communicate an inhibitory or excitatory influence on the contralateral hemisphere? Several studies take the position that the corpus callosum provides the pathway through which a hemisphere or cortical area can inhibit the other hemisphere or homologous cortical area in order to facilitate optimal functional capacity. Other studies suggest that the corpus callosum integrates information across cerebral hemispheres and thus serves an excitatory function in interhemispheric communication. This review examines these two contrasting theories of interhemispheric communication. Studies of callosotomies, callosal agenesis, language disorders, theories of lateralization and hemispheric asymmetry, and comparative research are critically considered. The available research, no matter how limited, primarily supports the notion that the corpus callosum serves a predominantly excitatory function. There is evidence, however, to support both theories and the possibility remains that the corpus callosum can serve both an inhibitory and excitatory influence on the contralateral hemisphere.     

DIFFERENTIAL RESPONDING ACROSS THERAPISTS IN A FUNCTIONAL ANALYSIS: A CASE STUDY

False negative functional analysis (FA) results may be less likely when caregivers serve as therapists, as problem behavior may be more likely to occur in the presence of a caregiver than with a novel therapist. This case study both replicated and extended prior research on this topic. It provides an example of FA results differing between a caregiver and novel therapist and also showed that FA results may differ across caregivers when they serve as therapists. Copyright © 2012 John Wiley & Sons, Ltd.     

Triple Roles,Worship, and “Period Shaming”: How Muslim Women Maintain Belonging and Connection in Ramadan

Ramadan is a time when Muslims experience an increased connection to God and an increased sense of belonging through communal acts of worship, but Muslim women are often excluded from many acts of worship due to religious restrictions while they are menstruating. This study innovatively applies concepts of “religious citizenship” and women's “triple roles” drawn from lived religion and feminist literature to a new context of Muslim women and their everyday practices. Based on research with more than 60 culturally diverse Melbourne Muslims who kept anonymous diaries before, during, and after Ramadan 2021, this analysis shows how Muslim women's understandings of religious belonging and connection in Ramadan are shaped by their own reconfigured approaches to worship and socialization alongside their everyday workload. It provides a unique opportunity to investigate the invisible challenges faced by Muslim women in worship and devotion during Ramadan.     

Individual differences in response to automation: the five factor model of personality

This study examined the relationship of operator personality (Five Factor Model) and characteristics of the task and of adaptive automation (reliability and adaptiveness-whether the automation was well-matched to changes in task demand) to operator performance, workload, stress, and coping. This represents the first investigation of how the Five Factors relate to human response to automation. One-hundred-sixty-one college students experienced either 75% or 95% reliable automation provided with task loads of either two or four displays to be monitored. The task required threat detection in a simulated uninhabited ground vehicle (UGV) task. Task demand exerted the strongest influence on outcome variables. Automation characteristics did not directly impact workload or stress, but effects did emerge in the context of trait-task interactions that varied as a function of the dimension of workload and stress. The pattern of relationships of traits to dependent variables was generally moderated by at least one task factor. Neuroticism was related to poorer performance in some conditions, and all five traits were associated with at least one measure of workload and stress. Neuroticism generally predicted increased workload and stress and the other traits predicted decreased levels of these states. However, in the case of the relation of Extraversion and Agreeableness to Worry, Frustration, and avoidant coping, the direction of effects varied across task conditions. The results support incorporation of individual differences into automation design by identifying the relevant person characteristics and using the information to determine what functions to automate and the form and level of automation.     

"Fair" Allocations of Pay and Workload: Tests of a Subtractive Model with Nonlinear Judgment Function

An allocation is commonly regarded as "fair" if the ratio of outcome of two persons equals the ratio of their respective inputs. In allocation of pay, however, a subtractive model with sigmoidal-shaped judgment function has recently been reported. The present research further tested the plausibility of the subtractive model in allocations of pay and workload. Subjects decided either pay (N = 17) or workload (N = 17) for Person A using three pieces of information - the pay of B and the input of A and B or the workload of B and the pay of A and B. As hypothesized, factorial plots of the input (or pay) of Persons A and B across the low, moderate, and high levels of pay (or workload) of Person B yielded the diverging, slanted barrel, and converging patterns, respectively. Monotonic transformations of the data rescaled nonparallelism to perfect parallelism. The judgment function had a sigmoidal shape characterized by "floor" and "ceiling" effects. These results support the subtractive model but question the ratio model of "fair" allocations.     

Summary Street: Interactive Computer Support for Writing

Summary Street is educational software based on latent semantic analysis (LSA), a computer method for representing the content of texts. The classroom trial described here demonstrates the power of LSA to support an educational goal by providing automatic feedback on the content of students' summaries. Summary Street provides this feedback in an easy-to-grasp, graphic display that helps students to improve their writing across multiple cycles of writing and revision on their own before receiving a teacher's final evaluation. The software thus has the potential to provide students with extensive writing practice without increasing the teacher's workload. In classroom trials 6th-grade students not only wrote better summaries when receiving content-based feedback from Summary Street, but also spent more than twice as long engaged in the writing task. Specifically, their summaries were characterized by a more balanced coverage of the content than summaries composed without this feedback. Greater improvement in content scores was observed with texts that were difficult to summarize. Classroom implementation of Summary Street is discussed, including suggestions for instructional activities beyond summary writing.     

Effects of specific emotions on subjective judgment,driving performance,and perceived workload

The aim of this paper was to explore effects of specific emotions on subjective judgment, driving performance, and perceived workload. The traditional driving behavior research has focused on cognitive aspects such as attention, judgment, and decision making. Psychological findings have indicated that affective states also play a critical role in a user’s rational, functional, and intelligent behaviors. Most applied emotion research has concentrated on simple valence and arousal dimensions. However, recent findings have indicated that different emotions may have different impacts, even though they belong to the same valence or arousal. To identify more specific affective effects, seventy undergraduate participants drove in a vehicle simulator under three different road conditions, with one of the following induced affective states: anger, fear, happiness, or neutral. We measured their subjective judgment of driving confidence, risk perception, and safety level after affect induction; four types of driving errors: Lane Keeping, Traffic Rules, Aggressive Driving, and Collision while driving; and the electronic NASA-TLX after driving. Induced anger clearly showed negative effects on subjective safety level and led to degraded driving performance compared to neutral and fear. Happiness also showed degraded driving performance compared to neutral and fear. Fear did not have any significant effect on subjective judgment, driving performance, or perceived workload. Results suggest that we may need to take emotions and affect into account to construct a naturalistic and generic driving behavior model. To this end, a specific-affect approach is needed, beyond the sheer valence and arousal dimensions. Given that workload results are similar across affective states, examining affective effects may also require a different approach than just the perceived workload framework. The present work is expected to guide emotion detection research and help develop an emotion regulation model and adaptive interfaces for drivers.     

Evaluating the effects of functional communication training in the presence and absence of establishing operations

We conducted functional analyses of aberrant behavior with 4 children with developmental disabilities. We then implemented functional communication training (FCT) by using different mands across two contexts, one in which the establishing operation (EO) that was relevant to the function of aberrant behavior was present and one in which the EO that was relevant to the function of aberrant behavior was absent. The mand used in the EO-present context served the same function as aberrant behavior, and the mand used in the EO-absent context served a different function than the one identified via the functional analysis. In addition, a free-play (control) condition was conducted for all children. Increases in relevant manding were observed in the EO-present context for 3 of the 4 participants. Decreases in aberrant behavior were achieved by the end of the treatment analysis for all 4 participants. Irrelevant mands were rarely observed in the EO-absent context for 3 of the 4 participants. Evaluating the effectiveness of FCT across different contexts allowed a further analysis of manding when the establishing operations were present or absent. The contributions of this study to the understanding of functional equivalence are also discussed.     

Neurocognitive predictors of performance‐based functional capacity in bipolar disorder

Neurocognitive impairment can predict functional capacity in individuals with bipolar disorder, though little research has examined whether different neurocognitive domains impact specific types of tasks. This study examined the relationship between several neurocognitive variables and the UCSD Performance‐Based Skills Assessment (UPSA; Patterson et al., 2011) to identify the domains and tests that best predict the performance across the subscales. Forty‐seven euthymic participants who were diagnosed with either Bipolar I or Bipolar II were recruited and assessed on a battery of neuropsychological measures and the UPSA. Correlational and regression analyses were run to identify neurocognitive predictors of UPSA subscales. Per the literature, verbal learning and memory and executive function composites were first examined. Verbal learning and memory predicted the Communication subscale and Total score variables above and beyond the estimated FSIQ and symptom rating scales. In a secondary exploratory analysis, the Benton Judgment of Line Orientation subtest predicted the Finance subscale while the California Verbal Learning Test predicted the UPSA total score. Verbal learning and memory emerged as the strongest predictor of functional capacity, suggesting that this domain should be investigated in future mediational and longitudinal studies with the UPSA.     

Spatial and temporal task characteristics as stress: a test of the dynamic adaptability theory of stress, workload, and performance

The goal for this study was to test assertions of the dynamic adaptability theory of stress, which proposes two fundamental task dimensions, information rate (temporal properties of a task) and information structure (spatial properties of a task). The theory predicts adaptive stability across stress magnitudes, with progressive and precipitous changes in adaptive response manifesting first as increases in perceived workload and stress and then as performance failure. Information structure was manipulated by varying the number of displays to be monitored (1, 2, 4 or 8 displays). Information rate was manipulated by varying stimulus presentation rate (8, 12, 16, or 20 events/min). A signal detection task was used in which critical signals were pairs of digits that differed by 0 or 1. Performance accuracy declined and workload and stress increased as a function of increased task demand, with a precipitous decline in accuracy at the highest demand levels. However, the form of performance change as well as the pattern of relationships between speed and accuracy and between performance and workload/stress indicates that some aspects of the theory need revision. Implications of the results for the theory and for future research are discussed.     

Posttraumatic Growth and Sexual Violence: A Literature Review

Posttraumatic growth (PTG) is the positive psychological growth that a person might experience after enduring a traumatic event. PTG is a relatively new area of research identified by researchers because it represents a shift in thinking. Rather than focusing on the negative consequences of trauma, it explores the potential for positive outcomes associated with trauma. Although PTG is well documented across different types of traumas, it is unclear how this kind of growth stems from sexual violence, specifically. This review provides an overview of the literature concerning PTG that is associated with sexual violence. Results across the literature indicate that sexual violence is consistently associated with PTG. However, given the inconsistency in research designs, assessment, and operational definitions used to study PTG, many researchers suggest that it might be difficult to determine how and when PTG occurs. This study provides a literature review of the research on PTG in the aftermath of sexual violence. Important implications for future directions and trauma-based therapy are discussed and include the identification of relevant predictors, the importance of context, and how service providers might benefit from a better understanding of PTG.     

Consciousness and the superfunctionality claim

The superfunctionality claim is that phenomenal experiences are more than functional (objective, causal) relations. This is one of the most widely used but least attacked claims in the anti-physicalist literature on consciousness. Coupled with one form of structuralism, the view that science only explains functional relations, the superfunctionality claim entails that science will not explain phenomenal experience. The claim is therefore essential to many anti-physicalist arguments. I identify an open question argument for the superfunctionality claim that expresses an intuition deserving of explanation. Using the experience of fear as an example, I show that this intuition cannot distinguish between whether conscious experiences are more than functional relations, or whether instead they are just very complex (including, constituted by very complex functional relations). I give reasons to suspect that the latter is more likely the case. This renders physicalism safe from the superfunctionality claim. This also provides a challenge to the proponents of the superfunctionality claim: they should explain why paradigmatically mysterious phenomenal experiences are correlated with extensive and complex physical correlates.     

Functional Synergy Between Postural and Visual Behaviors When Performing a Difficult Precise Visual Task in Upright Stance

Previous works usually report greater postural stability in precise visual tasks (e.g., gaze‐shift tasks) than in stationary‐gaze tasks. However, existing cognitive models do not fully support these results as they assume that performing an attention‐demanding task while standing would alter postural stability because of the competition of attention between the tasks. Contrary to these cognitive models, attentional resources may increase to create a synergy between visual and postural brain processes to perform precise oculomotor behaviors. To test this hypothesis, we investigated a difficult searching task and a control free‐viewing task. The precise visual task required the 16 young participants to find a target in densely furnished images. The free‐viewing task consisted of looking at similar images without searching anything. As expected, the participants exhibited significantly lower body displacements (linear, angular) and a significantly higher cognitive workload in the precise visual task than in the free‐viewing task. Most important, our exploration showed functional synergies between visual and postural processes in the searching task, that is, significant negative relationships showing lower head and neck displacements to reach more expended zones of fixation. These functional synergies seemed to involve a greater attentional demand because they were not significant anymore when the cognitive workload was controlled (partial correlations). In the free‐viewing task, only significant positive relationships were found and they did not involve any change in cognitive workload. An alternative cognitive model and its potential subtended neuroscientific circuit are proposed to explain the supposedly cognitively grounded functional nature of vision–posture synergies in precise visual tasks.     

Winning the Future: An Investigation into the Creativity Capacity Across the Levels of Education in Ireland

This research investigated the creativity capacity across the levels of education in Ireland, involving 702 participants. Creative capacity was investigated through a comparative analysis of creativity quotient (CQ). A divergent thinking task comprising the how many uses activity was assessed using the criteria for determining CQ; fluency, flexibility, and product. Convergent thinking tasks comprised of graphic problems. A comparative analysis occurred between the divergent and convergent thinking activities. It is necessary that creativity is promoted throughout education systems to ensure that students maintain and develop their creative capacities into adulthood. Education systems need to foster independent thinking, creativity, and innovation. This article investigates students’ creative capacity spanning 3 levels of education. The interdisciplinary and progressive graduate attributes from the levels of education were identified and synthesized toward developing collaborative progressive creativity across the levels of education for future success. Finally, this articles outlines, in the Irish context, the uniqueness with regard to the ability to sustain creative capacity (divergent and convergent thinking) at each level of education, and the degree to which this effort is supported by administration, teachers, and a common cultural interpretation of the nature of education.     

Qualitative similarities in the visual short-term memory of pigeons and people

Visual short-term memory plays a key role in guiding behavior, and individual differences in visual short-term memory capacity are strongly predictive of higher cognitive abilities. To provide a broader evolutionary context for understanding this memory system, we directly compared the behavior of pigeons and humans on a change detection task. Although pigeons had a lower storage capacity and a higher lapse rate than humans, both species stored multiple items in short-term memory and conformed to the same basic performance model. Thus, despite their very different evolutionary histories and neural architectures, pigeons and humans have functionally similar visual short-term memory systems, suggesting that the functional properties of visual short-term memory are subject to similar selective pressures across these distant species.