Outrage Fatigue? Cognitive Costs and Decisions to Blame

Across nine studies (N=1,672), we assessed the link between cognitive costs and the choice to express outrage by blaming. We developed the Blame Selection Task, a binary free-choice paradigm that examines the propensity to blame transgressors (versus an alternative choice)—either before or after reading vignettes and viewing images of moral transgressions. We hypothesized that participants’ choice to blame wrongdoers would negatively relate to how cognitively inefficacious, effortful, and aversive blaming feels (compared to the alternative choice). With vignettes, participants approached blaming and reported that blaming felt more efficacious. With images, participants avoided blaming and reported that blaming felt more inefficacious, effortful, and aversive. Blame choice was greater for vignette-based transgressions than image-based transgressions. Blame choice was positively related to moral personality constructs, blame-related social-norms, and perceived efficacy of blaming, and inversely related to perceived effort and aversiveness of blaming. The BST is a valid behavioral index of blame propensity, and choosing to blame is linked to its cognitive costs.

Vicarious trial-and-error is associated with the use of place-strategies in human virtual navigation

Studies of decision-making in rodents have demonstrated that vicarious trial-and-error (VTE) is an important behavioral index of deliberation, when animals search through and evaluate the available options before making a decision. In rodents, VTE is enhanced during the use of hippocampally-dependent place strategies, which may represent a type of model-based behavior. While some evidence exists for VTE-like behaviors in humans during navigation, it is unknown if VTE in humans is specifically associated place-strategies, as would be predicted for model-based behaviors. To address this gap, humans were tested in navigation tasks in symmetrical environments, which allowed for the use of probe trials to assess navigation strategies (place or response) or impose them directly. The use of place strategies (on probe trials and place-training) was associated with increases in measures of VTE (reorientations and pausing) especially at high-cost decision points, similar to results from rodent studies. In contrast, response-strategies were associated with the development of efficient, stereotyped trajectories (consistent with model-free learning). These results support the identification of place- and response-strategies in human navigation with model-based and model-free learning, respectively, and demonstrate that VTE is specifically related to the use of place-strategies.

Slower adaptation of control strategies in individuals with high impulsive tendencies

Flexible use of reactive and proactive control mechanisms according to environmental demands is the key to adaptive behaviors. In this study, forty-eight adults performed ten blocks of an AX-CPT task to reveal the strength of proactive control mechanisms by the calculation of the proactive behavioral index (PBI). They also fulfilled the UPPS questionnaire to assess their impulsiveness. The median-split method based upon the UPPS score distribution was used to categorize participants as having high (HI) or low (LI) impulsiveness traits. The analyses revealed that the PBI was smaller in the HI group compared to the LI group. Moreover, the PBI increased over blocks, but more slowly in the HI group than in the LI group. Overall, the current study demonstrates that (1) impulsiveness is associated with less dominant proactive control due to (2) a stronger reliance on reactive processes across blocks despite task demands.

What Process-Oriented TS Have to Say to FL Teaching

Research on translation processes using think-aloud protocols (TAPs) as the research design has recently received increasing attention in Translation Studies (TS). Such bulk of literature has produced many interesting findings about mental activities during the process of translation. In particular, it has helped uncover lexical search processes thanks to strategy identification through behavioral index-reading. The present paper surveys these studies with a particular eye on their potential use in the foreign language (FL) curriculum. Building on this analysis, an observational study is conducted which attempts to address how lexical failures in translation can be detected and re-directed in the ongoing translation process. The experience is to be considered a preliminary step for a systematic approach to the construction of experimental models in the field of process-oriented translation and reading-comprehension teaching.

Failed Suppression of Salient Stimuli Precedes Behavioral Errors

Our visual system is constantly confronted with more information than it can process. To deal with the limited capacity, attention allows us to enhance relevant information and suppress irrelevant information. Particularly, the suppression of salient irrelevant stimuli has shown to be important as it prevents attention to be captured and thus attentional resources to be wasted. This study aimed at directly connecting failures to suppress distraction with a neural marker of suppression, the distractor positivity (Pd). We measured participants' EEG signal while they performed a visual search task in which they had to report a digit inside a shape target while ignoring distractors, one of which could be a salient color singleton. Reports of target digits served as a behavioral index of enhancement, and reports of color distractor digits served as a behavioral index of failed suppression, each measured against reports of neutral distractor digits serving as a baseline. Participants reported the target identity more often than any distractor identity. The singleton identity was reported least often, suggesting suppression of the singleton below baseline. Suppression of salient stimuli was absent in the beginning and then increased throughout the experiment. When the singleton identity was reported, the Pd was observed in a later time window, suggesting that behavioral errors were preceded by failed suppression. Our results provide evidence for the signal suppression hypothesis that states salient items have to be actively suppressed to avoid attentional capture. Our results also provide direct evidence that the Pd is reflecting such active suppression.

The Relationship between Mammography and a Multi-factor Behavioral Index

Objective: In this study, we sought to determine whether a multi-factor behavioral index predicts mammography screening in US women. Methods: Women aged 50-75 years were enrolled in an intervention study and provided their vegetable intake, physical activity (PA), smoking, body mass index (BMI), and alcohol intake. Each factor was scored from 0 (least healthy) to 4 (most healthy) then summed to form a multi-factor behavioral index (ranging from 0-20). Self-report and medical records were used to determine mammography screening 6-months post-intervention. Logistic regression was used to estimate multivariable-adjusted odds ratios (OR) and 95% confidence intervals (CI) for the association with 6-month mammography. Results: The mean score for the multi-factor index was 11.8. An increased index score marginally predicted mammography adherence [OR = 1.05 (0.99-1.11)], with a stronger association among women receiving a doctor's recommendation for mammography [OR = 1.12 (1.04-1.20)]. Of the independent behavioral factors, high PA [OR = 1.13 (0.99-1.30), p = .075] and low BMI [OR = 1.25 (1.04-1.51), p = .017] were marginal and significant predictors of mammography, respectively. Conclusion: Women who engaged in a healthier behavioral lifestyle were more likely to utilize mammography screening, especially if they received a physician recommendation. Physicians should encourage mammography screening as part of a healthy behavioral lifestyle.

Improved Stage Categorization of PTZ-Induced Kindling and Late Enhanced Neurogenesis in PTZ Kindled Mice

Background: There is no universally accepted behavioral scoring to define the early development of phenothiazine (PTZ) kindling. Therefore, studies investigating alterations of neurogenesis in the PTZ model were mainly focused on full kindled animals rather than early stages of kindling. This study aimed to determine an appropriate behavioral index for categorizing stages of PTZ kindling progress and to evaluate neurogenesis during PTZ kindling. Materials and Methods: Twenty-four mice were intraperitoneally injected with a sub convulsive dose of PTZ (40mg/kg) every other day until they became full kindled. The first occurrence of different seizure behaviors and their durations were recorded during kindling development, and the different stages of kindling were categorized. Neurogenesis was evaluated in the lateral subventricular zone (SVZ) at each stage of kindling by immunofluorescence staining. Results: First occurrence of restlessness, motionless staring, hind limb tonic extension, Straub’s tail, myoclonic jerk, and tonic-clonic were sequentially observed in more than 80% of animals with increasing PTZ injections. The duration of the myoclonic jerk was significantly longer than the other seizure behaviors. The significantly higher percentage of BrdU-positive cells was found in SVZ of mice showing tonic-clonic in comparison to other seizure behaviors. Conclusion: A hierarchy behavior was observed during the kindling process when considering the first occurrence of seizure behaviors. We defined the first occurrence of restlessness, motionless, hind limb tonic extension and Straub’s tail behaviors as an early phase, myoclonic jerk as a borderline phase and tonic-clonic as a late phase of PTZ-induced kindling. Our results indicated an enhanced SVZ neurogenesis at the late phase of kindling. [GMJ.2019;8:e1511]

Long-term evidence of cultural agenda setting

The current study draws evidence from the Smithsonian Institution while examining a classic agenda-setting hypothesis during a period of 30 years in relation to media attention of the Smithsonian and a behavioral index of public salience, – namely its long-term, monthly visits. Second, it explores a larger theoretical concern often expressed by scholars in terms of the agenda-setting function over two different eras, the analog and the digital media periods.

EEG predicts the attention level of elderly measured by RBANS

Purpose This study aims to investigate the correlation between neural indexes of attention and behavioral indexes of attention and detect the most informative period of brain activity in which the strongest correlation with attentive performance (behavioral index) exists. Finally, to further validate the findings, this paper aims at the prediction of different levels of attention function based on the attention score obtained from repeatable battery for the assessment of neurophysiological status (RBANS). Design/methodology/approach The present paper analyzes electroencephalogram (EEG) signals recorded by a single prefrontal channel from 105 elderly subjects while they were responding to Stroop color test which is an attention-demanded task. Beside Stroop test, subjects also performed RBANS which provides their level of functionality in different domains including attention. After data acquisition (EEG during Stroop test and RBANS attention score), the authors extract the spectral features of EEG as neural indexes of attention and subjects’ reaction time in response to Stroop test as behavioral index of attention. Then, they explore the correlation between these post-cue frequency band oscillations of EEG with elderly response time (RT). Next, the authors exploit these findings to classify RBANS attention score. Findings The observations of this study suggest that there is significant negative correlation between alpha gamma ratio (AGR) and RT (p < 0.0001), theta beta ratio (TBR) is positively correlated with subjects’ RT (p < 0.0001), these correlations are stronger in a 500ms period right after triggering the cue (question onset in Stroop test), and 4) TBR and AGR can be effectively used to predict RBANS attention score. Research limitations/implications Because of the experiment design, the pre-cue EEG of the next trail was very much overlapped with the post-cue EEG of the current trail. Therefore, the authors could analyze only post-cue EEG. In future study, it would be interesting to investigate the predictability of subject’s future performance from pre-cue EEG and mental preparation. Practical implications This study provides an insight into the research on detection of human attention level from EEG instead of conventional neurophysiological tests. It has also potential to be used in implementation of feasible and efficient EEG-based brain computer interface training systems for elderly. Originality/value To the best of the authors’ knowledge, this study is among very few attempts for early prediction of cognitive decline in the domain of attention from brain activity (EEG) instead of conventional tests which are prone to human errors.