Blooming and pruning: learning from mistakes with memristive synapses.

Blooming and pruning is one of the most important developmental mechanisms of the biological brain in the first years of life, enabling it to adapt its network structure to the demands of the environment. The mechanism is thought to be fundamental for the development of cognitive skills. Inspired by this, Chialvo and Bak proposed in 1999 a learning scheme that learns from mistakes by eliminating from the initial surplus of synaptic connections those that lead to an undesirable outcome. Here, this idea is implemented in a neuromorphic circuit scheme using CMOS integrated HfO2-based memristive devices. The implemented two-layer neural network learns in a self-organized manner without positive reinforcement and exploits the inherent variability of the memristive devices. This approach provides hardware, local, and energy-efficient learning. A combined experimental and simulation-based parameter study is presented to find the relevant system and device parameters leading to a compact and robust memristive neuromorphic circuit that can handle association tasks.

How Are Different Perfectionism Traits Related to Mental Health in Students?

Multidimensional models of perfectionism postulate the existence of various perfectionism traits, with different effects on mental health. In order to suggest parsimonious targets in psychological interventions for university students, this study aimed to explore whether, how, and which individual perfectionism traits are uniquely associated with stress and well-being. The participants were 253 students aged 18-30 who completed the Frost Multidimensional Perfectionism Scale, the Perceived Stress Scale, and the Warwick-Edinburgh Mental Well-being Scale. Controlling for the common variance of perfectionism traits in statistical analysis, it was shown that (1) Personal Standards were associated with higher well-being and lower stress, (2) Concern over Mistakes and Doubts about Actions were related to lower well-being and higher stress, (3) Parental Expectations and Parental Criticism were not correlated with stress, and (4) Parental Criticism was associated with lower well-being. In the multi-predictor mediation model, with five perfectionism traits as predictors, perceived stress was a significant mediator between several perfectionism traits (i.e., Personal Standards, Concern over Mistakes, and Doubts about Actions) and well-being. Overall, Personal Standards, Concern over Mistakes, and Doubts about Actions seem to be parsimonious psychological targets, with Personal Standards expressing mental health-promoting effects, whereas Parental Expectations and Parental Criticism seem to be less important psychological targets.

Just Culture: How Do We Address Risky and Unprofessional Behaviors that Lead to Errors?

Unprofessional behavior in the procedural arena is associated with worse patient outcomes. This is thought to be due to breakdowns in communication structures and team dynamics. Behavioral issues are often uncovered during the investigation of serious event reports. Understanding differences in behavior deviations enables leadership to best address each type with an appropriate response. This allows institutions to address reckless behavior and unprofessionalism, while concomitantly creating a culture that fosters trust to promote self-reporting and sharing of information. These are characteristics of high-reliability organizations that produce sustained excellence in patient outcomes.

Perspective; high frequency of intraoperative errors due to extreme, oblique, and lateral lumbar interbody fusions (XLIF, OLIF, LLIF): Are they "safe"?

Background: Extreme Lateral Lumbar Interbody Fusions (XLIF), Oblique Lateral Interbody Fusion (OLIF,) and Lateral Lumbar Interbody Fusion (LLIF) were largely developed to provide indirect lumbar decompressions for spinal stenosis, deformity, and/or instability. Methods: Here, we have reviewed and updated the incidence of intraoperative errors attributed to XLIF, OLIF, and LLIF. Specifically, we focused on how often these procedures caused new neurological deficits, major vessel, visceral, and other injuries, including those warranting secondary surgery. Results: Performing XLIF, OLIF, and LLIF can lead to significant intraoperative surgical errors that include varying rates of; new neurological injuries (i.e. iliopsoas motor deficits (4.3-19.7-33.6-40%), proximal hip/upper thigh sensory loss/dysesthesias (5.1% to 21.7% to 40%)), life-threatneing vascular injuries (i.e., XLIF (0% - 0.4%-1.8%), OLIF (3.2%), and LLIF (2%) involving the aorta, iliac artery, inferior vena cava, iliac vein, and segmental arteries), and bowel/viscarl injuries (0.03%-0.4%) leading to reoperations (i.e., XLIF (1.8%) vs. LLIF (3.8%) vs. XLIF/LLIF/OLIF 2.2%)). Conclusion: Varying reports documented that XLIF, OLIF and LLIF caused up to a 40% incidence of new sensory/motor deficits, up to a 3.2% incidence of major vascular insults, a 0.4% frequency of visceral/bowel perforations, and a 3.8% need for reoperations. These high frequencies of intraoperative surgical errors attributed to XLIF, OLIF, and LLIF should prompt reconsideration of whether these procedures are "safe."

Mechanisms of Formation of Antibodies against Blood Group Antigens That Do Not Exist in the Body.

The system of the four different human blood groups is based on the oligosaccharide antigens A or B, which are located on the surface of blood cells and other cells including endothelial cells, attached to the membrane proteins or lipids. After transfusion, the presence of these antigens on the apical surface of endothelial cells could induce an immunological reaction against the host. The final oligosaccharide sequence of AgA consists of Gal-GlcNAc-Gal (GalNAc)-Fuc. AgB contains Gal-GlcNAc-Gal (Gal)-Fuc. These antigens are synthesised in the Golgi complex (GC) using unique Golgi glycosylation enzymes (GGEs). People with AgA also synthesise antibodies against AgB (group A [II]). People with AgB synthesise antibodies against AgA (group B [III]). People expressing AgA together with AgB (group AB [IV]) do not have these antibodies, while people who do not express these antigens (group O [0; I]) synthesise antibodies against both antigens. Consequently, the antibodies are synthesised against antigens that apparently do not exist in the body. Here, we compared the prediction power of the main hypotheses explaining the formation of these antibodies, namely, the concept of natural antibodies, the gut bacteria-derived antibody hypothesis, and the antibodies formed as a result of glycosylation mistakes or de-sialylation of polysaccharide chains. We assume that when the GC is overloaded with lipids, other less specialised GGEs could make mistakes and synthesise the antigens of these blood groups. Alternatively, under these conditions, the chylomicrons formed in the enterocytes may, under this overload, linger in the post-Golgi compartment, which is temporarily connected to the endosomes. These compartments contain neuraminidases that can cleave off sialic acid, unmasking these blood antigens located below the acid and inducing the production of antibodies.

Student mistakes and teacher reactions in bedside teaching.

We analyse interactions between teachers and students during video-recorded bedside teaching sessions in internal medicine, orthopaedics and neurology. Multiple raters used a high-inference categorical scheme on 36 sessions. Our research questions concern the types of student mistakes, clinical teachers' reactions to them and if they use different strategies to address different types of mistakes. We used a Poisson model and generalized mixed models to analyse these research questions. Most frequently, students made reproduction mistakes. Relatively high rates of rejection and a similar prevalence of low and high levels of elaboration and correction time for students were observed. Reproduction mistakes were associated with the highest level of rejection and the lowest level of elaboration. High levels of elaboration were observed when students were applying skills in new situations. Students were most often allowed time to correct when mistakes in the areas of analysis or application of skills and knowledge had occurred. There is a decrease in the rate of making mistakes for neurology and orthopaedics compared to internal medicine. Reproduction mistakes influence significantly the outcome feedback compared to application mistakes. Analytic and reproduction mistakes influence elaboration significantly compared to application mistakes. We found a significant effect whether the lecturer allows time for correction of reproduction mistakes compared to application mistakes. These results contribute to the understanding of interactive, patient-centred clinical teaching as well as student mistakes and how teachers are reacting to them. Our descriptive findings provide an empirical basis for clinical teachers to react to student mistakes in didactically fruitful ways.

Analysis of stone-free rates and residual fragment sizes following standard percutaneous nephrolithotomy: mistakes in the treatment of non-opaque kidney stones.

Our presented study aimed to evaluate the possible effects of stone opacity, on both the success of percutaneous nephrolithotomy and the sizes of residual fragments following the procedure. Medical records of patients undergoing PCNL treatment for kidney stones at our clinic between July 2014 and May 2022 were evaluated in a retrospective manner. A total sample size of 304 patients with the required criteria was included. Patients were divided into two groups based on the radiopacity status of the stones assessed in the kidney-ureter-bladder graphy (KUB) [Group O (n = 211): opaque, Group N (n = 93): non-opaque)]. Demographic data, laboratory results, and surgical follow-up information were comparatively evaluated between groups. The mean age and percentage of female patients were higher in Group N (45.2 vs. 25,1%; p < 0.001). Also, patients in this group were associated with more comorbidities. No significant difference was present regarding stones' laterality, size, surface area, and localization. Cases in the Group N group demonstrated higher median hemoglobin reduction [1.7 (IQR = 1.2-2.5) vs. 2 (IQR = 1.6-2.6); p = 0.047]. The stone-free rates in Group O patients were higher (67.8% vs. 53.8%; p = 0.014). The size of the residual fragments was meaningfully larger in Group N cases [8 (IQR = 7-13) vs. 10 (IQR = 8-16); p = 0.032]. Finally, no significant difference was observed between the groups regarding both minor (as grade 3a and below) and major (grade 3b and above) assessed by the Modified Clavien-Dindo Classification. Our data show that treatment of patients with so-called non-opaque kidney stones by PCNL results in low SFR and larger residual fragments, which is due to a variety of errors that should be avoided by appropriate measures.

Incidentes en oftalmología: estudio nacional en Argentina / Incidents in ophthalmology: A National Survey in Argentina

Resumen Objetivo: Realizar un análisis descriptivo de los incidentes en oftalmología reportados por médicos oftalmólogos de Argentina. Métodos: Se realizó un estudio basado en una encuesta desarrollada mediante un sistema electrónico, en agosto de 2021, dirigido a médicos oftalmólogos de Argentina. Se solicitó la descripción de incidentes oftalmológicos, clasificándolos en cuatro grupos, acorde a lo descrito por Organización Mundial de la Salud, en A: "Incidentes, casi-accidentes (no alcanzaron a los pacientes)"; B: "Incidentes (que alcanzaron al paciente, pero sin daño)"; C: "Incidentes prevenibles con daño" y D: "Incidentes no prevenibles con daño". El instructivo de la encuesta explicó la terminología y ofreció ejemplos de cada tipo de incidentes, que fueron evaluados mediante un proceso estadístico descriptivo. Resultados: Participaron 264 médicos oftalmólo gos quienes informaron 434 incidentes. A- Incidentes sin alcance al paciente: 125 casos (28.8%). B- Incidentes que alcanzaron al paciente sin daño: 117 casos. (27%). C- Incidentes prevenibles, con daño: 96 casos (22.1%). D- Incidentes no prevenibles con daño: 96 casos (22.1%). Los incidentes vinculados al uso de gotas fueron los más frecuentes en los 4 grupos (68, 75, 13 y 29 incidentes respectivamente). Conclusión: El 77.9% de los incidentes comunicados en este estudio se podrían haber evitado con adecuadas medidas de seguridad, siendo los más frecuentes los asociados a la utilización de gotas oftálmicas.

Abstract Objective: To perform a descriptive analysis of incidents in ophthalmology reported by ophthal mologists of Argentina. Methods: A questionnaire-based study was performed by an electronic survey during August 2021, including ophthalmologists of Argentina, requesting the description of ophthalmological incidents, which were classified in four groups, in accordance with World Health Organization Definition, as follow: A- "Inci dents, almost-accidents (patient no affected)"; B: "Incidents (patient affected without damage)"; C: "Preventable incidents, with damage", and D: "Not Preventable incidents, with damage". An instructive was supported in the survey explaining these definitions with examples of each kind of incidents. Data was processed for descriptive statistics. Results: The survey was performed by 264 ophthalmologists, reporting 434 incidents: A- Incidents, almost-accidents (patient not affected): 125 cases (28.8%). B- Incidents (patient affected without damage): 117 cases (27%). C- Preventable incidents, with damage: 96 cases (22.1%). D- "Not Preventable incidents, with damage: 96 cases (22.1%). In four groups the most frequent incidents were those associated with the use of ophthalmic drops (68, 75, 13, and 29 incidents respectively). Conclusion: Most of the incidents (77.9%) reported in this study could be avoided if appropriate safety measures were taken. Ophthalmic drops related incidents were the most frequent.

Mistakes in the diagnosis and treatment of Helicobacter pylori infection in daily clinical practice.

BACKGROUND: An adequate diagnostic and therapeutic approach to Helicobacter pylori (H. pylori) infection is the cornerstone to avoid overdiagnosis, overuse of health resources, and increase in antibiotic resistances. The aim of the study was to evaluate the most common errors in clinical practice and the associated risk factors. MATERIALS AND METHODS: This is a retrospective observational study including patients with H. pylori infection and no previous treatment belonging to two defined areas of the National Health System in Spain; some of them were enrolled in the European Registry on H. pylori management (Hp-EuReg). Patients were attended by gastroenterologists between 2010 and 2019. According to current guidelines, we evaluated indications for H. pylori investigation, appropriateness of diagnostic test used in dyspeptic patients and discontinuation of surveillance after treatment. RESULTS: A total of 1730 patients were included, receiving 2260 eradication regimens. H. pylori infection was investigated in 1.7% cases in absence of a formal indication. Oral endoscopy was incorrectly used in 56% of patients with dyspepsia under 55 years without alarm signs, and urea breath test (UBT) was incorrectly used in 22.4% of patients with dyspepsia ≥55 years or red flags. Levofloxacin containing regimens were used as first-line therapy in 7.5% of non-allergic to penicillin patients. After first-line failure, clarithromycin was repeated in 2.6% of the patients who received second-line therapy. Confirmatory test of H. pylori status was absent in 2.5% cases. Men, patients under 55 years, and patients diagnosed by UBT had a higher risk of not undergoing a confirmatory test. CONCLUSIONS: Investigation of H. pylori infection by gastroenterologists is rare in absence of a formal indication; however, endoscopy is commonly used for dyspeptic patients <55 years without red flags and non-invasive tests are still used for dyspeptic patients ≥55 years or presenting alarm signs. Men, patients under 55 years, and patients diagnosed by UBT have an increased risk of being lost to follow-up after eradication treatment.

[Incidents in ophthalmology: A National Survey in Argentina]. / Incidentes en oftalmología: Estudio Nacional en Argentina.

OBJECTIVE: To perform a descriptive analysis of incidents in ophthalmology reported by ophthalmologists of Argentina. METHODS: A questionnaire-based study was performed by an electronic survey during August 2021, including ophthalmologists of Argentina, requesting the description of ophthalmological incidents, which were classified in four groups, in accordance with World Health Organization Definition, as follow: A- "Incidents, almost-accidents (patient no affected)"; B: "Incidents (patient affected without damage)"; C: "Preventable incidents, with damage", and D: "Not Preventable incidents, with damage". An instructive was supported in the survey explaining these definitions with examples of each kind of incidents. Data was processed for descriptive statistics. RESULTS: The survey was performed by 264 ophthalmologists, reporting 434 incidents: A- Incidents, almost-accidents (patient not affected): 125 cases (28.8%). B- Incidents (patient affected without damage): 117 cases (27%). C- Preventable incidents, with damage: 96 cases (22.1%). D- Not Preventable incidents, with damage: 96 cases (22.1%). In four groups the most frequent incidents were those associated with the use of ophthalmic drops (68, 75, 13, and 29 incidents respectively). CONCLUSION: Most of the incidents (77.9%) reported in this study could be avoided if appropriate safety measures were taken. Ophthalmic drops related incidents were the most frequent.

OBJETIVO: Realizar un análisis descriptivo de los incidentes en oftalmología reportados por médicos oftalmólogos de Argentina. Métodos: Se realizó un estudio basado en una encuesta desarrollada mediante un sistema electrónico, en agosto de 2021, dirigido a médicos oftalmólogos de Argentina. Se solicitó la descripción de incidentes oftalmológicos, clasificándolos en cuatro grupos, acorde a lo descrito por Organización Mundial de la Salud, en A: "Incidentes, casi-accidentes (no alcanzaron a los pacientes)"; B: "Incidentes (que alcanzaron al paciente, pero sin daño)"; C: "Incidentes prevenibles con daño" y D: "Incidentes no prevenibles con daño". El instructivo de la encuesta explicó la terminología y ofreció ejemplos de cada tipo de incidentes, que fueron evaluados mediante un proceso estadístico descriptivo. RESULTADOS: Participaron 264 médicos oftalmólogos quienes informaron 434 incidentes. A- Incidentes sin alcance al paciente: 125 casos (28.8%). B- Incidentes que alcanzaron al paciente sin daño: 117 casos. (27%). C- Incidentes prevenibles, con daño: 96 casos (22.1%). D- Incidentes no prevenibles con daño: 96 casos (22.1%). Los incidentes vinculados al uso de gotas fueron los más frecuentes en los 4 grupos (68, 75, 13 y 29 incidentes respectivamente). Conclusión: El 77.9% de los incidentes comunicados en este estudio se podrían haber evitado con adecuadas medidas de seguridad, siendo los más frecuentes los asociados a la utilización de gotas oftálmicas.

The impact of obsessive-compulsive personality disorder in perfectionism.

OBJECTIVE: The construct of perfectionism has long been related to Obsessive-Compulsive Personality Disorder (OCPD), though research has not considered how OCPD could distinguish individuals with elevated perfectionism. The aim of this study was to evaluate clinical differences between those with and without OCPD in a sample of individuals with elevated perfectionism. METHODS: Seventy-four university students with elevated perfectionism completed a diagnostic assessment and several self-report measures of clinical characteristics and were randomly assigned to complete an exposure-based treatment for perfectionism or waitlist. Thirty-four (45.95%) participants met DSM-IV diagnostic criteria for OCPD. RESULTS: Compared to those without OCPD, individuals with OCPD had higher levels of general and specific domains of perfectionism and higher levels of social anxiety. OCPD diagnosis was also associated with higher rates of current anxiety disorder. Importantly, those with and without OCPD showed comparable benefits from treatment. CONCLUSIONS: This study provides novel evidence of the role of OCPD in perfectionism and demonstrates the efficacy of a perfectionism-oriented treatment in individuals with OCPD.Key pointsWe examined the role of obsessive-compulsive personality disorder (OCPD) in a high perfectionism sample.OCPD was associated with higher perfectionism and personal standards.OCPD was also associated with higher social anxiety and higher rates of current anxiety disorder.Those with and without OCPD had comparable responses to an exposure-based treatment for perfectionism.

Using Trainee Failures to Enhance Learning: A Qualitative Study of Pediatric Hospitalists on Allowing Failure.

INTRODUCTION: Attendings allow trainee failure when perceived educational benefits outweigh potential patient harm. This strategy has not been explored in pediatrics, where it may be shaped by unique factors. Our objectives were to understand if, when, and how pediatric hospitalists allow trainees to fail during clinical encounters. METHODS: Using constructivist grounded theory, we conducted semistructured interviews with 21 pediatric hospitalists from a children's hospital in the United States. Iterative, constant comparative analysis took place concurrent with data collection. During regular team meetings, we refined and grouped codes into larger themes. RESULTS: Nineteen of the 21 participants shared that they intentionally allowed failure as a teaching strategy, acknowledging this strategy's emotional power and weighing the educational benefits against harms to current and future patients, caregivers, and trainees. Participants described a multistep process for allowing failure: 1) initiate an orientation to signal that they prioritize a psychologically safe learning environment; 2) consider factors which influence their decision to allow failure; and 3) debrief with trainees. However, participants did not explicitly alert trainees to this teaching strategy. They also avoided using the word "failure" during debriefs to protect trainees from psychological harm. CONCLUSIONS: Most pediatric hospitalists in this study allowed failure for educational purposes. However, they did so cautiously, weighing the educational value of the failure against the safety of both current and future patients, the relationship with the caregivers, and the trainees' well-being. Future research should involve trainees to more comprehensively understand the experience and effectiveness of this teaching strategy.

Etiological and Clinical Features of Contact Lens-Associated Microbial Keratitis.

Objectives: To determine the demographic, etiological, microbiological, and clinical characteristics and present treatment results of contact lens (CL)-associated microbial keratitis (CLAMK). Materials and Methods: Medical records of patients who were followed in our clinic for CLAMK between January 2014 and May 2020 were retrospectively analyzed. Demographic characteristics, symptom duration, CL and usage characteristics, risk factors, isolated microorganisms, lesion characteristics, hospital stay, recovery and follow-up times, and best corrected visual acuities (BCVA) at first and last examination were recorded. Results: The 22 patients (16 females, 6 males; 22 eyes) had a mean follow-up time of 13.0±18.3 months and mean age of 26.9±14.3 years. Most of the female patients (13/16) were under 35 years old. At least one risk factor associated with improper CL usage was identified in 21 patients (95.4%). The most common risk factor was sleeping with CL (n=15, 68.1%). Causative microorganisms were detected on microbiological examination in 15 cases (68.1%). The most common microorganism was Pseudomonas aeruginosa (n=8). Causative pathogens were sensitive at rates of 84.2%, 95% and 94.7% to combined vancomycin/amikacin, combined vancomycin/ceftazidime, and moxifloxacin, respectively. Mean BCVA was 0.9±1.1 logMAR in the first examination and increased to 0.59±1.1 at last examination (p=0.006). There was a negative correlation between BCVA at presentation and length of hospital stay (p=0.014). Conclusion: Mistakes in CL use are a frequent predisposing factor in patients with CLAMK. Informing CL users in detail about CL usage and cleaning may reduce the frequency of these mistakes and thus infections. Current antibiotic options that should be preferred in empirical treatment remain largely effective against likely pathogens. Favorable visual outcomes can be obtained in most cases with detailed diagnostic examination and appropriate treatment approaches.

Computerized treatment of perfectionism through mistake making: A preliminary study.

BACKGROUND AND OBJECTIVES: Perfectionism has important implications for self-worth, personal standards, and psychopathology. The aim of this study was to test the efficacy of a novel two-week, computerized, exposure-based treatment for perfectionism (ETP). METHODS: Seventy-one university students with elevated perfectionism were randomized to either the ETP group (n = 36) or the waitlist (WL) control group (n = 35). The ETP group was asked to complete the intervention at home, every three days for two weeks for a total of five treatment sessions. The tasks in the ETP condition were engineered to have participants repeatedly make mistakes. All participants returned two weeks after the baseline visit for a post-treatment assessment. RESULTS: Compared to WL, ETP led to lower overall perfectionism, concern over mistakes, personal standards, depressive symptoms, social anxiety symptoms, and error sensitivity at post-treatment. No effects of treatment were found on trait anxiety, obsessive-compulsive symptoms, or eating disorder symptoms. LIMITATIONS: Participants were university students of similar age and education level, which restricts generalizability. Additionally, the study relied on a waitlist control condition. CONCLUSIONS: This study provided preliminary evidence for a novel online intervention for perfectionism.

Effect of Behavioral Precaution on Braking Operation of Elderly Drivers under Cognitive Workloads.

The number of accidents by elderly drivers caused by the erroneous tread of a brake pedal or accelerator pedal has increased. A recent study reported that the number of accidents could be reduced by preparing for braking mistakes due to driving behavior by using a simulator. However, related studies have pointed out that driving behavior in simulators does not always reflect driving behavior in the real world. This paper focuses on the posture of the left foot as a behavioral precaution and provides insights into braking mistakes by comparing behavioral precautions taken on simulators and on public roads. In the experimental results, cognitive and action errors increased with age, but elderly drivers are less likely to have an accident when they are exposed to the risk of collision in situations with a mental workload by making space for the right foot to step on the brake pedal. Elderly drivers with coping skills had their left foot perpendicular to the ground and their body was unstable. This result was different from the driving behavior in the simulator, but it was not possible to identify that this difference was the cause of the collision accidents. Coping skills were predicted with 70% accuracy from the left foot posture of an elderly driver near the intersection. We expanded the system's range of use and enhanced its usefulness by predicting coping skills derived from natural driving behavior in the real world. The contributions of this study are as follows. We clarify the effect of behavioral precautions on the braking operation of elderly drivers when under a cognitive workload. We provide new insights into the use of behavioral precautions in older drivers' braking operations in the real world. We predicted coping skills from natural driving behavior near intersections in the real world.

Learning from mistakes climate scale: Development and validation.

Learning from mistakes plays an important role in employee development; however, such a learning scale has not yet been developed. The objective of this study was to develop and examine the psychometric properties of the Learning from Mistakes Climate Scale (LMCS) in Malaysia. A pool of items was first developed based on the literature, with an expert panel then convened to select items that met the definition of learning from mistake climate in the workplace, specifically in Malaysia. The experts agreed on 23 items to be rated. In total, 554 working adults with a mean age of 32.28 were then recruited for this study. The LMCS was administered at baseline and 10-14 days later as a retest: 468 participants took part in the retest study, a dropout rate of 15.52%. Confirmatory factor analysis showed that the LMCS is a 17-item one-factor model. Validity, in its various forms, was supported, namely convergent validity, criterion validity, and predictive validity. Analysis also showed significant reliability, that is, test-retest reliability and in all intra-class correlations. The LMCS was found to be a valid and reliable instrument to assess the learning from mistake climate in Malaysia. This is the first scale in the organizational learning climate literature to integrate the mistake tolerance aspect. This instrument can assist in creating a psychologically safe work environment that helps to facilitate learning, especially in a highly hierarchical, collectivistic culture that is high in power distance.

When your PhD (almost) falls apart.

As a chance observation threatens to unravel several years of work, a PhD student must decide how to respond.

Mistakes strengthen the temporal binding effect in the context of goal-directed actions.

Temporal binding is an illusion in which the temporal interval between two events appears compressed. In the context of intentional actions, this effect is observed as a compression of the perceived interval between these actions and their causal outcomes. This 'intentional binding effect' has been used to investigate the Sense of Agency, which is the experience of intentionally causing an outcome through volitional action. Intentional binding is reduced for negative outcomes such as error feedback, but the role of mistakes (e.g., errors of commission) for binding and agency has not been extensively studied. In our study, participants played a virtual game in which they attempted to 'splat' (hit) visual stimuli that looked like coloured bugs, using mouse clicks. On some trials, stimulus colours changed unpredictably immediately before actions were made, sometimes inducing mistakes. Actions were thus clearly identifiable as mistakes at the time of their onset before any outcome feedback had been provided. Participants reported shorter action-outcome intervals when stimuli changed, but only when this change caused a mistake according to the game's rules. This suggests that intentional binding is strengthened by errors of commission. We discuss how this effect may be accounted for by agency itself and via more general processes such as changes in arousal.

The Associations Among Self-Compassion, Self-Esteem, Self-Criticism, and Concern Over Mistakes in Response to Biomechanical Feedback in Athletes.

Athletes regularly face the possibility of failing to meet expectations in training and competition, and it is essential that they are equipped with strategies to facilitate coping after receiving performance feedback. Self-compassion is a potential resource to help athletes manage the various setbacks that arise in sport over and above other psychological resources. The primary purpose of this research was to explore how athletes respond to objective biomechanical feedback given after a performance. Specifically, we investigated if levels of self-compassion, self-esteem, self-criticism, and concern over mistakes were related to one another before and after a series of sprint tests interspersed with biomechanical feedback, and whether self-compassionate athletes achieved a better sprint performance after receiving and implementing biomechanical feedback. Forty-eight athletes (20 female: M age = 19.8 years, SD = 3.1; 28 male: M age = 23.6 years, SD = 7.8) completed online measures of self-compassion, self-esteem, self-criticism and concern over mistakes before performing four sets of 40-m sprints. Participants received personalized biomechanical feedback after each sprint that compared their performance to gold standard results. Following all sprints, they then completed measures of self-criticism, and reported emotions, thoughts, and reactions. Self-compassion was positively correlated with self-esteem (r = 0.57, p < 0.01) and negatively related to both self-criticism (r = -0.52, p < 0.01) and concern over mistakes (r = -0.69, p < 0.01). We also found that athletes with higher levels of self-compassion prior to sprint performance experienced less self-critical thoughts following biomechanical feedback and subsequent sprint trials (r = -0.38, p < 0.01). Although the results of this study provide some support for the effectiveness of self-compassion in promoting healthy emotions, thoughts, and reactions in response to sprint performance-based biomechanical feedback, a moderated regression analysis between the first and fourth sprint time variables revealed that self-compassion was not a moderator for change in sprint performance (R 2 = 0.64, ΔR 2 = 0.10, p > 0.05). These findings suggest that there are likely longer-term benefits of athletes using self-compassion to cope with biomechanical feedback, but that any benefits might be limited in a short series of sprint trials.