Introducing and validating a single-item measure of identity leadership: The visual identity leadership scale (VILS)

In the present research, we introduce and validate a single-item measure of identity leadership-the visual identity leadership scale (VILS). The VILS uses Venn diagrams of sets of overlapping circles to denote different degrees of alignment between a leader's characteristics and behaviours and a group's values and goals. Key advantages of the VILS over other existing multi-item scales are that it provides a holistic assessment of identity leadership, is short, and can be adapted to address novel research questions that are impractical to address with existing scales (e.g. in diary studies, assessing multiple comparisons of many leaders or groups). Data from three studies (conducted in India, the United States and Germany) provide evidence of the VILS' construct reliability and validity. Results also showcase the instrument's capacity to be adapted to assess variations of identity leadership-for example, by assessing a leader's convergence with descriptive and ideal notions of collective self (i.e. with 'who we are' and 'who we want to be'). We discuss the value of including the VILS in the toolbox that researchers and practitioners can utilize to expand our understanding of identity processes in leadership and group behaviour.

Adaptation and Validation of the MapMe Body Image Scales in Spanish Parents of Schoolchildren

Childhood overweight and obesity is a worldwide problem and to treat it parents' detection has to be improved. The MapMe Body Image Scales (BIS) are a visual tool developed to improve parental perception of child weight in the United Kingdon (UK) based on British growth reference criteria. The aim of this study was to make a transcultural adaptation and validation of the MapMe BIS in Spain based on International Obesity Task Force (IOTF) cut offs A descriptive cross-sectional study was done. First, a translation and cultural adaptation was carried out. A total of 155 10-11-year-old children and their parents participated in this study. Children were measured to calculate their weight status, Body Mass Index (BMI), Body Fat Percentage (BFP) and Waist Circumference (WC), and their parents completed a purpose designed questionnaire about their perception and satisfaction of child's body weight status using the adapted BIS. Test-retest reliability, criterion validity and concurrent validity of the adapted BIS were analyzed. This study shows that the adapted MapMe BIS has good psychometric properties and is a suitable visual scale to assess parental perception of weight status in 10 and 11-year-old children in Spain.

Food Intake Visual Scale-A practical tool for assessing the dietary intake of hospitalized patients with decompensated cirrhosis

BACKGROUND

The aim of this study was whether the Food Intake Visual Scale (FIVS) can be used in clinical practice to measure food intake in patients with decompensated cirrhosis.

METHODS

A cross-sectional study was performed with patients with cirrhosis between April 2017 and July 2019. The food intake was assessed through the 1-day diet record (DR) and according to FIVS, which consists of pictures of four plates of food at different levels of consumption: "about all," "half," "a quarter," or "nothing." The analysis of variance test with Bonferroni multiple comparison analysis was used to compare the mean energy intake through the DR according to the FIVS categories.

RESULTS

This study included 94 patients with a mean age of 60.29 ± 9.33 years. Patients with lower food intake according to the FIVS categories also had lower mean energy and macronutrient intake according to the DR: patients eating "about all" (n = 49, 52.1%) consumed a mean of 1526.58 ± 428.27 kcal/day, patients eating "half" (n = 16, 17%) consumed a mean of 1282.08 ± 302.83 kcal/day, patients eating "a quarter" (n = 25, 26.6%) consumed a mean of 978.96 ± 468.81 kcal/day, and patients eating "nothing" (n = 4, 4.3%) consumed a mean of 353.59 ± 113.16 kcal/day (P < .001).

CONCLUSION

The results of this study demonstrate that FIVS can be implemented in clinical practice to measure food intake in patients with decompensated cirrhosis as a substitute for the DR because it is a noninvasive, low-cost, quick, reliable, and easy bedside method for obtaining data.

Minimal theory of 3D vision: new approach to visual scale and visual shape

Since Kepler and Descartes in the early-1600s, vision science has been committed to a triangulation model of stereo vision. But in the early-1800s, we realized that disparities are responsible for stereo vision. And we have spent the past 200 years trying to shoe-horn disparities back into the triangulation account. The first part of this article argues that this is a mistake, and that stereo vision is a solution to a different problem: the eradication of rivalry between the two retinal images, rather than the triangulation of objects in space. This leads to a 'minimal theory of 3D vision', where 3D vision is no longer tied to estimating the scale, shape, and direction of objects in the world. The second part of this article then asks whether the other aspects of 3D vision, which go beyond stereo vision, really operate at the same level of visual experience as stereo vision? I argue they do not. Whilst we want a theory of real-world 3D vision, the literature risks giving us a theory of picture perception instead. And I argue for a two-stage theory, where our purely internal 'minimal' 3D percept (from stereo vision) is linked to the world through cognition. This article is part of a discussion meeting issue 'New approaches to 3D vision'.

Vascular Lesions and Brain Atrophy in Alzheimer's, Vascular and Mixed Dementia: An Optimized 3T MRI Protocol Reveals Distinctive Radiological Profiles

BACKGROUND

Vascular lesions may be a common finding also in Alzheimer's dementia, but their role on cognitive status is uncertain.

OBJECTIVE

The study aims to investigate their distribution in patients with Alzheimer's, vascular or mixed dementia and detect any distinctive neuroradiological profiles.

METHODS

Seventy-six subjects received a diagnosis of Alzheimer's (AD=32), vascular (VD=26) and mixed (MD=18) dementia. Three independent raters assessed the brain images acquired with an optimized 3T MRI protocol (including (3D FLAIR, T1, SWI, and 2D coronal T2 sequences) using semiquantitative scales for vascular lesions (periventricular lesions (PVL), deep white matter lesions (DWML), deep grey matter lesions (DGML), enlarged perivascular spaces (PVS), and microbleeds (MB)) and brain atrophy (medial temporal atrophy (MTA), posterior atrophy (PA), global cortical atrophy- frontal (GCA-F) and Evans' index).

RESULTS

Raters reached a good-to-excellent agreement for all scales (ICC ranging from 0.78-0.96). A greater number of PVL (p<0.001), DWML (p<0.001), DGML (p=0.010), and PVS (p=0.001) was observed in VD compared to AD, while MD showed a significant greater number of PVL (p=0.001), DWML (p=0.002), DGML (p=0.018), and deep and juxtacortical MB (p=0.006 and p<0.001, respectively). Comparing VD and MD, VD showed a higher number of PVS in basal ganglia and centrum semiovale (p=0.040), while MD showed more deep and juxtacortical MB (p=0.042 and p=0.022, respectively). No significant difference was observed in scores of cortical atrophy scales and Evans' index among the three groups.

CONCLUSION

The proposed MRI protocol represents a useful advancement in the diagnostic assessment of patients with cognitive impairment by more accurately detecting vascular lesions, mainly microbleeds, without a significant increase in time and resource expenditure. Our findings confirm that white and grey matter lesions predominate in vascular and mixed dementia, whereas deep and juxtacortical microbleeds predominate in mixed dementia, suggesting that cerebral amyloid angiopathy could be the main underlying pathology.

Does Vergence Affect Perceived Size?

Since Kepler (1604) and Descartes (1637), it has been suggested that 'vergence' (the angular rotation of the eyes) plays a key role in size constancy. However, this has never been tested divorced from confounding cues such as changes in the retinal image. In our experiment, participants viewed a target which grew or shrank in size over 5 s. At the same time, the fixation distance specified by vergence was reduced from 50 to 25 cm. The question was whether this change in vergence affected the participants' judgements of whether the target grew or shrank in size? We found no evidence of any effect, and therefore no evidence that eye movements affect perceived size. If this is correct, then our finding has three implications. First, perceived size is much more reliant on cognitive influences than previously thought. This is consistent with the argument that visual scale is purely cognitive in nature (Linton, 2017; 2018). Second, it leads us to question whether the vergence modulation of V1 contributes to size constancy. Third, given the interaction between vergence, proprioception, and the retinal image in the Taylor illusion, it leads us to ask whether this cognitive approach could also be applied to multisensory integration.

Development and validation of a global photonumeric scale for evaluating skin quality of aged female facial skin

BACKGROUND

Skin quality plays an important role in overall attractiveness. However, so far, no visual grading scales have been published while their development seems to be an essential key step to provide validated grading scales for the evaluation of efficacy of minimally invasive procedures and cosmeceuticals aims on the improvement of skin quality, esthetic research, and clinical application.

OBJECTIVES

To develop and validate a visual five-point assessment scale for the evaluation of skin quality of female facial skin.

METHODS

The five-point photonumeric Scientific Assessment Scale of Skin Quality is based on six parameters. Fifty standardized photos were rated by 13 experts. This examination was carried out in two cycles with an interval of 4 weeks. The intraclass correlation coefficient contributes to the identification of the inter-rater and intrarater reliability.

RESULTS

Statistical analysis investigated six specific and two general parameters: The results of inter- and intrarater reliability for skin elasticity (ICC 0.816; ICC 0.883), wrinkles (ICC 0.840; 0.885), and age (ICC 0.885; 0.925) were almost perfect. The reliabilities for pigmentation (ICC 0.637; ICC 0.797), erythema (ICC 0.688; ICC 0.797), and overall skin quality (ICC 0.652; ICC 0.756) were substantial and for pore size moderate (ICC 0.405; ICC 0.584). Skin surface roughness (ICC 0.480; ICC 0.645) indicated a substantial intrarater reliability and a moderate interrater reliability. These data revealed good and excellent results.

CONCLUSIONS

The Scientific Assessment Scale of Skin Quality represents an innovative universal and reliable measurement instrument for a valid and reproducible evaluation of six parameters of aged female facial skin quality.

The Parietal Atrophy Score on Brain Magnetic Resonance Imaging is a Reliable Visual Scale

Aims

The purpose of the study was to evaluate the reliability of our new visual scale for a quick atrophy assessment of parietal lobes on brain Magnetic Resonance Imaging (MRI) among different professionals. A good agreement would justify its use for differential diagnosis of neurodegenerative dementias, especially early-onset Alzheimer’s Disease (AD), in clinical settings.

Methods

The visual scale named the Parietal Atrophy Score (PAS) is based on a semi-quantitative assessment ranging from 0 (no atrophy) to 2 (prominent atrophy) in three parietal structures (sulcus cingularis posterior, precuneus, parietal gyri) on T1-weighted MRI coronal slices through the whole parietal lobes. We used kappa statistics to evaluate intra-rater and inter-rater agreement among four raters who independently scored parietal atrophy using PAS. Rater 1 was a neuroanatomist (JM), rater 2 was an expert in MRI acquisition and analysis (II), rater 3 was a medical student (OP) and rater 4 was a neurologist (DS) who evaluated parietal atrophy twice in a 3-month interval to assess intra-rater agreement. All raters evaluated the same 50 parietal lobes on brain MRI of 25 cognitively normal individuals with even distribution across all atrophy degrees from none to prominent according to the neurologist’s rating.

Results

Intra-rater agreement was almost perfect with the kappa value of 0.90. Inter-rater agreement was moderate to substantial with kappa values ranging from 0.43-0.86.

Conclusion

The Parietal Atrophy Score is the reliable visual scale among raters of different professions for a quick evaluation of parietal lobes on brain MRI within 1-2 minutes. We believe it could be used as an adjunct measure in differential diagnosis of dementias, especially early-onset AD.

Developing the Multidimensional Visual Scale Assessing Affect, Anxiety, Pride, and Energy Through a Research Partnership with Autistic Scholars

Autism research studies have traditionally failed to represent the full diversity of the autism spectrum due to the lack of measures available for use with participants who prefer to express themselves visually. A multidimensional measure of emotions, which can include both picture- and text-based prompts, may improve accessibility of emotion rating measures and broaden participation in research and educational evaluations to include those who communicate in diverse ways. Picture-based measures designed to assess participants' emotions may be useful for research concerning autistic identity and service evaluation, two areas where representation of diverse perspectives is needed. Our participatory group of autistic and nonautistic researchers developed a Multidimensional Visual Scale Assessing Affect, Anxiety, Pride, and Energy (AAPE) by adapting and expanding upon an existing emotion rating scale. When testing the AAPE with autistic college students (n = 72), their open-ended responses indicated that the AAPE's dimensions of affect (97.2% correct), anxiety (79.2% correct), and energy (84.7% correct) were well comprehended without text-based labels with potential for improvement in how pride (52.8% correct) was represented. When provided with the labels that each dimension was intended to represent, participants generally agreed that each emotional dimension was well represented. When tested in an informal educational summer camp with autistic children and adolescents (n = 50), the AAPE was well received and revealed insights about the students' emotional responses to different instructional strategies that can guide curricular improvements. The AAPE has utility as a tool to help diverse autistic individuals self-advocate and improve research and services.

Lay summary

Why was this study done?: There are very few tools that autistic people can use to share how they feel. We wanted to develop a tool to help autistic people express their emotions using pictures. Pictures can help autistic people share how they feel.What was the purpose of this study?: We wanted to make an easy-to-understand tool that autistic people can use to share how they feel.What did the researchers do?: Our research group is participatory, meaning that autistic and nonautistic researchers worked together to make our tool. An autistic artist drew the tool. We called it the AAPE, which stands for the emotions it assesses: Affect, Anxiety, Pride, and Energy. We worked together to see how well the AAPE worked. We used a survey to see if autistic high school and college students understood our first try at the AAPE and we learned how to make the AAPE better from these students. We worked together to make the AAPE better. Then, we did another survey with autistic college students to see if our second try at the AAPE worked better. Then, we asked autistic kids and teenagers to use the AAPE to share how they felt about different ways of teaching.What were the results of the study?: In our final test, we asked 72 autistic college students to tell us what emotions they thought the AAPE was showing. College students thought that affect (97.2%), anxiety (79.2%), and energy (84.7%) showed the emotions we aimed to show with room for improvement in how pride (52.8%) was shown. After we told participants which emotion each scale was showing, they agreed that affect (average score 4.28 of 5) and anxiety (4.29 of 5) showed the emotions best, followed by energy (4.08 of 5) and pride (3.5 of 5) on a scale from 1 to 5 (strongly agree).Students preferred using the AAPE compared with text-based surveys we used in the past. Results showed that the AAPE does a good job at measuring emotions. Edits may still be needed to better show "pride." Work is needed with nonspeaking people to make sure our measure works well for people who communicate in different ways.What are potential weaknesses in the study?: The autistic adolescents and adults we have tested the AAPE with so far have not been very diverse. We did not include participants who communicate without speaking in these first tests of the AAPE. We plan to use the AAPE with more diverse groups in future studies.How will these findings help autistic adults now or in the future?: In a future study, we will use the AAPE to rate pictures that show experiences of being autistic, like feeling outside a social group, having sensory difficulties, and making patterns. We would like to do this because some studies talk about negative experiences of autism, like feeling the need to hide autistic traits, but other studies describe strengths of autism, like strong memories and advanced knowledge in particular subjects. However, these studies do not talk about the emotions that come with these experiences and if these experiences are shared with autistic people who do not use speech to communicate. The AAPE is a tool that might help us understand how diverse autistic people feel about autism.

The Danish Scale for visual rating of massive weight loss body contours. Conceptualization and construct

The 'Danish Scale' (DS) is a visual rating scale of massive weight loss body contour deformities and excessive skin in female MWL-patients with current BMI < 30 kg/m² and massive weight loss defined as BMI loss (delta-BMI) > 15 kg/m², regardless of weight loss method. The scope of the scale is to simplify the reporting of objective findings by a three-step grading of minor, moderate and severe body contour changes in six different body regions: breasts, abdomen, upper back, buttocks, arms and legs. The DS is presented with descriptions of the conceptualization and construct of the scale. It provides a new visual reference tool for indications and preoperative planning in MWL body contouring, that is specific for the post-MWL BMI-range between 21 and 30 kg/m² and, at the same time, simpler than previous scales. The scale combines evaluations of different and adjacent body regions in a simple manner and presents modern cut-off points for health insurance reimbursement for MWL body contouring as offered in the Danish public health care system. The DS was developed by repeat expert discussions until final nationwide consensus was reached and can act as an adjunct to the written guidelines by the National Board of Health in Denmark.

Visual assessment of the similarity between a patient and trial population: Is This Clinical Trial Applicable to My Patient?

BACKGROUND

A critical consideration when applying the results of a clinical trial to a particular patient is the degree of similarity of the patient to the trial population. However, similarity assessment rarely is practical in the clinical setting. Here, we explore means to support similarity assessment by clinicians.

METHODS

A scale chart was developed to represent the distribution of reported clinical and demographic characteristics of clinical trial participant populations. Constructed for an individual patient, the scale chart shows the patient's similarity to the study populations in a graphical manner. A pilot test case was conducted using case vignettes assessed by clinicians. Two pairs of clinical trials were used, each addressing a similar clinical question. Scale charts were manually constructed for each simulated patient. Clinicians were asked to estimate the degree of similarity of each patient to the populations of a pair of trials. Assessors relied on either the scale chart, a summary table (aligning characteristics of 2 trial populations), or original trial reports. Assessment time and between-assessor agreement were compared. Population characteristics considered important by assessors were recorded.

RESULTS

Six assessors evaluated 6 cases each. Using a visual scale chart, agreement between physicians was higher and the time required for similarity assessment was comparable.

CONCLUSION

We suggest that further research is warranted to explore visual tools facilitating the choice of the most applicable clinical trial to a specific patient. Automating patient and trial population characteristics extraction is key to support this effort.

A simple tool to evaluate common disorders: validation of a "proctological symptom scale"

PURPOSE

Proctological symptomatology is of little complexity and therefore appears particularly suitable for comparative evaluation by visual scales. We devised a "proctological symptom scale" (PSS) with separate scales for four cardinal proctological symptoms: pain, itching/irritation, discharge/moisture, and bleeding. The objective of this study was to evaluate the PSS among proctological patients and non-proctological controls.

METHODS

This was a single center non-interventional observational study on 229 proctological patients and 133 controls. The main outcome measures investigated were age- and sex-stratified comparison of the non-proctological cohort and the controls, effect of therapeutic intervention on scale values in a subset of patients with haemorrhoidal disease, and sensitivity of the PSS to detect therapeutic failure in this subset of patients.

RESULTS

The PSS was found to significantly differentiate between proctological patients and controls. Gender and age had no significant influence on PSS values in the proctological cohort. The intervention (one session of rubber band ligation in patients with haemorrhoidal disease) was reflected by a significantly improved overall PSS. In 16 cases within this group, the PSS got worse. A case-by-case follow-up of these patients showed that 14 of the 16 patients ended up with surgery (or with the advice to have surgery).

CONCLUSIONS

The PSS reliably differentiates proctological patients from non-proctological controls. Following intervention, the PSS reliably differentiated therapeutic success from failure. We find the PSS to be a simple and useful tool in our clinical routine since it provides an easily obtainable and reproducible basis for the visit-by-visit assessment of proctological patients. The PSS may also be suitable for studies to measure and compare symptomatic improvement and success of different therapies in proctology.