Subjective Preference Research Articles

Comparison of vision performance of spectacles prescribed to 0.05D versus 0.25D steps

ABSTRACT Clinical relevance Traditionally, refraction is performed, and spectacles are manufactured in in 0.25D-steps. Trial and spectacle lenses manufactured in smaller increments may allow for a more accurate refraction and prescribed spectacles. Background To determine whether refraction in 0.05D-steps improves the proportion of eyes achieving achieve duochrome equality, and whether spectacles prescribed in 0.05D-steps offer any vision benefits, compared to 0.25D-steps. Methods Myopic young adults were enrolled into two prospective studies conducted at different sites. Study 1 comprised 66 participants (refracted under cycloplegia) while Study 2 comprised 51 participants (not cyclopleged). A standard refraction was performed in both studies and a trial frame and trial lenses were used to determine the spherical endpoint of duochrome equality (0.25D-steps first then 0.05D-steps). In Study 2, the cylindrical component was refined in 0.05D-steps before the spherical endpoint in 0.05D-steps. Monocular high-contrast-visual-acuity (HCVA) was measured while wearing the final refractions. Participants in Study 2 wore spectacles manufactured in 0.25D and 0.05D-steps for 7 days each in a randomized, double-masked study. Both spectacles appeared identical. Outcome measures assessed on dispensing and after 7 days of wear comprised monocular acuity-based measurements (HCVA, low-contrast-visual-acuity, vanishing-optotype-acuity, contrast-sensitivity) and subjective ratings. The Quality-of-Vision questionnaire and subjective preference were assessed after 7 days. Results Both studies showed a higher proportion of eyes achieved duochrome equality (P < 0.001) and better average monocular HCVA (P ≤ 0.006) in 0.05D-steps. Study 2 showed 0.05D-step spectacles provided better average results for all monocular acuity-based measurements (P < 0.006) and were preferred by 65% (P = 0.04) of participants after 7 days (P = 0.04). There were no differences between spectacles for any other measures (P > 0.1). Conclusions Refraction performed, and spectacles manufactured in 0.05D-steps for this study improved average acuity-based outcomes and were preferred by most participants to spectacles in traditional 0.25D-steps.

Adaptive thermal comfort of residential buildings in the composite climatic region of India: a field study

ABSTRACT This paper presents the results of an adaptive thermal comfort field study conducted in the naturally ventilated residential buildings in the composite climate type of India over three main seasons i.e. monsoon, winter, and summer using ASHRAE’s class II field measurements protocols. 768 measurements were collated wherein subjective thermal comfort sensation, preference, and acceptance for indoor environment variables were thoroughly explored along with the adaptive actions of the users for four different times during a day. Correlation analysis helped decipher the relationship between subjective votes and thermal comfort evaluation parameters. Thermal environment acceptance during monsoon season and morning time was highest however the same was found lower during summers and afternoons. The middle age group had the lowest acceptance and well-acclimatized non-native participants had a good thermal acceptance. Education also affects thermal acceptance and it decreases with increasing education level. The comfort temperature and adaptive comfort equation were also studied and results were compared with national and international thermal comfort standards. This study predicted a wider thermal comfort range of 12.23–34.45°C and indicated revising TSI, the first thermal comfort index for Indian Subjects.

Salty taste test for a low-salt diet to control blood pressure

BackgroundReducing salt intake helps prevent complications of cerebrovascular disease. To help patients accept a low-sodium diet, the salty taste test is used to evaluate how much salt an individual actually consumes. The aim of this study was to help patients with hypertension reduce their salt intake by helping them recognize the difference between their subjective perception of saltiness and the objective test results.MethodsWe enrolled workers who visited a local occupational health institution in the period from April to August 2019. Demographic and physical characteristics were recorded. Blood pressure measurement and use of medication were also recorded. A questionnaire was used to investigate whether people liked or disliked salty food, i.e., preference for saltiness, and whether they usually ate salty, normal, or fresh food, i.e., the subjective perception of saltiness. Subsequently, the taste determination kit provided by the Ministry of Food and Drug Safety was used to objectively test saltiness at various salty taste concentrations. The Ministry of Food and Drug Safety program (No. 10-093760) was used as the salty taste judgment tool.ResultsA total of 86 workers were surveyed. Eleven of 18 workers (61.1%) who reported usually eating fresh food actually ate normal or salty food. Thirteen of 37 workers (35.1%) who reported eating normal food actually ate salty food. Thirteen of 31 workers (41.9%) who reported eating salty food actually ate fresh or normal food. Of 46 workers who reported disliking salty food, 14 (30.4%) actually ate salty food, while 20 (43.5%) ate normal food. The subjective perception and preference for saltiness were not significantly correlated with the objective test results (P = ​​0.085 and P = 0.110, respectively). As for the subjective perception and preference for saltiness, Cohen’s weighted kappa for the taste judgment result were 0.23 and 0.22, respectively, indicating a low degree of agreement.ConclusionsIn dietary counseling to prevent cerebrovascular and cardiovascular diseases, rather than relying on the subjective perception of saltiness, a salty taste test should be performed such that people can recognize their salty food eating habits through objective evaluation.

Imaging-based frequency mapping for cochlear implants - Evaluated using a daily randomized controlled trial.

Due to variation in electrode design, insertion depth and cochlear morphology, patients with a cochlear implant (CI) often have to adapt to a substantial mismatch between the characteristic response frequencies of cochlear neurons and the stimulus frequencies assigned to electrode contacts. We introduce an imaging-based fitting intervention, which aimed to reduce frequency-to-place mismatch by aligning frequency mapping with the tonotopic position of electrodes. Results were evaluated in a novel trial set-up where subjects crossed over between intervention and control using a daily within-patient randomized approach, immediately from the start of CI rehabilitation. Fourteen adult participants were included in this single-blinded, daily randomized clinical trial. Based on a fusion of pre-operative imaging and a post-operative cone beam CT scan (CBCT), mapping of electrical input was aligned to natural place-pitch arrangement in the individual cochlea. That is, adjustments to the CI's frequency allocation table were made so electrical stimulation of frequencies matched as closely as possible with corresponding acoustic locations in the cochlea. For a period of three months, starting at first fit, a scheme was implemented whereby the blinded subject crossed over between the experimental and standard fitting program using a daily randomized wearing schedule, and thus effectively acted as their own control. Speech outcomes (such as speech intelligibility in quiet and noise, sound quality and listening effort) were measured with both settings throughout the study period. On a group level, standard fitting obtained subject preference and showed superior results in all outcome measures. In contrast, two out of fourteen subjects preferred the imaging-based fitting and correspondingly had better speech understanding with this setting compared to standard fitting. On average, cochlear implant fitting based on individual tonotopy did not elicit higher speech intelligibility but variability in individual results strengthen the potential for individualized frequency fitting. The novel trial design proved to be a suitable method for evaluation of experimental interventions in a prospective trial setup with cochlear implants.

Concurrent Choice Assessment of Preference and Substitutability of E-cigarettes and Heated Tobacco Products for Combustible Cigarettes Among African American and White Smokers.

Alternative nicotine delivery products, including electronic cigarettes (e-cigarettes) and heated tobacco products (HTPs), contain fewer toxicants than combustible cigarettes and offer a potential for harm reduction. Research on the substitutability of e-cigarettes and HTPs is crucial for understanding their impact on public health. This study examined subjective and behavioral preferences for an e-cigarette and HTP relative to participants' usual brand combustible cigarette (UBC) in African American and White smokers naïve to alternative products. Twenty-two adult African American (n = 12) and White (n = 10) smokers completed randomized study sessions with their UBC and study provided e-cigarette and HTP. A concurrent choice task allowed participants to earn puffs of the products but placed UBC on a progressive ratio schedule, making puffs harder to earn, and e-cigarette and HTP on a fixed ratio schedule to assess behavioral preference for the products. Behavioral preference was then compared to self-reported subjective preference. Most participants had a subjective preference for UBC (n = 11, 52.4%), followed by an equal preference for e-cigarette (n = 5, 23.8%) and HTP (n = 5, 23.8%). During the concurrent choice task, participants showed a behavioral preference (i.e., more earned puffs) for the e-cigarette (n = 9, 42.9%), followed by HTP (n = 8, 38.1%), and UBC (n = 4, 19.1%). Participants earned significantly more puffs of the alternative products compared to UBC (p = .011) with no difference in earned puffs between e-cigarettes and HTP (p = .806). In a simulated lab setting, African American and White smokers were willing to substitute UBC for an e-cigarette or HTP when the attainment of UBC became more difficult. NCT04646668. Findings suggest that African American and White smokers are willing to substitute their UBC for an alternative nicotine delivery product (e-cigarette or HTP) when the attainment of cigarettes became more difficult in a simulated lab setting. Findings require confirmation among a larger sample under real-world conditions but add to growing evidence suggesting the acceptability of alternative nicotine delivery products among racially diverse smokers. These data are important as policies that limit the availability or appeal of combustible cigarettes are considered or enacted.

Time Discounting and Hand-Sanitization Behavior: Evidence from Japan

Whether non-compliance with hand sanitization is related to impatience or impulsivity is an unresolved issue. Several studies have argued that not maintaining hand sanitization requirements during a pandemic could relate to impatience or impulsivity. However, the impatience or impulsivity of hand sanitization needs to be investigated in pandemic-free situations, as government requirements for hand sanitization influence subjective preferences. Little research, however, has examined such associations in pandemic-neutral scenarios. To fill this gap, this study assesses the role of two aspects of time discounting—hyperbolic discounting and impatience—in influencing hand-sanitizing behavior in Japan. The study utilized two waves of 2021 and 2018 datasets derived from the Japanese population-based survey of the Preference Parameters Study of Osaka University (N = 725). The probit regression results provide partial support for deviation from hand sanitization as an impulsive decision because the phenomenon is evident only in females. There were no notable impacts of the impatience variable in any of the models or specifications. Our study provides important policy implications. We argue that one-size-fits-all policies may not solve the impulsivity associated with hand-sanitization behavior in Japan because the impulsivity problem is not commonly found among all respondents. Policymakers should consider underlying gender differences when designing future health-promoting measures.

Interactive Structural Topology Optimization with Subjective Scoring and Drawing Systems

Topology optimization techniques can create efficient and innovative structural designs by redistributing underutilized materials to the most-needed locations. These techniques are typically performed based purely on structural performance without considering factors like aesthetics and other design requirements. Hence, the obtained structural designs may not be suitable for specific practical applications. This study presents a new topology optimization method, SP-BESO, by considering the subjective preferences (SP) of the designer. Here, subjective scoring and drawing systems are introduced into the popular bi-directional evolutionary structural optimization (BESO) technique. The proposed SP-BESO method allows users to iteratively and interactively create topologically different and structurally efficient solutions by explicitly scoring and drawing their subjective preferences. Hence, users do not need to passively accept the optimization results. A user-friendly digital design tool, iBESO, is developed, which contains four optimizers to simultaneously perform the proposed SP-BESO method to assist in the design exploration task. A variety of 2D examples are tested using the iBESO software to demonstrate the effectiveness of the proposed SP-BESO method. It is found that the combination of parameters used in the scoring and drawing systems controls the formation of final structural topologies toward performance-driven or preference-driven designs. The utilization of the proposed SP-BESO method in potential practical applications is also demonstrated.

Nursing Students’ Preferences for Learning Medical and Bioscience Subjects: A Qualitative Study

(1) Background: There are considerable challenges and concerns related to learning medical and bioscience subjects (MBS) in nursing education and integrating this knowledge into nursing. The aim of this study was to explore what learning methods nursing students prefer when studying MBS, and how this learning may be enhanced to facilitate the integration of these subjects into nursing. (2) Methods: Individual interviews with 10 nursing students. Transcripts from the interviews were analysed by systematic text condensation and the COREQ checklist for qualitative studies was completed. (3) Results: Students prefer varied and active learning methods in MBS. The participants in the study highlighted both organised tutorials in groups and working with fellow students outside of organised teaching. All participants used educational videos. Learning MBS by drawing was appreciated both during lectures and in student-initiated colloquia. Strategies that favour in-depth learning were appreciated, and it was found that lectures did not have to cover the entire curriculum. Teachers' attitudes toward students also were seen to have a considerable impact on students' motivation for learning. (4) Conclusion: Applying active learning methods and focusing on the most relevant topics in MBS appears to improve students' ability to integrate this knowledge into nursing; teachers should also be aware of their role as a motivator.

Listening to Music Pretask on Neuromuscular Fatigue During Exercise: Preferred vs. Nonpreferred Music.

Diehl, TL, Yu, JN, Storer, FM, and Malek, MH. Listening to music pretask on neuromuscular fatigue during exercise: preferred vs. nonpreferred music. J Strength Cond Res 37(7): 1537-1542, 2023-Studies indicate that listening to music can elicit various physiological responses ranging from distracting the subject from the sensation of fatigue to changes in specific regions of the brain. Indeed, the use of music, as an ergogenic aid, to improve human performance has been shown to be a powerful tool. Many studies on the effect of music on human performance have had subjects listen to music in-task (i.e., during the activity). There is, however, a growing interest to determine the role of listening to music pretask (i.e., before the activity) on exercise outcomes. In addition, it is important to consider the subject's music preference as that may influence the target outcome variable(s). Therefore, the purpose of this study was to determine whether listening to preferred music pretask influences the physical working capacity at the fatigue threshold (PWC FT ). We hypothesized that listening to preferred music pretask will increase the estimated PWC FT compared with the control condition, which is listening to nonpreferred music. Nine healthy college-aged men (mean ± SEM : age, 23.4 ± 0.4 years; body mass, 71.6 ± 2.5 kg; and height, 1.81 ± 0.02 m) volunteered for this study. Each subject visited the laboratory on 2 occasions separated by 7 days. In a randomized manner, subjects listened to their preferred music for 30 minutes before the exercise test for 1 visit, whereas for the other visit, subjects listened to their nonpreferred music 30 minutes before the exercise test. Exercise outcomes were recorded for both visits and analyzed using a paired-samples t test. The results indicated no significant ( p > 0.05) mean differences for maximal power output (mean ± SEM : 60 ± 4 W vs. 60 ± 4 W), PWC FT (25 ± 3 W vs. 29 ± 2 W), or heart rate at end exercise (153 ± 8 b·min -1 vs. 155 ± 7 b·min -1 ) between listening to nonpreferred vs. preferred music 30 minutes before the exercise activity. These findings suggest that listening to music pretask does not influence neuromuscular fatigue during the exercise workbout.

DQ-MAN: A tool for multi-dimensional data quality analysis in IoT-based air quality monitoring systems

Air quality monitoring has traditionally been performed using robust specialized systems based on an air filter. These systems provide high quality data, but entail a high investment, thus limiting the scale of the deployment. An alternative way of measuring air pollution is the use of optical sensors, which are mounted on an embedded system, leading to a lower cost, as compared to the traditional solution. While these systems allow for a wider deployment at a lower cost, there is a concern on the quality of the data provided by them. In this context, the analysis of Data Quality (DQ) takes special relevance, in order to meet the requirements established by environmental agencies. In order to tackle this issue, this paper proposes a multi-dimensional model that estimates a unified DQ index, based on the integration of the relevant DQ dimensions and the subjective preferences of experts in the field. We present the development of DQ-MAN, a tool that allows the end-user to assess and visualize the DQ metrics over different time frames, and to compute the corresponding DQ index. Our tool allows the user to publish the summarized results in a web report. We validate DQ-MAN using a synthetic dataset to assess the correctness of our tool, as well as a real dataset of a low-cost monitoring system deployed in Medellín, Colombia. Based on the evaluation, we conclude that DQ-MAN is aware of changes in DQ, and how each dimension affects the overall DQ assessment.

Finding the Seat With the Best View: Stage-View Preference for Orchestra

In a concert auditorium, conditions at different seats vary greatly, and are mostly affected by the view of the stage and the received sound of the performance, the former of which has been much less studied. With a focus on visual seat location, this study systematically investigates the effects of three visual factors: distance, lateral angle, and vertical angle, on the subjective seat preference of a symphony music performance, with one additional reference auditory factor: loudness (audio gain). Experimental investigation used virtual reality presentations of a 3D static orchestra on a stage with simplified orchestral audio, so that each factor could be changed independently. Results show that all factors significantly affect preference: smaller distances, smaller lateral angles, and vertical angles around 18° are preferred. Experiment results agree with those of an online questionnaire using corresponding stage-view images. A prediction model based on the results is proposed.

Families of Value-Dependent Preference Aggregation Operators with Their Structures and Properties

In evaluation and decision making frequently we need to consider and then well model the subjective preferences and behaviors of decision makers. This study firstly defines literally three types of conformities, namely, the Bounded Conformity, Extreme Conformity and Bounded Extreme Conformity. Then, we define two types of value-dependent preference aggregation operators, s-t-A extreme operators and Level dependent Preferences Ordered Weighted Averaging operators, to specifically model Extreme Conformity and Bounded Extreme Conformity, respectively. Some related mathematical properties and simple numerical examples are also presented.

성장기 아동을 위한 러닝화 디자인 개발연구

As the increase of number of childrens under China’s three-child policy, the demand for children’s running shoes is also expected to rise. In consideration of the physiological function, developmental characteristics, and biomechanical characteristics during children’s development, the running shoes are designed to protect their feet and accelerate their development. Subject to the biomechanical characteristics and preference of design, children’s running shoes have to be designed systematically. Considering the features of children’s feet, all-around researches and analysises were conducted to develop shoes that protect children’s feet. To protect the feet and the long-term development of children from pes valgus and flatfoot, the development of running shoe with protection was proposed. As the development direction, the outsole design should be in form with anti-slippery and force dispersion features while the midsole was air cushion structure to relieve the possible pressure from body weight and generated during movements. Secondly, it was a shape that support the ankle joint of the shoe upper.&#x0D; As a method of the experiment, two types of running shoes of the related comparative experimental group were selected, performance analysis, and subjective preference analysis were conducted. In the preference analysis, prototype running shoes were more aesthetic than the other two types of running shoes, and in terms of stability, the range of joint activity was better than that of the comparative group, and in terms of force absorption, prototype running shoes were higher than that of the comparative control group. Combining the research and developing running shoes for the protection of growing children's feet through biomechanical experiments can help to protect their feet more effectively, convincing consumers through persuasive marketing approach, and establishing a helpful design process for developing running shoe.

Dynamic Visualization of VR Map Navigation Systems Supporting Gesture Interaction

With the rapid development of information technology, virtual reality and gesture interaction have been gradually applied in the research and development of map navigation systems. Traditional visualization methods are no longer suitable for this novel interactive map. This research offers a dynamic visualization plan for a virtual reality (VR) navigation map focusing on natural gesture interaction to give examples for creating similar systems. The principal work is composed of two experiments. The first experiment focuses on designing map navigation gestures (moving, rotating, and zooming). Heuristic experiments are used to collect users’ subjective preferences and design suggestions about gestures. The second experiment is designed as a behavioral study to investigate which types of gestures and visualizations, among those obtained from the heuristic experiment in the first part, yield higher performance in our specific scenario. This result offers a practical VR map dynamic display approach through experimental validation. It also provides the basis for a human factor and technology support for future investigations.

The implicit preference evaluation for the ceramic tiles with different visual features: Evidence from an event-related potential study.

Ceramic tiles are popular because of their various forms, and they are often used to decorate the environment. However, few studies have applied objective methods to explore the implicit preference and visual attention of people toward ceramic tile features. Using event-related potential technology can provide neurophysiological evidence for the study and applications of tiles. This study explored the influence of pattern, lightness, and color system factors of ceramic tiles on the preferences of people using a combination of subjective questionnaires and event-related potential (ERP) technology. Twelve different conditions of tiles (2 × 3 × 2) were used as stimuli. EEG data were collected from 20 participants while they watched the stimuli. Subjective preference scores and average ERPs were analyzed using analysis of variance and correlation analysis. (1) Pattern, lightness, and color system factors significantly affected the subjective preference scores for tiles; the unpatterned tiles, light-toned tiles, and warm-colored tiles received higher preference scores. (2) The preferences of people for different features of tiles moderated ERP amplitudes. (3) The light-toned tiles with a high preference score caused a greater N100 amplitude than the medium-toned and dark-toned tiles; and the patterned tiles and warm-colored tiles with low preference scores induced greater P200 and N200 amplitudes. In the early stage of visual processing, light-toned tiles attracted more attention, possibly because of the positive emotional effects related to the preference. The greater P200 and N200 elicited by the patterned and neutral-colored tiles in the middle stage of visual processing indicates that patterned and neutral-colored tiles attracted more attention. This may be due to negativity bias, where more attention is allocated to negative stimuli that people strongly dislike. From the perspective of cognitive processes, the results indicate that the lightness of ceramic tiles is the factor that people first detect, and the visual processing of pattern and color system factors of ceramic tiles belong to a higher level of visual processing. This study provides a new perspective and relevant information for assessing the visual characteristics of tiles for environmental designers and marketers involved in the ceramic tiles industry.

Insurance value of biodiversity in the Anthropocene is the full resilience value

Recently two distinctly different conceptualisations of insurance value of biodiversity/ ecosystems have been developed. The ecosystem framing addresses the full resilience value without singling out subjective risk preferences. Conversely, the economic framing focuses exactly on this subjective value of risk aversion, implying that the insurance value is zero for risk neutral persons. Here we analyse the differences conceptually and empirically, and relate this to the broader socio-cultural dimensions of social-ecological resilience. The uncertainty of the Anthropocene blurs the distinction between subjective/objective. We show that the economic framing has been operationalised only in specific cases while the broader literature on resilience, disaster risk reduction, and nature-based solutions tend to address the full value of resilience. Yet, the empirical literature that relates to insurance value of biodiversity is hardly consistent with resilience theory because the slow underlying variables defining resilience are rarely addressed. We suggest how the empirical literature on insurance value can be better aligned with resilience theory. Since the ecosystem framing of insurance value captures the essence of the resilience, we propose using the concept “resilience value” as it may reduce the present ambiguity in terminology and conceptualisation of insurance value of biodiversity.

Development and validation of mobile app and data management system for intelligent control of indoor thermal environment

In engineering practice, air conditioning systems are not regulated according to the accurate real-time thermal sensation of occupants, which not only hinders improving the thermal comfort of the indoor environment but also wastes the energy of air conditioning systems. To introduce human thermal comfort in real-time into the intelligent control of air conditioning systems, this paper develops a mobile app and data management system for the intelligent control of the indoor thermal environment with three key components: the phone app, server and database. Function tests of the six modules are carried out to verify the stability and usability of system. A comparative experiment between wearable sensing of thermal sensation control based on this system and traditional temperature set value control under summer conditions is then conducted to verify the feasibility of the system. Under wearable sensing of thermal sensation control, the average indoor temperature setting value is 27.5 °C with an average satisfaction score of 5.50, which is higher than the average indoor temperature setting values of 26.3 °C and average satisfaction score of 4.65 under traditional temperature set point-based control. It means that the subject's thermal preference is met while achieving energy savings. The system proposed herein offers a new way to solve the problem of the disconnection between the intelligent control of air conditioning and the actual thermal sensation of occupants.

Quantitative evaluation of attraction intensity of highway landscape visual elements based on dynamic perception

In order to quantify the aesthetic attraction of visual elements of highway landscape space, the concept of visual attraction intensity of highway landscape space is proposed, and the factors and indicators of visual attraction elements are clarified. Based on the perspective of human factors, taking passengers as the main attraction, taking 30 landscape elements from three typical highway landscape scenes, namely mountain highway landscape, plain highway landscape and elevated highway landscape, as the research object. The real-time evaluation and data processing system of subjective landscape preference has been independently developed, and combined with the processing and analysis of human-machine-environment synchronous quantitative analysis technology and in-depth learning, a “subjective+objective” quantitative evaluation model of highway landscape visual element attraction intensity based on dynamic perception has been constructed, revealing the quantitative relationship between highway landscape visual attraction elements and attraction intensity, The quantitative method and action law of the attraction intensity of highway landscape and the dynamic aesthetic perception of the attraction subject is clarified. It is found that the change of highway planning alignment, high green view rate and low enclosure have positive effects on the subjective preference score of the landscape (0.690), and there is a significant positive correlation between green view rate and enclosure; the richer the landscape elements such as mountains, trees and water bodies, the stronger the visual attraction, but the complexity of the landscape elements increases the cognitive load of the area of interest. Among the physiological indicators, there are significant correlations between EEG and ECG (0.790), EDA and ECG (0.632), and subjective preference and passengers' eye-movement behavior and EDA; as well as the change pattern of attraction intensity based on the dynamic perception of tunnel area. The results show that the attraction intensity of visual elements of highway landscape space based on dynamic perception is consistent with human aesthetic preference, visual perception and physiological response, which verifies the scientificity, appropriateness and accuracy of eye-movement analysis method and physiological analysis method for quantitative evaluation of aesthetic preference of highway landscape.

Effects of depressive symptoms on regulating emotional goals: Preferences for distinct facial emotions

BackgroundAlthough many studies of emotion regulation in depression have focused on regulatory strategies, few have explored the goals of regulation. Regulatory strategies refer to methods of adjusting emotions, while regulatory goals refer to the desired states of emotion. According to situational selection strategy, individuals choose situations to regulate their emotions, and also selectively approach or avoid certain people. MethodsWe used the Beck Depression Inventory-II scale to classify healthy individuals into two groups: those with either high or low levels of depressive symptoms. We then explored the influence of these symptoms on individual goals for emotion regulation. Event-related potentials in the brain were recorded as participants viewed and selected images of happy, neutral, sad, and fearful faces. Participants also provided subjective emotional preferences. ResultsLate positive potential (LPP) amplitudes for all faces were smaller in the high depressive-symptom group than those in the low depressive-symptom group. Additionally, participants in the high depressive-symptom group chose to look at sad and fearful faces more often than they chose to view happy or neutral faces, and showed a stronger preference for sad and fearful emotions and a weaker preference for happy emotions. ConclusionThe results suggest that the more individuals exhibit depressive symptoms, the less likely that they will be motivated to approach happy faces and avoid sad and fearful faces. The result of this emotional regulation goal is an increase in the experience of negative emotions, which likely contributes to their depressive state.

Assessment of airline industry using a new double-frontier cross-efficiency method based on prospect theory.

Cross-efficiency method (CEM) is a well-known technique based on data envelopment analysis that provides policymakers with a powerful tool to measure the efficiency of decision-making units. However, there are two main gaps in the traditional CEM. First, it neglects the subjective preferences of decision-makers (DMs), and therefore, cannot reflect the importance of self-evaluation compared to peer-evaluations. Second, it ignores the importance of anti-efficient frontier in the overall evaluation. The present study aims to incorporate the prospect theory into the double-frontier CEM to deal with these drawbacks while considering the preferences of DMs towards gains and losses. To address these drawbacks, this paper utilizes an aggregation method based on the prospect theory and consensus degree (APC) to reflect the subjective preferences of DMs. The second issue is also addressed by incorporating APC into the optimistic and pessimistic CEMs. Finally, the double-frontier CEM aggregated using APC (DAPC) is obtained by aggregating two viewpoints. As a real case study, DAPC is applied to evaluate the performance of 17 Iranian airlines based on three inputs and four outputs. The findings demonstrate that both viewpoints are influenced by DMs' preferences. The ranking results achieved for more than half of the airlines based on the two viewpoints are significantly different. The findings confirm that DAPC deals with these differences and leads to more comprehensive ranking results by considering both subjective viewpoints simultaneously. The results also show that to what extent DAPC efficiency for each airline is influenced by each viewpoint. In this regard, the efficiency of is most influenced by the optimistic point of view (80.92%), and on the other hand, the efficiency of is most influenced by the pessimistic viewpoint (73.45%). KIS is the most efficient airline, followed by PYA. On the other hand, IRA is the least efficient airline, followed by IRC.