Preference Ratings Research Articles

Application of Clove Leaf Oil (Syzygium aromaticum L.) on Preservation of Milkfish (Chanos chanos)

Clove leaf oil (Syzygium aromaticum L.) is obtained from distilling clove leaves. This study aimed to examine the effect of clove leaf oil on the preservation of milkfish meat. Clove leaf oil was obtained by steam distillation and purified by a simple distillation method. The number of microbes was determined using the total plate count (TPC) method, while the organoleptic test used a level of preference for color, smell, texture, and taste. The results showed that the pH and the number of fish meat bacteria at a concentration of 8%, when left for one day, were 6.61 and 2.46 × 10-7 CFU/mL, while the three days was 7.2 and 2.98 × 10-7 CFU/mL, a concentration of 10% in 1 day which was 6.64 and 2.03×10-7 CFU/mL while the three days was 7.25 and 2.54 × 10-7 CFU/mL and a concentration of 12 % in 1 day was 6.67 and 1.83 × 10-7 CFU/mL while three days was 7.57 and 2.07 × 10-7 CFU/mL, besides that from organoleptic test data the panelist preference rate was more significant in the concentration of 12 % then the concentration of 10 and 8 %, respectively. The results showed that at a concentration of 12%, it was a good concentration to be used as preservation compared to a concentration of 10 % and a concentration of 8%, both for a 1-day and a 3-days. This shows that the higher the concentration of clove leaf oil, the greater the ability to preserve fish meat.

Gaze correlates of view preference: Comparing natural and urban scenes

When looking out of a window, natural views are usually associated with restorative qualities and are given a higher preference than urban scenes. Previous research has shown that gaze behaviour might differ based on the natural or urban content of views. A lower number of fixations has been associated with the aesthetic evaluation of natural scenes while, when looking at an urban environment, a high preference has been correlated with more exploratory gaze behaviours. To characterise gaze correlates of view preference across natural and urban scenes, we collected and analysed experimental data featuring subjective preference ratings, eye-tracking measures, verbal reasoning associated with preference and nature relatedness scores. Consistent with the literature, our results confirm that natural scenes are more preferred than urban views and that gaze behaviours depend on view type and preference. Observing natural scenes was characterised by lower numbers of fixations and saccades, and longer fixation durations, compared to urban views. However, for both view types, most preferred scenes led to more fixations and saccades. Our findings also showed that nature relatedness may be correlated with visual exploration of scenes. Individual preferences and personality attributes, therefore, should be accounted for in studies on view preference and gaze behaviour.

Instability, political regimes and economic growth. A theoretical framework

AbstractThis paper models the influence of political instability on long‐term economic growth. We consider three political systems associated to real‐world political systems of increasing participation in policy‐making. For each system, society chooses an agent that remains in power unless instability, represented as a shortening of the period in office, sets in, which in turn leads to a shortening of the temporal horizon. The agent in charge reevaluates the optimal consumption program, by increasing the rate of time preference and the consumption. With a positively skewed income distribution, the relationship between participation and growth presents different shapes, depending on the probability of the agent in office being ousted. Our results lend theoretical support to the various findings in the empirical literature on the effects of political systems on economic growth.

The impact of landscape complexity on preference ratings and eye fixation of various urban green space settings

People’s perceptions on landscapes are important in the design process, and are closely associated with viewing behavior. However, little is known about the perceived landscape complexity of different urban green space settings in relation to people’s preference and eye movements. This study, therefore, investigated the influence of landscape complexity on preference ratings and eye fixation of lawn, path, plaza, and waterfront settings of urban green spaces. Six images for each type of setting were selected as stimuli and further classified into three categories based on the participants’ mean ratings of landscape complexity. Forty valid responses were obtained. The results indicated that participants’ ratings of landscape complexity and preference were positively correlated in all types of settings. There were significant differences in fixation count and average fixation duration between images with different levels of landscape complexity in lawn and waterscape settings. Fixation count was positively correlated with landscape complexity level in all lawn, plaza and waterscape setting images. Moreover, average fixation duration was negatively correlated with landscape complexity level in all lawn and waterscape setting images. Preference ratings had no definite relationships with fixation counts and average fixation duration. The findings of this study will help designers and urban park managers to effectively incorporate public perceptions in design and decision-making process. In addition, it provides new insights into the relationship between eye movements and landscape complexity and sheds some light on the application of eye tracking technology in landscape perception studies.

Çocuk Kitaplarındaki Matematiksel Kavramlar

The aim of this study is to determine the mathematical concepts in children's books. The examined books were selected by looking at the preference rates of the books in the library located in the city center according to their class levels. A set of ten books from the 2nd grade, 3rd grade and 4th grade levels were determined by the criterion sampling method. The book chosen for the 2nd grade is a series called Ünlülerle Bir Gün-1. The book chosen for the 4th grade is the series named Kurtuluşun Kahramanları. Because one series of the 3rd grade book set consists of five books, the second and fourth series were examined. The books chosen for the 3rd grade are Türkiye’yi Geziyorum 2 and Türkiye’yi Geziyorum 4 which are belong to Levent series. Since no data could be obtained about the most preferred books at the 1st grade level, 10 books with 5 or more editions were selected and a total of 40 books were examined. The books chosen for the first grade consist of the books in the sets named Çağlar'ın Maceraları, Elif’in Maceraları and İnci'nin Maceraları. Descriptive analysis was used to examine the collected data. Themes were first created within the framework of 3 basic learning areas in the Ministry of National Education's Mathematics Teaching Program. The 3 main learning areas consist of numbers and operations, geometry and measurement themes. Then sub-themes were created. The sub-themes consist of spatial relationships, comparison, sorting, matching, counting, addition, subtraction, multiplication, division, fraction, length measurement, liquid measurement, weight, area measurement, time and money. As a result of the research, it was determined that the concepts in the measurement category were included the most. It was determined that the measurement category was followed by the concepts of the numbers and operations category. Finally, it has been determined that the concepts in the geometry category are less frequently used among these concepts.

Electroacupuncture Reverses CUMS-Induced Depression-Like Behaviors and LTP Impairment in Hippocampus by Downregulating NR2B and CaMK II Expression.

Objective Depression is a global mental health problem with high disability rate, which brings a huge disease burden to the world. Electroacupuncture (EA) has been shown to be an effective method for the treatment of depression. However, the mechanism underling the antidepressant effect of EA has not been clearly clarified. The change of synaptic plasticity is the focus in the study of antidepressant mechanism. This study will observe the effect of EA on LTP of hippocampal synaptic plasticity and explore its possible mechanism. Methods The depression-like behavior rat model was established by chronic unpredictable mild stress (CUMS). EA stimulation (Hegu and Taichong) was used to treat the depressed rats. The depression-like behavior of rats was tested by weight measurement, open field test, depression preference test, and novelty suppressed feeding test. Long-term potentiation (LTP) was recorded at CA1 synapses in hippocampal slices by electrophysiological method. N-methyl-D-aspartate receptor subunit 2B (NR2B) and calmodulin-dependent protein kinase II (CaMK II) protein levels were examined by using western blot. Results After the establishment of CUMS-induced depression model, the weight gain rate, sucrose preference rate, line crossing number, and rearing times of rats decreased, and feeding time increased. At the same time, the LTP in hippocampus was impaired, and the expressions of NR2B and CaMK II were upregulated. After EA treatment, the depression-like behavior of rats was improved, the impairment of LTP was reversed, and the expression levels of NR2B and CaMK II protein were downregulated. Conclusion EA can ameliorate depression-like behaviors by restoring LTP induction, downregulating NR2B and CaMK II expression in CUMS model rats, which might be part of the mechanism of EA antidepressant.

Effects of coloured foliage on visual aesthetic quality

Though color is a major component that increases the aesthetic value of the environment, the studies on the effect of coloured foliage on aesthetic preference are rare. To increase the understanding on the effect of constant coloured foliage trees (CCFT) on aesthetic preference, 90 images were created by adding three types of CCFT across two grades of amount to 15 original photographs which were taken in summer and dominated by green vegetation. The aesthetic quality of these images was evaluated quantitatively through online surveys. Results showed that adding a high amount of red foliage trees and high or low yellow foliage trees decreased the aesthetic values of original photographs significantly, while adding a low amount of red foliage trees and the mixture of red and yellow trees (whether low or high amount) did not have an influence on aesthetic preference ratings. These results, generally, do not encourage the planting coloured foliage trees in urban green space. However, in order to enrich the colours of the landscape in summer, a low amount of red foliage trees or a mixture of red and yellow foliage trees can be introduced to urban green space.

Influence of a clinical trial in the decision-making processes of patients with amyotrophic lateral sclerosis.

Amyotrophic lateral sclerosis (ALS) is an incurable neurological disease, and patients diagnosed with ALS have a survival time of 2-5years without life-sustaining therapy. Decision-making processes for the acceptance or decline of percutaneous endoscopic gastrostomy (PEG) and tracheostomy with invasive ventilation (TIV) therapy are complex and multifaceted. In this study, we examined whether participation or no participation in clinical trials of ALS had an influence on the decision-making processes of ALS patients. Fifty-seven consecutive ALS participants were recruited. Two participants did not wish to participate in any clinical trials, and Twenty-two participants were enrolled in clinical trials. Twenty-three participants wished to participate but could not be enrolled in any of the clinical trials because they exceeded the number of participants in these trials or they met the exclusion criteria. At baseline, there was no significant difference in the preference rates for PEG and TIV between the participant and non-participant groups, but after the double-blind period/6months, both preference rates were significantly higher in the non-participant group than in the participant group. Notably, the rate of preferred TIV in the participant group drastically decreased after the double-blind period. A single regression analysis revealed that participation in clinical trials had a strong influence on the change of TIV preference for 6months. Participation in a clinical trial decreases the willingness to prolong life after the clinical trial. The present results are meaningful when designing clinical trials and discussing life-sustaining treatments with ALS patients.

Linking salt preference to enjoyment of low sodium diet in patients with heart failure

Abstract Background Preference for salty foods is linked to dietary sodium intake. Increased salt preference is a barrier to low sodium diet (LSD) adherence due to perceived poor taste. Although patients with heart failure (HF) are advised to follow a LSD, the adherence remains poor. Understanding the relationship among attitudes, subjective norms (individuals' beliefs about how much they follow the advice of respected others), and perceived control for following a LSD, salt preference, and LSD enjoyment will help in designing interventions to increase adherence in patients with HF. Purpose The purpose of this study was to examine whether attitudes toward following a LSD, subjective norms about LSD, and perceived behavioral control for following a LSD mediated the association between salt preference and enjoyment of a LSD in patients with HF. Methods In this cross-sectional study, outpatients with HF completed the Dietary Sodium Restriction Questionnaire (DSRQ) based on the Theory of Planned Behavior, and rated salt preference and enjoyment of a LSD on a scale from 0 to 10 with 10 indicating the highest salt preference and enjoyment of LSD. Parallel mediation analyses were conducted using the PROCESS macro program in SPSS with 5,000 bootstrap samples controlling for age and gender. Three subscales of the DSRQ (i.e., attitude, subjective norms, and perceived behavioral control) were used as mediators. Results A sample of 117 patients with HF (65% male, mean age = 61.2±14.3, range 27 to 94, 82% white) completed the study. The mean salt preference rating was 5.26 (SD=2.7), and the LSD enjoyment rating was 4.56 (SD=2.5). Salt preference was not directly associated with LSD enjoyment (direct effect = −0.0506, 95% CI: [−0.2394, 0.1381]). There was a significant indirect effect of salt preference on the enjoyment of LSD through perceived behavioral control (indirect effect = −0.1178, 95% CI: [−0.0321, 0.0446]) (Figure 1). Patients with a high salt preference were more likely to have low levels of LSD enjoyment through the mediator of having low levels of perceived behavioral control over following a LSD. Subjective norms and attitudes toward LSD were not significant mediators of the association between salt preference and LSD enjoyment. Conclusion High preference for salty food decreased perceived behavioral control of LSD, which reduced enjoyment of LSD in patients with HF. Salt preference and perceived behavioral control in LSD are behavioral barriers in hedonic shift in LSD enjoyment. The findings suggest that intervention to promote LSD adherence should include strategies to increase perceived behavioral control in eating LSD and decreasing salt preference. Funding Acknowledgement Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Institutes of Health in the USA

News, noise, and Indian business cycle

AbstractNew Keynesian dynamic stochastic general equilibrium models with various specifications of technology, markup, and interest rate shocks are estimated with Indian data using Kalman filter based pure and Bayesian likelihood estimation. Preference and interest rate shocks are found to be important for output determination, whereas markup and interest rate shocks are important for inflation. News, as contained in stock market variables and arising from anticipated interest rates, affects growth of gross domestic product. Interest rate shock is anticipated at horizon of one quarter and out of total variance explained by interest rate shock, one third is due to the anticipated shock. Anticipated interest rate shock diminishes the share of preference shock in output determination. Although markup shock has a large share, its persistence is low. There is evidence that permanent component of technology is not well anticipated. Once we incorporate this, technology shocks affect output more, although they still remain much below US levels. Implications for policy include forward guidance on interest rates, less reaction to short‐term supply shocks, and allowing technology shocks to play out.

Clinical Comparison of a Silicone Hydrogel and a Conventional Hydrogel Daily Disposable Contact Lens.

PurposeTo compare the subjective performances of verofilcon A daily disposable silicone hydrogel contact lenses (CLs) and etafilcon A hydrogel CLs.MethodsSuccessful wearers of spherical soft CLs for distance correction were prospectively randomized to wear verofilcon A or etafilcon A lenses for 1 week and crossed over to the alternative lenses. The primary study objective was a comparison of distance visual acuity (VA). Exploratory endpoints included subjective overall lens preference (5-point scale) and subjective ratings (10-point scales) of end-of-day (EOD) vision, overall handling, insertion comfort, EOD comfort, overall quality of vision, overall comfort, vision throughout the day, lens handling at insertion, and lens handling at removal.ResultsOf 92 subjects (184 eyes), 46 each were randomized to verofilcon A or etafilcon A lenses and subsequently crossed over to the other lenses. Evaluation of distance VA showed that verofilcon A lenses were noninferior to etafilcon A lenses. Comparison of lens preference showed that 68 (73.9%) subjects somewhat or strongly preferred verofilcon A lenses, whereas 21 (22.9%) somewhat or strongly preferred etafilcon A lenses (p<0.0001). Mean ± SD ratings of EOD vision (8.6±1.5 vs 7.7±1.9), overall handling (8.7±1.5 vs 6.9±2.3), insertion comfort (9.2±1.0 vs 7.7±1.9), and EOD comfort (8.0±1.9 vs 7.0±2.2) were all significantly (p≤0.0001 each) higher for verofilcon A than for etafilcon A lenses. Mean ± SD ratings of overall quality of vision (8.9±1.2 vs 8.2±1.8), overall comfort (8.6±1.5 vs 7.4±1.8), vision throughout the day (8.9±1.3 vs 8.1±1.8), lens handling at insertion (9.0±1.4 vs 6.9±2.5), and lens handling at removal (8.3±2.1 vs 7.7±2.2) were also significantly higher for verofilcon A lenses. No subject experienced any ocular adverse events.ConclusionAfter 1 week of wear, the study population reported that ratings for subjective endpoints were significantly higher for verofilcon A lenses than for etafilcon A lenses.

Playing dead pool against the contributions system

• Life expectancy negatively affects contribution evasion. • Number of children positively affects contribution evasion, while the number of family members has a negative effect. • Factors affecting the individual’s expected pension income influence contribution evasion today. • Long-term financial assets revenues and the intertemporal preference rate are positively related to contributions evasion. This paper examines the rationale behind social contribution evasion. The main idea is that evasion of social security contributions implies loss of future benefits, and in a system in which pensions are proportional to contributions, one would expect that, ceteris paribus , a decrease in the alternative measures of saving towards one’s pension or an increase in subjective life expectancy would lead workers to contribute more towards their own pensions. By using OLS and Tobit estimators, we test whether contribution evasion is part of an intertemporal portfolio allocation and competes with other forms of wealth-accumulating assets. Empirical results on repeated cross-sectional Italian microdata confirm that contribution evasion decreases as life expectancy increases, and increases when the return on other long-term wealth-accumulating assets increases.

Changing Behaviors of Adults for Ensuring the Food Hygiene During Covid-19 Outbreak: The Case of Turkey

The aim of this study is to determine the behavior of individuals for buying, preparing, and cooking processes of the foods during the Covid-19 epidemic. This study carried out with 999 adult individuals, 15.0% (n = 150) men and 85.0% (n = 849) women, aged 19-65. The questionnaire includes questions regarding the provision of food hygiene before and during the Covid-19 outbreak. According to the results, while the preference rate for markets' take-out services increased in the Covid-19 epidemic process (22.8% before Covid-19; 55.7% in the Covid-19 outbreak), there was a decrease in the proportion of those who preferred neighborhood farm markets (66.8% before Covid-19; 27.5% during Covid-19 outbreak) (p <0.01). The proportion of those who chose to buy packaged bread and fruit during the epidemic also increased (p = 0.001). No scientific data are available on the consumption of nutrients with a potentially contaminated risk and the transmission of the virus. However, it is believed that the concerns about carrying this virus with food can be prevented by the consumers more carefully applying the routine hygiene rules.

A Cross-Cultural Analysis of the Influence of Timbre on Affect Perception in Western Classical Music and Chinese Music Traditions.

Timbre is one of the psychophysical cues that has a great impact on affect perception, although, it has not been the subject of much cross-cultural research. Our aim is to investigate the influence of timbre on the perception of affect conveyed by Western and Chinese classical music using a cross-cultural approach. Four listener groups (Western musicians, Western nonmusicians, Chinese musicians, and Chinese nonmusicians; 40 per group) were presented with 48 musical excerpts, which included two musical excerpts (one piece of Chinese and one piece of Western classical music) per affect quadrant from the valence-arousal space, representing angry, happy, peaceful, and sad emotions and played with six different instruments (erhu, dizi, pipa, violin, flute, and guitar). Participants reported ratings of valence, tension arousal, energy arousal, preference, and familiarity on continuous scales ranging from 1 to 9. ANOVA reveals that participants’ cultural backgrounds have a greater impact on affect perception than their musical backgrounds, and musicians more clearly distinguish between a perceived measure (valence) and a felt measure (preference) than do nonmusicians. We applied linear partial least squares regression to explore the relation between affect perception and acoustic features. The results show that the important acoustic features for valence and energy arousal are similar, which are related mostly to spectral variation, the shape of the temporal envelope, and the dynamic range. The important acoustic features for tension arousal describe the shape of the spectral envelope, noisiness, and the shape of the temporal envelope. The explanation for the similarity of perceived affect ratings between instruments is the similar acoustic features that were caused by the physical characteristics of specific instruments and performing techniques.

Understanding tenants’ motivations for co-living arrangements: a case study of Klang Valley, Malaysia

PurposeThe purpose of this study is to fill a knowledge gap by analyzing the motivations of tenants to co-living spaces in Klang Valley, Malaysia as the motives of co-living spaces are related to how well that space supports their needs.Design/methodology/approachTenants’ behaviors were examined using a convergent parallel mixed-method approach, which included a survey and an in-depth interview. A total of 175 respondents were interviewed using purposive sampling.FindingsThe results show that the preference for co-living attributes has changed during the pandemic. User ratings of preference for physical and leasing attributes of co-living spaces are significant in terms of co-living motivations. The findings also revealed that tenants prefer twin-sharing and master bedrooms when choosing a co-living space to stay in.Research limitations/implicationsIdentifying the factors that influence such motivations is critical for housing developers and co-living service providers to pay close attention to improving tenants’ living experiences.Originality/valueThere is interest in the co-living spaces that are available for rent. However, very little research is based on an understanding of how the tenants in Klang Valley, Malaysia perceive this type of living arrangement. A better understanding and prediction of tenants’ needs and preferences may lead to a better understanding of the attributes that influence their motivations for using co-living spaces.

Preference, Expected Burden, and Willingness to Use Digital and Traditional Methods to Assess Food and Alcohol Intake.

We conducted an online survey to examine the preference, expected burden, and willingness of people to use four different methods of assessing food and alcohol intake such as food/drink record, 24-h recall, Remote Food Photography Method© (RFPM, via SmartIntake® app), and a novel app (PortionSize®) that allows the in-app portion size estimation of foods/drinks by the user. For food (N = 1959) and alcohol (N = 466) intake assessment, 67.3% and 63.3%, respectively, preferred the RFPM/SmartIntake®, 51.9% and 53.4% preferred PortionSize®, 48.0% and 49.3% the food records, and 32.9% and 33.9% the 24-h recalls (difference in preference across all methods was p < 0.001 for food and alcohol intake). Ratings of burden and preference of methods were virtually superimposable, and we found strong correlations between high preference and low expected burden for all methods (all ρ ≥ 0.82; all p < 0.001). Willingness (mean (SD)) to use the RFPM/SmartIntake® (food: 6.6 (2.0); alcohol: 6.4 (2.4)) was greater than PortionSize® (food: 6.0 (2.2); alcohol: 6.0 (2.4); all p < 0.001) and 24-h recalls (food: 6.1 (2.2); alcohol: 5.7 (2.7); p < 0.001), but not different from food records (food: 6.6 (2.0); alcohol: 6.5 (2.3); all p ≥ 0.33). Our results can be used in conjunction with existing data on the reliability and validity of these methods in order to inform the selection of methods for the assessment of food and alcohol intake.

SIGNATURE VERIFICATION USING SIAMESE NEURAL NETWORK ONE-SHOT LEARNING

With the acceleration of digitalization in all areas of our lives, the need for biometric verification methods is increasing. The fact that biometric data is unique and biometric verification is stronger against phishing attacks compared to password-based authentication methods, has increased its preference rate. Signature verification, which is one of the biometric verification types, plays an important role in many areas such as banking systems, administrative and judicial applications. There are 2 types of signature verification, online and offline, for identifying the identity of the person and detecting signature forgery. Online signature verification is carried out during signing and temporal dynamic data are available regarding the person's signature. Offline verification is applied by scanning the image after signing, and this verification is limited to spatial data. Therefore, the offline signature verification process is considered a more challenging task. In this study, offline signature verification, independent of the writer, based on One-Shot Learning, was performed using Siamese Neural Network. Due to the fact that the Deep Convolution Neural Network requires a large amount of labeled data for image classification, real and fake signature distinction has been achieved by using the One-Shot Learning method, which can perform a successful classification by using less numbers of signature images. As a result of the experiments conducted on signature datasets, using the Siamese architecture, the proposed approach achieved percentage accuracy of 93.23, 92.11, 89.78, 91.35 verification in 4NSigComp2012, SigComp2011, 4NSigComp2010 and BHsig260 respectively.

Perceptions of identity, language abilities and language preferences among Russian-Hebrew and English-Hebrew bilingual children and their parents

ABSTRACT Israel’s population includes over a million Russian-speaking immigrants and more than 300,000 native English speakers. These groups differ in social integration and in the status of their heritage languages in Israel. We compared children’s and parents’ perceptions of children’s identities, language abilities, and language preferences among Russian-Hebrew and English-Hebrew bilinguals via sociolinguistic questionnaires. Forty-six Russian-Hebrew (RH) and 15 English-Hebrew (EH) bilingual children and their parents participated. Analyses addressed inter-generational (children vs. parents) and inter-group (RH vs. EH) differences. Identity ratings revealed both child–parent and group differences. Identity. RH parents and children differed regarding perceived Home and Societal identities. EH children and parents agreed about Home identity but not about Israeli identity. RH parents gave higher ratings to their children’s HL/Russian abilities than their children did, while EH parents and children both rated HL abilities as higher than Societal language abilities. Both RH and EH parents expressed greater preferences for the SL/Hebrew than their children, but parents’ and children’s ratings of preferences for the Home language differed for the two groups. Examining relations among perceived identity, language abilities, and preferences in children and their parents, the study sheds light on the children’s patterns of socialisation, acculturation, and maintenance of home language identity.

Memory colors and the assessment of color quality in lighting applications

Due to their potential use as an internal reference, memory colors may provide an excellent approach for the color rendition evaluation of white light sources in terms of predicting visual appreciation. Because of certain limitations in the design of existing memory-related color quality measures, a new metric based on the outcome of a series of recently conducted memory color appearance rating experiments is proposed in this work. In order to validate its predictive performance, a meta-correlation analysis on a comprehensive set of preference rating data collected from literature is performed. Results indicate that the new metric proposal outperforms established color quality measures and is capable of correctly predicting the rank order of light sources in different lighting scenarios. The future inclusion of this new metric into a comprehensive lighting quality model may serve as a valuable tool for the lighting designer to create optimally lit environments for humans that do not only support the visual task fulfillment but also increase the users' well-being and emotional comfort by rendering the perceived space in such a way that it complies with the people's inherent memory references.

Reflectance spectra analysis for mucous assessment

This review report represents an overview of research and development on medical hyperspectral imaging technology and its applications. Spectral imaging technology is attracting attention as a new imaging modality for medical applications, especially in disease diagnosis and image-guided surgery. Considering the recent advances in imaging, this technology provides an opportunity for two-dimensional mapping of oxygen saturation (SatO2) of blood with high accuracy, spatial spectral imaging, and its analysis and provides detection and diagnostic information about the tissue physiology and morphology. Multispectral imaging also provides information about tissue oxygenation, perfusion, and potential function during surgery. Analytical algorithm has been examined, and indication of accurate map of relative hemoglobin concentration and SatO2 can be indicated with preferable resolution and frame rate. This technology is expected to provide promising biomedical information in practical use. Several studies suggested that blood flow and SatO2 are associated with gastrointestinal disorders, particularly malignant tumor conditions. The use and analysis of spectroscopic images are expected to potentially play a role in the detection and diagnosis of these diseases.