Arousal Level Research Articles

Mining Opinions on a Prominent Health Insurance Provider from Social Media Microblog: Affective Model and Contextual Analysis Approach

Social media plays a significant role in enhancing communication among organizations, communities, and individuals. Besides being a mode of communication, the data generated from these interactions can also be leveraged to assess the performance of an institution or organization. People may evaluate public companies based on the opinions of their users. However, user-supplied information is brief and written in natural language. In addition to being brief, the process of sending messages or engaging in other social media interactions contains a great deal of context information. This multiplicity of context can be utilized to conduct a more in-depth analysis of user opinion. This study presents a new approach to opinion mining for social media microblogging data by applying an affective model and contextual analyses. The affective model is applied for sentiment analysis to measure the degree of each adjective from user opinion by evaluating adjectives according to their varying levels of pleasure and arousal. The contextual analysis in this paper is modeled based on topic, user, adjective, and personal characteristics. The contextual analysis has four main features: (1) Temporal keyword sentiment context, (2) Temporal user sentiment context, (3) User impression context, and (4) Temporal user character context. Our affective model outperformed 75.6% the accuracy and 74.98% of F1-score, rather than SVM. In the experiment, the contextual analysis performed graph visualization of output results for each query feature for future development. Feature one to four successfully processes the query to produce a visualization graph.

Social and Emotional Touch Between Romantic Partners is Affectively More Pleasant Due to Finely Tuned Contact Interactions.

Our daily observations tell us that the delivery of social sentiments and emotions differs between strangers and romantic partners. This work explores how relationship status influences our delivery and perception of social touches and emotions, by evaluating the physics of contact interactions. In a study with human participants, strangers and romantically involved touchers delivered emotional messages to receivers' forearms. Physical contact interactions were measured using a customized 3D tracking system. The results indicate that strangers and romantic receivers recognize emotional messages with similar accuracy, but with higher levels of valence and arousal between romantic partners. Further investigation into the contact interactions which underlie the higher levels of valence and arousal reveals that a toucher tunes their strategy with their romantic partner. For example, when stroking, romantic touchers use velocities preferential to C-tactile afferents, and maintain contact for longer durations with larger contact areas. Notwithstanding, while we show that relationship intimacy influences the deployment of touch strategies, such impact is relatively subtle compared to distinctions between gestures, emotional messages, and individual preferences.

US and Japanese adolescents’ emotions across time: variation by valence and arousal

Experiencing emotions is a complex process that varies across social contexts (e.g., culture) and over time. The current research examined the levels and trajectories of self-reported emotions among US (n = 321) and Japanese (n = 388) adolescents (age range: 11–14 at Time 1). Emotions were conceptualized as high arousal positive (HAP), low arousal positive (LAP), high arousal negative (HAN), and low arousal negative (LAN). At each time point, US adolescents (vs. Japanese) showed greater positive and lower negative emotions (both arousal levels). Positive and negative emotions were negatively associated in the US, but the associations were not present or were positive in Japan. While US adolescents’ HAP and LAN emotions remained stable, Japanese adolescents showed increases in HAP and LAN emotions over time. However, both groups showed increases at similar rates for HAN and no change in LAP emotions. Collectively, findings suggest that emotions are both pancultural and culture-specific and highlight the value of considering valence and arousal in cross-cultural examinations of emotions.

Facial attractiveness in the eyes of men with high arousal.

Individuals differ in how they judge facial attractiveness. However, little is known about the role of arousal level and gender differences in individuals' facial attractiveness judgments. We used resting-state electroencephalogram (EEG) to investigate this issue. A total of 48 men (aged 22.5±3.03years [mean±SD], range: 18-30years) and 27 women (aged 20.3±2.03years [mean±SD], range: 18-25years) participated in the experiment. After the EEG was collected, participants were instructed to complete a facial attractiveness judgment task. Connectome-based predictive modeling was used to predict individual judgment of facial attractiveness. Men with high arousal judged female faces as more attractive (M=3.85, SE=0.81) than did men with low arousal (M=3.33, SE=0.81) and women (M=3.24, SE=1.02). Functional connectivity of the alpha band predicted judgment of female facial attractiveness in men but not in women. After controlling for the age and variability, the prediction effect was still significant. Our results provide neural evidence for the enhancement of the judgment of facial attractiveness in men with high arousal levels, which supports the hypothesis that individuals' spontaneous arousal contributes to variations in facial attractiveness preferences.

The Role of the Autonomic Nervous System in the Mediation of the Resolution of Suicidal Ideation With Electroconvulsive Therapy: A Hypothesis and Review of Heart Rate Variability Over a Course of Electroconvulsive Therapy.

Longitudinal observational studies have shown a meaningful decrease in suicidal thinking and suicidal behavior after receipt of electroconvulsive therapy (ECT). The antisuicide effect of ECT may be related to success in the global relief of the presenting syndrome such as depressive or psychotic illness. However, it is possible that the antisuicide effect is specific to ECT per se, over and above the relief of the clinical syndrome. Electroconvulsive therapy is associated with many observable neurochemical and physiologic effects, and some of these may plausibly be specifically linked to an antisuicide effect. The phenomenon of physiologic hyperarousal has been named as a candidate mechanism driving the risk for suicide. Hyperarousal is associated with decreased neuropsychological executive function responsible for response inhibition and can lead to impulsive action. The level of arousal within the autonomic nervous system (ANS) can be assayed with the pupillary light reflex, electrodermal activity, or with heart rate variability (HRV). This article summarizes the literature on the effects of ECT on HRV 24 to 72 hours after a course of ECT and finds evidence for increases in HRV, which indicates lower levels of arousal in the ANS. This finding suggests that ECT-related reductions in ANS arousal, presumably with corresponding improvements in response inhibition, may be one mechanism whereby ECT reduces risk for suicide.

Effects of Interactions with Cats in Domestic Environment on the Psychological and Physiological State of Their Owners: Associations among Cortisol, Oxytocin, Heart Rate Variability, and Emotions.

Interactions with animals, including cats, is believed to influence human health. However, studies that investigate the psychological and physiological effects of interacting with cats in their household environment are limited. In this remote study, 32 cat owners in Japan participated from June to October 2021. They completed two tasks, each on separate days in their homes: one simulating daily cat communication (Interaction condition) and another with no interactions (Rest condition). We quantified emotions (arousal level and pleasure level) before and after each condition using the Two-Dimensional Mood Scale Short-term as well as salivary cortisol and oxytocin levels of owners using enzyme-linked immune-sorbent assay. Autonomic nervous activity (sympathetic and parasympathetic) was also quantified by heart rate variability analysis. The free interaction with cats decreased emotional arousal and parasympathetic activity, and lead to increased heart rates in owners. There was a positive correlation between heart rate and cortisol concentration, and between cortisol and oxytocin concentration. Furthermore, the frequency of petting the cats was negatively correlated with the rate of change in the parasympathetic activity. In contrast, the parasympathetic nerves in the owners were activated under the Rest condition. Hence, the mechanism of health-enhancing effects of cat ownership includes an arousing effect, in contrast to the previously proposed stress-reduction effect. This result can aid in future developments in cat-human relationship studies. However, a detailed study with a larger sample size is needed to draw definite conclusions.

Facial Emotion Recognition in Insomnia: Mechanisms and Consequences

Insomnia is a sleep disorder that is closely related with various physiological and psychological problems. Facial emotion recognition (FER) is an important part of social function, and has been found impaired in individuals with insomnia. This paper aims to explore the mechanisms of the correlation between insomnia and FER impairment, and the possible consequences of impaired FER for people with insomnia. Impaired expression expressivity and amygdala dysfunction are proposed as potential mechanisms underlying the link between insomnia and impaired FER. FER impairment in insomnia patients might lead to overlooking danger and lower levels of vigilance and arousal, which could result in disastrous outcomes. Moreover, impaired FER could lead to social function disturbance, making insomnia patients vulnerable to bullying.

Racial identity and sense of belonging: Moderators of Black college students' institutional race-related stress and anxious arousal.

Race-related stress due to institutional racism is a pervasive reality for Black college students and contributes to poor mental health outcomes such as anxious arousal symptoms. One framework which may account for this association between chronic stress and anxious arousal symptoms is the reserve capacity model. This study investigated whether racial identity dimensions (racial centrality, public regard, private regard) and sense of belonging to the racial group contribute to this population's reserve capacity and buffer the association between institutional race-related stress and anxious arousal symptoms. A sample of 134 Black college students completed racial identity, sense of belonging, and mental health questionnaires. These data were subjected to multiple regression analysis to assess the main and interactive effects of institutional race-related stress and dimensions of interest as predictors of anxious arousal symptoms. The analysis indicated that higher levels of institutional race-related stress, racial centrality, and public regard were each associated with higher levels of anxious arousal while higher levels of private regard and sense of belonging were associated with lower levels of anxious arousal. Further investigation of interaction effects revealed that high levels of sense of belonging and low levels of public regard, respectively, buffered the association between institutional race-related stress and anxious arousal symptoms. These findings illustrate how certain racial identity dimensions and sense of belonging contribute to the reserve capacity of Black students experiencing institutional race-related stress. Results are further discussed in the context of extant literature on Black racial identity and the university context. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Preliminary evaluation of a smartphone application (DelApp) for identification of delirium in sub-Saharan Africa.

In sub-Saharan Africa, there are no validated screening tools for delirium in older adults, despite the known vulnerability of older people to delirium and the associated adverse outcomes. This study aimed to assess the effectiveness of a brief smartphone-based assessment of arousal and attention (DelApp) in the identification of delirium amongst older adults admitted to the medical department of a tertiary referral hospital in Northern Tanzania. Consecutive admissions were screened using the DelApp during a larger study of delirium prevalence and risk factors. All participants subsequently underwent detailed clinical assessment for delirium by a research doctor. Delirium and dementia were identified against DSM-5 criteria by consensus. Complete data for 66 individuals were collected of whom 15 (22.7%) had delirium, 24.5% had dementia without delirium, and 10.6% had delirium superimposed on dementia. Sensitivity and specificity of the DelApp for delirium were 0.87 and 0.62, respectively (AUROC 0.77) and 0.88 and 0.73 (AUROC 0.85) for major cognitive impairment (dementia and delirium combined). Lower DelApp score was associated with age, significant visual impairment (<6/60 acuity), illness severity, reduced arousal and DSM-5 delirium on univariable analysis, but on multivariable logistic regression only arousal remained significant. In this setting, the DelApp performed well in identifying delirium and major cognitive impairment but did not differentiate delirium and dementia. Performance is likely to have been affected by confounders including uncorrected visual impairment and reduced level of arousal without delirium. Negative predictive value was nevertheless high, indicating excellent 'rule out' value in this setting.

The way you make me feel: an ecological momentary assessment study on couple similarity in sexual arousal and its sexual, relational, and affective correlates.

Although sexual arousal is commonly experienced in the daily context of relationships, most of what we know about sexual arousal comes from studies on individuals, often conducted in a laboratory context. To explore to what extent similarity in levels of sexual arousal during nongenital physical intimacy (ie, cuddling and kissing) was associated with each partner's affect as well as sexual and relationship satisfaction. Ninety-four cohabitating couples (mean ± SD age,26.30 ± 7.60; 88 mixed gender, 6 same gender) completed 6 ecological momentary assessments a day for 10 consecutive days. We used response surface analysis to examine the associations among the degree and direction of similarity in partners' sexual arousal and affective, sexual, and relational outcome variables. Sexual satisfaction, relationship satisfaction, and positive and negative affect. Sexual arousal levels covaried only when partners engaged in physically intimate behaviors, unlike affective responses, which covaried within couples more globally over time. Within-couple similarity at high levels of sexual arousal was positively associated with women's sexual satisfaction but unrelated to men and women's relationship satisfaction and affect. Individual- and couple-level sexual arousal was positively associated with men's sexual satisfaction and women's sexual and relationship satisfaction. Couple-level sexual arousal was relevant to men's affect such that positive affect was higher when sexual arousal levels within the couple were high. Our analyses also revealed a discrepancy effect in that women's positive affect was higher when their own sexual arousal levels were higher than those of their partners. These findings suggest that as long as sexual arousal levels within a couple are sufficiently high, sexual arousal similarity and discrepancy can be beneficial to one's well-being, supporting the relevance of therapeutical techniques aimed at increasing arousal levels to promote a better affective and relational climate for couples. This study is the first to test the daily associations among sexual arousal similarity and its correlates in a sample of cohabitating couples, providing a more comprehensive view of the interpersonal dynamics through which sexual arousal may influence individual, relational, and sexual well-being. Given our sample's relatively young age, as well as high sexual and relationship satisfaction, the results may not generalize to couples experiencing sexual or relational distress. Within the context of daily relationships, individual- and couple-level dynamics of sexual arousal were associated with sexual and relationship satisfaction, as well as with affective responses of relationship partners.

Loading and Transportation Issues in Horses

Abstract Refusal to load into a trailer or horsebox is a commonly seen behaviour in equines and one which is experienced by laypersons and professionals alike. Transportation of equines is highlighted as a prevalent welfare problem facing UK equines during a recent study. Problems with loading and travelling may occur in any equine at any life stage and may appear as significant issues from the first performance or develop gradually over time, increasing in frequency and intensity of their performance. These issues are likely to be maintained or worsened by repeated exposure to the travelling process and the use of inappropriate methods to attempt to resolve them. Behaviourally these problems present in a variety of ways including signs of stress, displacement and high levels of negative arousal. To fully understand the motivation for the behaviours identified, it is important that social, biological, psychological and functional analyses of the behavioural performance should be considered. Within this, there is also the element of learning, which is a constant aspect of the antecedent, behaviour and consequence continuum. Treatment protocols for travelling related issues should be holistic in nature to address the environmental, social, biological and psychological elements of the behavioural response. Information © The Author 2023

Physiological Arousal, Attentiveness, Emotion, and Word Retrieval in Aphasia: Effects and Relationships.

This study aimed to (a) compare physiological arousal and attentiveness during a confrontational naming task between participants with aphasia and a control group across four conditions that varied according to emotionality of presented stimuli and (b) explore relationships among physiological arousal, attentiveness, perceived arousal, and naming performance. We hypothesized that participants with aphasia would show lower levels of arousal and attentiveness than control participants and that emotional conditions would lead to increased physiological arousal and attentiveness. Eight participants with aphasia and 15 control participants completed a confrontational naming task under positive, negative, and neutral conditions and rated their perceived arousal after each. Electrophysiological recordings were taken during the entire experiment to obtain measures of heart rate (HR), HR variability, and skin conductance (SC). Videos of confrontational naming trials were rated based on visual signs of participant attentiveness during each trial. Statistically significant group differences were found for HR, SC, and attentiveness ratings, but no differences were found in these measures among conditions. Correlational analyses revealed statistically significant relationships between attentiveness and response time, HR, and naming accuracy. Significant correlations were also found for HR and naming accuracy as well as perceived arousal and naming accuracy. Findings suggest that decreased physiological arousal or attentiveness may contribute to naming deficits for people with aphasia (PWA). Assisting PWA to fully attend to and engage in therapy tasks may be important for accurate assessment of language functions and for achieving optimal benefit in treatment.

A behavioral perspective on workload control concepts: The influence of order release on operators’ reaction behavior

Most research on production planning and control (PPC) focuses on control structures, mathematical models, and algorithms, without explicitly considering human behavior. To consider a behavioral perspective of the PPC concept of workload control (WLC), we conduct a laboratory experiment. The study’s aim is to investigate the effects of changing workload norms, the influence of feedback information, and coworker queue length information on operators’ reaction behavior. To do so, we perform an assessment across two dimensions: operators’ (i) performance and (ii) arousal level. We contribute to the literature on endogenous processing times and highlight the importance of considering behavioral aspects when companies define an implementation strategy and when conducting WLC studies. Furthermore, given that production systems are operated by people, our results show that behavioral effects need to be considered in the specification of workload norms. Based on our results, we conclude that operators exhibit substantial heterogeneity in their reaction behavior, depending on their positioning in a flow shop (gateway station vs. downstream station).

Neuronal responses to omitted tones in the auditory brain: A neuronal correlate for predictive coding

Prediction provides key advantages for survival, and cognitive studies have demonstrated that the brain computes multilevel predictions. Evidence for predictions remains elusive at the neuronal level because of the complexity of separating neural activity into predictions and stimulus responses. We overcome this challenge by recording from single neurons from cortical and subcortical auditory regions in anesthetized and awake preparations, during unexpected stimulus omissions interspersed in a regular sequence of tones. We find a subset of neurons that responds reliably to omitted tones. In awake animals, omission responses are similar to anesthetized animals, but larger and more frequent, indicating that the arousal and attentional state levels affect the degree to which predictions are neuronally represented. Omission-sensitive neurons also responded to frequency deviants, with their omission responses getting emphasized in the awake state. Because omission responses occur in the absence of sensory input, they provide solid and empirical evidence for the implementation of a predictive process.

Validation of an online version of the Trier Social Stress Test in adult men and women

The Trier Social Stress Test (TSST) is a reliable laboratory protocol to induce acute psychosocial stress in the laboratory. If circumstances do not allow in-person assessments, an online version of the TSST could create more flexible research opportunities. To date, studies have confirmed subjective and autonomic stress responses to online TSST protocols. In this preregistered study, we focused on the effect of a TSST online for adults (TSST-OA) on cortisol and alpha amylase levels, and pleasure and arousal ratings. We hypothesized significant increases in cortisol, alpha amylase and arousal, and a decrease in pleasure in response to the TSST-OA. Also, we expected stronger cortisol responses in males as compared with females, as in the laboratory TSST. N=48 adults (56% female, meanage=23.02, SD=3.19) participated in the study. Saliva sampling devices were sent to participants’ home before testing sessions, during which the experimenter, a mixed-sex panel, and the participant joined a video call. Participants underwent the TSST-OA and overall provided five saliva samples for cortisol and alpha amylase detection. Pleasure and arousal ratings and psychometric questionnaires were also completed online. As hypothesized, the TSST-OA significantly increased cortisol, alpha amylase, and arousal levels, while it decreased pleasure. Moreover, cortisol responses were significantly stronger in males as compared to females. 64% of subjects were classified as responders (cortisol rise>1.5nmol/l). The TSST-OA successfully induced psychophysiological stress in adults. Our protocol offers new possibilities to study stress outside of the laboratory.

The influence of LED road stud color on driver behavior and perception along horizontal curves at nighttime

Scotopic lighting conditions (reduced level of natural light or presence of artificial lighting) may impair driving performance and, therefore, impact on road safety. Thanks to technological developments, low-cost light emitting diode (LED) studs are now being considered as an alternative and affordable pavement marking solution to assist drivers in these conditions. By helping them to maintain their vehicle within the marked lane, the studs should prevent any deterioration in driver performance when negotiating curves at nighttime. However, the few studies that investigated the impact of LED studs on driving performance produced inconsistent results, and the question of whether they actively improve driver performance remains open. Furthermore, while international road regulations allow the use of LED studs, they do not provide consistent prescriptions for their lighting color.Here, we assessed the influence of different LED lighting colors (red, white, and unlit) on longitudinal and transversal driver behavior when negotiating road curves with different radii and sense of direction. In the study, thirty-six drivers drove a dynamic virtual scenario featuring twenty-four curves. After the driving simulation, participants completed a static perception test in which they assessed each curve in terms of the perceived levels of risk, pleasantness, and arousal they experienced while driving on it.In comparison with the unlit and red lit curves, those marked with white lighting LED studs were perceived as less risky, less arousing, and more pleasant independently of the radii and curve direction. Furthermore, when entering these curves, participants tended to shift their driving trajectories towards the center of the road. This effect was most evident on the central part of the curve. Further studies are expected to corroborate these results by focusing on different road geometries and LED stud layouts, as well as testing driving behavior in controlled road field studies.

Risk factors for intimate partner violence victimization across 8 years: Contributions of the posttraumatic stress symptom domains.

Although much remains unknown about what creates risk for women's intimate partner violence (IPV) victimization across time, trauma exposure and mental health are likely contributors. Specifically, posttraumatic stress (PTS) is a risk factor for IPV victimization, yet we know less about the unique contributions of PTS symptom domains to IPV risk. Identification of PTS symptom domains that confer risk for IPV has the potential to inform novel targets of intervention. This study follows women with children (N = 118) across 8 years to identify the trauma exposure, mental health, and sociodemographic factors that contribute to IPV victimization risk using longitudinal multilevel modeling. Higher levels of PTS symptoms were associated with initially greater number of IPV victimization acts experienced (i.e., "IPV victimization"). However, across time, women with higher PTS symptoms decreased more quickly in IPV victimization than those with lower PTS symptoms. Higher levels of PTS arousal and reexperiencing were each associated with initially higher levels of IPV victimization. In addition, higher levels of PTS reexperiencing and arousal remained associated with higher levels of IPV victimization across time. Women's age was inversely related to IPV victimization over time only when accounting for the PTS symptom domains. Findings are that collapsing PTS symptoms into an overall construct may be too imprecise to identify key mechanisms for IPV victimization risk. IPV prevention should prioritize addressing reexperiencing and arousal symptoms to curb future IPV victimization. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The biophilic hotel lobby: Consumer emotions, peace of mind, willingness to pay, and health-consciousness

Drawing from the pleasure-arousal theory (PAT) and the effects of biophilic design, the purpose of this study was to understand how the emotional experience of hotel guests influenced their willingness to pay (WTP) and peace of mind (POM). In addition, this study examined the role of health consciousness in hotel guests’ emotional experience in the presence of biophilic design in hotel lobbies. Data from a sample of American consumers, was collected via Amazon Mechanical Turk’s Master List. An independent measure experimental design with online picture-based scenarios was operationalized with independent samples t-tests and linear regressions as data analysis methods. Results showed that the biophilic hotel lobby elicited a significantly higher level of pleasure and a significantly lower level of arousal than the non-biophilic hotel lobby. Furthermore, pleasure significantly and positively influenced arousal. Pleasure and arousal were found to partially mediate the relation between biophilic design and WTP and between biophilic design and POM. Furthermore, POM significantly and positively affected WTP. Lastly, health-consciousness significantly strengthened the relationship between biophilic design and POM, but not between biophilic design and WTP.

AffectMachine-Classical: a novel system for generating affective classical music.

This work introduces a new music generation system, called AffectMachine-Classical, that is capable of generating affective Classic music in real-time. AffectMachine was designed to be incorporated into biofeedback systems (such as brain-computer-interfaces) to help users become aware of, and ultimately mediate, their own dynamic affective states. That is, this system was developed for music-based MedTech to support real-time emotion self-regulation in users. We provide an overview of the rule-based, probabilistic system architecture, describing the main aspects of the system and how they are novel. We then present the results of a listener study that was conducted to validate the ability of the system to reliably convey target emotions to listeners. The findings indicate that AffectMachine-Classical is very effective in communicating various levels of Arousal (R2 = 0.96) to listeners, and is also quite convincing in terms of Valence (R2 = 0.90). Future work will embed AffectMachine-Classical into biofeedback systems, to leverage the efficacy of the affective music for emotional wellbeing in listeners.

Abnormal visual and olfactory sensations during radiation therapy: a prospective study

PurposePatients sometimes report phosphene and phantosmia during radiation therapy (RT). However, the detail features and related factors are not well understood. Our prospective study aimed to investigate the characteristics of phantosmias and phosphenes, to identify factors that influence the occurrence, intensity and hedonic (pleasantness/unpleasantness) ratings of such sensations during RT.MethodsWe included a total of 106 patients (37 women), who underwent RT in regions of the brain, ear, nose, throat (ENT), and other areas of the body for a duration of 43 ± 5 days. Medical history and treatment parameters were collected in a structured medical interview. Olfactory function was measured using the Sniffin’ Stick Odor Identification Test at baseline. Phantosmia and phosphene were recorded weekly based on a self-report questionnaire.ResultsThere were 37% of the patients experiencing phantosmias, 51% experiencing phosphenes, and 29% simultaneously experiencing both sensations. Phosphenes were typically perceived as a flashily blue, white and/or purple light, phantosmias were typically perceived as a chemical-like, metallic or burnt smell. Younger age (F = 7.81, p < 0.01), radiation in the brain region (χ2 = 14.05, p = 0.02), absence of taste problems (χ2 = 10.28, p = 0.01), and proton RT (χ2 = 10.57, p = 0.01) were related to these abnormal sensations. History of chemical/dust exposure predicted lower intensity (B = −1.52, p = 0.02) and lower unpleasantness (B = 0.49, p = 0.03) of phantosmia. In contrast, disease (tumor) duration (B = 0.11, p < 0.01), food allergy (B = 2.77, p < 0.01), and epilepsy (B = −1.50, p = 0.02) influence phosphenes intensity. Analgesics intake predicted a higher pleasantness of the phosphenes (B = 0.47, p < 0.01).ConclusionsPhantosmias and phosphenes are common during RT. The treatment settings and individual arousal level influence the occurrence, intensity and hedonic of such abnormal sensations. Phantosmias and phosphenes may involve more central neural than peripheral mechanism, and they could be elicited with activation of areas that are not regarded to be part of the olfactory or visual network.