scholarly journals Explicit and Implicit Responses to Tasting Drinks Associated with Different Tasting Experiences

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4397 ◽  
Author(s):  
Daisuke Kaneko ◽  
Maarten Hogervorst ◽  
Alexander Toet ◽  
Jan B. F. van Erp ◽  
Victor Kallen ◽  
...  
Keyword(s):  
Heart Rate ◽  
Emotional Experience ◽  
Skin Conductance Level ◽  
Ground Truth ◽  
Response Patterns ◽  
Behavioral Measures ◽  
Alpha Asymmetry ◽  
Food Experience ◽  
Valence And Arousal ◽  
Sip Size

Probing food experience or liking through verbal ratings has its shortcomings. We compare explicit ratings to a range of (neuro)physiological and behavioral measures with respect to their performance in distinguishing drinks associated with different emotional experience. Seventy participants tasted and rated the valence and arousal of eight regular drinks and a “ground truth” high-arousal, low-valence vinegar solution. The discriminative power for distinguishing between the vinegar solution and the regular drinks was highest for sip size, followed by valence ratings, arousal ratings, heart rate, skin conductance level, facial expression of “disgust,” pupil diameter, and Electroencephalogram (EEG) frontal alpha asymmetry. Within the regular drinks, a positive correlation was found between rated arousal and heart rate, and a negative correlation between rated arousal and Heart Rate Variability (HRV). Most physiological measures showed consistent temporal patterns over time following the announcement of the drink and taking a sip. This was consistent over all nine drinks, but the peaks were substantially higher for the vinegar solution than for the regular drinks, likely caused by emotion. Our results indicate that implicit variables have the potential to differentiate between drinks associated with different emotional experiences. In addition, this study gives us insight into the physiological temporal response patterns associated with taking a sip.

scholarly journals Effect of Branding and Familiarity of Soy Sauces on Valence and Arousal as Determined by Facial Expressions, Physiological Measures, Emojis, and Ratings

2021 ◽  
Vol 2 ◽  
Author(s):  
Rene A. de Wijk ◽  
Shota Ushiama ◽  
Meeke J. Ummels ◽  
Patrick H. Zimmerman ◽  
Daisuke Kaneko ◽  
...  
Keyword(s):  
Heart Rate ◽  
Facial Expressions ◽  
Skin Conductance ◽  
Soy Sauce ◽  
Previous Experience ◽  
Brand Name ◽  
Behavioral Measures ◽  
Valence And Arousal ◽  
Brand Information ◽  
Extrinsic Properties

Food experiences can be summarized along two main dimensions: valence and arousal, which can be measured explicitly with subjective ratings or implicitly with physiological and behavioral measures. Food experiences are not only driven by the food's intrinsic properties, such as its taste, texture, and aroma, but also by extrinsic properties such as brand information and the consumers' previous experiences with the foods. In this study, valence and arousal to intrinsic and extrinsic properties of soy sauce were measured in consumers that varied in their previous experience with soy sauce, using a combination of explicit (scores and emojis), implicit (heart rate and skin conductance), and behavioral measures (facial expressions). Forty participants, high- and low-frequency users, were presented with samples of rice and three commercial soy sauces without and with brand information that either matched or non-matched the taste of the soy sauce. In general, skin conductance and facial expressions showed relatively low arousal during exposure to the brand name and again lowest arousal during tasting. Heart rate was lowest during exposure to the brand name and increased during tasting probably resulting from the motor activity during chewing. Furthermore, the results showed that explicit liking and arousal scores were primarily affected by the taste of the specific soy sauce and by the participants' previous experience with soy sauces. These scores were not affected by branding information. In contrast, facial expressions, skin conductance, and heart rate were primarily affected by (1) the participants' level of experience with soy sauce, (2) whether or not branding information was provided, and (3) whether or not the branding information matched with the taste. In conclusion, this study suggests that liking scores may be most sensitive to the food's intrinsic taste properties, whereas implicit measures and facial expressions may be most sensitive to extrinsic properties such as brand information. All measures were affected by the consumers' previous food experiences.

Affective Context of Sadness and Physiological Response Patterns

2011 ◽  
Vol 25 (2) ◽  
pp. 67-80 ◽  
Author(s):  
Dmitry M. Davydov ◽  
Emmanuelle Zech ◽  
Olivier Luminet
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Subjective Experience ◽  
Skin Conductance Level ◽  
Pulse Transit Time ◽  
Response Patterns ◽  
Skin Conductance Responses ◽  
Facial Behavior ◽  
Facial Activity ◽  
Negative Feelings

This study was conducted to test the hypothesis that two films that induce a sad feeling would elicit different physiological responses depending on an additional context of the film contents related to either avoidance (disgust) or attachment (tenderness). Reactivity was evaluated for facial behavior, heart rate, pulse transit time, skin conductance, and subjective experience. Participants reported feeling less happy and showed increased facial activity related to the sad content of both films. The sad film related to avoidance induced an increase in skin conductance level and response rate. In contrast, the sad film related to attachment induced a decrease in amplitude of skin conductance responses and heart rate. The study showed that while the common sad content of both films disturbed mood or provoked negative feelings, additional affective contexts induced either a decrease or an increase in physiological arousal.

The Effect of Searching Versus Surfing on Cognitive and Emotional Responses to Online News

2009 ◽  
Vol 21 (2) ◽  
pp. 49-59 ◽  
Author(s):  
Kevin Wise ◽  
Hyo Jung Kim ◽  
Jeesum Kim
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Skin Conductance Level ◽  
Emotional Responses ◽  
Online News ◽  
Self Report ◽  
Mixed Design ◽  
Information Need ◽  
News Stories ◽  
Rate Acceleration

A mixed-design experiment was conducted to explore differences between searching and surfing on cognitive and emotional responses to online news. Ninety-two participants read three unpleasant news stories from a website. Half of the participants acquired their stories by searching, meaning they had a previous information need in mind. The other half of the participants acquired their stories by surfing, with no previous information need in mind. Heart rate, skin conductance, and corrugator activation were collected as measures of resource allocation, motivational activation, and unpleasantness, respectively, while participants read each story. Self-report valence and recognition accuracy were also measured. Stories acquired by searching elicited greater heart rate acceleration, skin conductance level, and corrugator activation during reading. These stories were rated as more unpleasant, and their details were recognized more accurately than similar stories that were acquired by surfing. Implications of these results for understanding how people process online media are discussed.

scholarly journals Effect of congruence between sound and video on heart rate and self-reported measures of emotion

2018 ◽  
Vol 14 (3) ◽  
pp. 621-631
Author(s):  
Sebastián Calderón ◽  
Raúl Rincón ◽  
Andrés Araujo ◽  
Carlos Gantiva
Keyword(s):  
Heart Rate ◽  
Emotional Response ◽  
Emotional Responses ◽  
Subjective Perception ◽  
Video Clips ◽  
Bimodal Stimulus ◽  
Emotional Dimension ◽  
Valence And Arousal

Most studies of emotional responses have used unimodal stimuli (e.g., pictures or sounds) or congruent bimodal stimuli (e.g., video clips with sound), but little is known about the emotional response to incongruent bimodal stimuli. The aim of the present study was to evaluate the effect of congruence between auditory and visual bimodal stimuli on heart rate and self-reported measures of emotional dimension, valence and arousal. Subjects listened to pleasant, neutral, and unpleasant sounds, accompanied by videos with and without content congruence, and heart rate was recorded. Dimensions of valence and arousal of each bimodal stimulus were then self-reported. The results showed that heart rate depends of the valence of the sounds but not of the congruence of the bimodal stimuli. The valence and arousal scores changed depending on the congruence of the bimodal stimuli. These results suggest that the congruence of bimodal stimuli affects the subjective perception of emotion.

scholarly journals How does the robot feel? Perception of valence and arousal in emotional body language

2018 ◽  
Vol 9 (1) ◽  
pp. 168-182 ◽  
Author(s):  
Mina Marmpena ◽  
Angelica Lim ◽  
Torbjørn S. Dahl
Keyword(s):  
Human Perception ◽  
Ground Truth ◽  
Body Language ◽  
Human Robot Interaction ◽  
Behavioral Experiments ◽  
Robot Interaction ◽  
Expression Of Emotion ◽  
Exploratory Approach ◽  
Starting Point ◽  
Valence And Arousal

Abstract Human-robot interaction in social robotics applications could be greatly enhanced by robotic behaviors that incorporate emotional body language. Using as our starting point a set of pre-designed, emotion conveying animations that have been created by professional animators for the Pepper robot, we seek to explore how humans perceive their affect content, and to increase their usability by annotating them with reliable labels of valence and arousal, in a continuous interval space. We conducted an experiment with 20 participants who were presented with the animations and rated them in the two-dimensional affect space. An inter-rater reliability analysis was applied to support the aggregation of the ratings for deriving the final labels. The set of emotional body language animations with the labels of valence and arousal is available and can potentially be useful to other researchers as a ground truth for behavioral experiments on robotic expression of emotion, or for the automatic selection of robotic emotional behaviors with respect to valence and arousal. To further utilize the data we collected, we analyzed it with an exploratory approach and we present some interesting trends with regard to the human perception of Pepper’s emotional body language, that might be worth further investigation.

scholarly journals Physiological synchrony promotes cooperative success in real-life interactions

2019 ◽  
Author(s):  
F. Behrens ◽  
J. A. Snijdewint ◽  
R. G. Moulder ◽  
E. Prochazkova ◽  
E. E. Sjak-Shie ◽  
...  
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Cooperative Behavior ◽  
Skin Conductance Level ◽  
Real Life ◽  
Dyadic Interaction ◽  
Gut Feelings ◽  
The Face ◽  
Social Decision Making ◽  
Conductance Level

AbstractCooperation is pivotal for society to flourish and prosper. To ease cooperation, humans express and read emotions and intentions via explicit signals or subtle reflections of arousal visible in the face. Evidence is accumulating that humans synchronize these nonverbal expressions, as well as the physiological mechanisms underlying them, potentially promoting cooperative behavior. The current study is designed to verify the existence of this putative linkage between synchrony and cooperation. To that extent, 152 participants played multiple rounds of the Prisoner’s Dilemma game in a naturalistic dyadic interaction setting. During one round of games they could see each other, and during a second round they could not. The results showed that when people’s heart rate and skin conductance level aligned, they cooperated more successfully. Interestingly, for skin conductance level synchrony to boost cooperation, face to face contact was essential. The effect of heart rate synchrony on cooperation was context independent. Skin conductance level, but not heart rate, tended to closely correlate with changes in pupil size and we discuss how the pupil might provide a window to partners’ sympathetic arousal. These findings show how unconscious mechanisms guide social behavior and emphasize the importance of studying social processes between rather than within individuals in real-life interactions.Significance StatementHuman cooperation is remarkable in its scale, complexity, and efficiency. However, whereas people think of themselves as rational agents, they actually partly base their decision to cooperate with someone on gut feelings. These feelings are informed by non-verbal expressions that are picked up implicitly and that synchronize across interaction partners. For the first time, we show that the alignment of people’s arousal over multiple rounds of the Prisoners’ dilemma game predicts cooperative success. Through synchrony, partners converge emotionally, fostering understanding and bonding, which are key ingredients when it comes to successful cooperation. This suggests that successfully cooperating does not depend on individuals, but on the connection between individuals, emphasizing the importance of studying social decision-making processes in real-life settings.

scholarly journals Automated video-based heart rate tracking for the anesthetized and behaving monkey

2020 ◽  
Author(s):  
Mathilda Froesel ◽  
Quentin Goudard ◽  
Marc Hauser ◽  
Maëva Gacoin ◽  
Suliann Ben Hamed
Keyword(s):  
Heart Rate ◽  
Wavelet Transform ◽  
Ground Truth ◽  
Macaque Monkey ◽  
Head Motion ◽  
List Type ◽  
Tracking Method ◽  
Skin Reflectance ◽  
Behaving Monkeys ◽  
Human Primate

AbstractBackgroundHeart rate is extremely valuable in the study of complex behaviours and their physiological correlates in non-human primates. However, collecting this information is often challenging, involving either invasive implants or tedious behavioural training.New MethodIn the present study, we implement a Eulerian Video Magnification (EVM) heart tracking method in the macaque monkey combined with wavelet transform. This is based on a measure of image to image fluctuations in skin reflectance due to changes in blood influx.ResultsWe show a strong temporal coherence and amplitude match between EVM-based heart tracking and ground truth ECG, from both color (RGB) and infrared (IR) videos, in anesthetized macaques, to a level comparable to what can be achieved in humans. We further show that this method allows to identify consistent heart rate changes following the presentation of conspecific emotional voices or faces.Comparison with Existing Method(s)Eulerian Video Magnification (EVM) is used to extract heart rate in humans but has never been applied to non-human primates. Video photoplethysmography allows to extract awake macaques heart rate from RGB videos. In contrast, our method allows to extract awake macaques heart rate from both RGB and IR videos and is particularly resilient to the head motion that can be observed in awake behaving monkeys.ConclusionsOverall, we believe that this method can be generalized as a tool to track heart rate of the awake behaving monkey, for ethological, behavioural, neuroscience or welfare purposes.HighlightsHeart rate varies during complex non-human primate (NHP) behaviour and cognition.We apply Eulerian Video Magnification to track NHP heart rate (EVM-HR).EVM-HR can be used with RGB & IR videos, and anesthetized or awake NHPs.NHP EVM-HR vary with emotional content of presented stimuli.EVM-HR is of interest to ethology, behavioural, neuroscience & welfare purposes.

Telemetered Heart Rate as a Psychophysiological Correlate of Mother-Child Interaction, by K. Michael Hong, M.D., Douglas M. Bowden, M.D., and Kate L. Kogan, Ph.D

PEDIATRICS ◽  
1979 ◽  
Vol 63 (4) ◽  
pp. 601-601
Keyword(s):  
Heart Rate ◽  
Three Dimensions ◽  
Behavioral Measures ◽  
Transition Analysis ◽  
Physiological Variables ◽  
Cardiac Deceleration ◽  
Behavioral Interaction ◽  
New Findings ◽  
Naturalistic Setting ◽  
The Relationship

Heart rate was telemetered from 6 preschool children during play sessions with their mothers. Their behavioral interaction was simultaneously recorded on videotape and rated on three dimensions of interaction: status (submission- dominance), affect (hostility-warmth), and degree of involvement; 100 specific behaviors were coded in consecutive 4-second epochs. In exploring the relationship between heart rate and the behavioral measures, we applied two kinds of analysis—state analysis and transition analysis. The usefulness of recording heart rate in a naturalistic setting was demonstrated by replicating the finding from more rigidly defined experiments that intense looking at an object is associated with cardiac deceleration. New findings were that submissive status and warm affect of the child and dominant status and warm affect of the mother were associated with low heart rate in the child and that the onset of smiling was associated with cardiac deceleration in most situations. The study demonstrates the feasibility and some of the potential uses of continuously telemetered heart rate for analyzing interactional and physiological variables in a naturalistic setting.

scholarly journals Topography of emotional valence and arousal within the motor part of the subthalamic nucleus in Parkinson’s disease

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tereza Serranová ◽  
Tomáš Sieger ◽  
Filip Růžička ◽  
Eduard Bakštein ◽  
Petr Dušek ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Subthalamic Nucleus ◽  
Spatial Organization ◽  
Emotional Experience ◽  
Emotional Valence ◽  
Electrode Placement ◽  
Erotic Stimuli ◽  
Valence And Arousal ◽  
Motor Effects

AbstractClinical motor and non-motor effects of deep brain stimulation (DBS) of the subthalamic nucleus (STN) in Parkinson's disease (PD) seem to depend on the stimulation site within the STN. We analysed the effects of the position of the stimulation electrode within the motor STN on subjective emotional experience, expressed as emotional valence and arousal ratings to pictures representing primary rewards and aversive fearful stimuli in 20 PD patients. Patients’ ratings from both aversive and erotic stimuli matched the mean ratings from a group of 20 control subjects at similar position within the STN. Patients with electrodes located more posteriorly reported both valence and arousal ratings from both the rewarding and aversive pictures as more extreme. Moreover, posterior electrode positions were associated with a higher occurrence of depression at a long-term follow-up. This brain–behavior relationship suggests a complex emotion topography in the motor part of the STN. Both valence and arousal representations overlapped and were uniformly arranged anterior-posteriorly in a gradient-like manner, suggesting a specific spatial organization needed for the coding of the motivational salience of the stimuli. This finding is relevant for our understanding of neuropsychiatric side effects in STN DBS and potentially for optimal electrode placement.

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