Article
Nutrition & Dietetics
Wataru Sato, Sakiko Yoshikawa, Tohru Fushiki
Summary: The study found that facial EMG signals in response to food images reflect subjective hedonic experiences, but not objective nutritional values associated with the food item.
Article
Nutrition & Dietetics
Wataru Sato, Akira Ikegami, Sayaka Ishihara, Makoto Nakauma, Takahiro Funami, Sakiko Yoshikawa, Tohru Fushiki
Summary: The study explores the correlation between subjective hedonic experiences during food consumption and muscle activity, indicating that liking, wanting, and valence are associated with activity in different facial and masticatory muscles, demonstrating the potential of using physiological signals to sense emotional experiences during eating.
Article
Food Science & Technology
Ayano Hiratsu, David Thivel, Kristine Beaulieu, Graham Finlayson, Chihiro Nagayama, Kayoko Kamemoto, Sirikul Siripiyavatana, Yusei Tataka, Yoshiki Yamada, Masashi Miyashita
Summary: The present study developed a Japanese version of the Leeds Food Preference Questionnaire (LFPQ-J) and demonstrated its sensitivity and reproducibility in evaluating liking and wanting for food varying in fat content and sweet taste in Japanese adults under fasted and fed states.
FOOD QUALITY AND PREFERENCE
(2022)
Article
Chemistry, Analytical
Wataru Sato, Takanori Kochiyama
Summary: Exploring the physiological signals associated with subjective emotional dynamics is of practical significance. Previous studies have shown that facial electromyography (EMG) and electrodermal activity (EDA) can assess the dynamics of subjective emotional valence and arousal. This study investigates the effectiveness of other methods and finds that fingertip temperature can be used to assess the dynamics of subjective emotional arousal.
Article
Nutrition & Dietetics
Akie Saito, Wataru Sato, Akira Ikegami, Sayaka Ishihara, Makoto Nakauma, Takahiro Funami, Tohru Fushiki, Sakiko Yoshikawa
Summary: The study found commonalities and differences in subjective-physiological emotional coherence during food intake between older and younger adults, with corrugator EMG activity negatively correlated with arousal ratings in the older group.
Article
Nutrition & Dietetics
Pauline Oustric, Kristine Beaulieu, Nuno Casanova, Dominic O'Connor, Catherine Gibbons, Mark Hopkins, John Blundell, Graham Finlayson
Summary: Food reward (liking and wanting) has been shown to decrease after weight management interventions, regardless of specific dietary modalities. Changes in liking and implicit wanting post weight loss are sustained after 1-year, but the high loss to follow-up rate limits generalization of the findings.
Article
Food Science & Technology
Linbo Qiu, Chujun Wang, Xiaoang Wan
Summary: Numerous studies have shown that repeatedly consuming a specific food within a short period of time can reduce individuals' liking and wanting for that food, known as sensory-specific satiety. Recent research suggests that this effect can also be elicited by repeated imagined consumption. The present study aimed to investigate whether repeated imagined consumption of one food could induce sensory-specific satiety for other foods. The results indicate that imagining consuming a high-caloric food repeatedly led to decreased liking and wanting for both the imagined food and other high-caloric foods, demonstrating the transfer of sensory-specific satiety based on repeated imagination without actual consumption. These findings have implications for nudging strategies aimed at promoting healthier eating behaviors.
FOOD QUALITY AND PREFERENCE
(2023)
Article
Behavioral Sciences
Richard J. Stevenson, Heather M. Francis, Alannah Hughes, Fiona Wylie, Martin R. Yeomans
Summary: People experience a discrepancy between their wanting for food and their liking of it, with the former declining to a greater extent after eating. This study investigates the predictors of these affective changes, including state, sensory, and memory-based factors. The results show that changes in flavor liking best predict state-based changes in food liking, while memory-based information about flavor liking and fillingness are significant predictors of state-based changes in wanting. Additionally, recollections of food fillingness significantly increase after lunch and are the best predictor of the affective discrepancy effect.
Article
Behavioral Sciences
Franziska K. Mueller, Vanessa Teckentrup, Anne Kuehnel, Magdalena Ferstl, Nils B. Kroemer
Summary: The vagus nerve plays a vital role in the regulation of food intake, but the effects of taVNS on food ratings are inconclusive in human studies. This study found that acute taVNS has a marginal effect on food ratings, calling for further research on the correspondence between acute and chronic effects of vagal afferent stimulation.
Article
Mathematical & Computational Biology
Carlos Magno Medeiros Queiroz, Gustavo Moreira da Silva, Steffen Walter, Luciano Brinck Peres, Luiza Maire David Luiz, Samila Carolina Costa, Kelly Christina de Faria, Adriano Alves Pereira, Marcus Fraga Vieira, Ariana Moura Cabral, Adriano de Oliveira Andrade
Summary: This study proposed a single-channel method for attenuating facial EMG noise from contaminated EEG, evaluated the performance of multiple decomposition and adaptive filtering techniques, and estimated a set of features from experimental signals to evaluate the method's performance. The results showed variations in contamination of EEG by different facial muscles.
FRONTIERS IN COMPUTATIONAL NEUROSCIENCE
(2022)
Article
Medicine, General & Internal
Feng-Yu Chiang, Chih-Chun Wang, Che-Wei Wu, I-Cheng Lu, Pi-Ying Chang, Yi-Chu Lin, Ching-Feng Lien, Chien-Chung Wang, Tzu-Yen Huang, Tzer-Zen Hwang
Summary: This observational study found that intraoperative facial nerve dissection during parotidectomy can lead to decreases in electromyography (EMG) signals in facial muscles, with most patients experiencing complete recovery of facial functions within 6 months. Signals with >50% amplitude decreases were associated with regional facial dysfunction.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Chemistry, Analytical
Wataru Sato, Takanori Kochiyama
Summary: There is evidence that EMG signals from the corrugator supercilii and zygomatic major muscles can provide valuable information for emotional assessments. The study aims to investigate if crosstalk occurs in facial EMG data and how to reduce it. Participants were instructed to perform various facial actions while measuring EMG signals from different facial muscles. Independent component analysis (ICA) was used to remove crosstalk components. The results suggest that mouth actions could induce crosstalk in zygomatic major EMG signals, and ICA can reduce this effect.
Review
Cell Biology
Cherkaouia Kibaly, Jacob A. L. Alderete, Steven H. Liu, Hazem S. Nasef, Ping-Yee Law, Christopher J. Evans, Catherine M. Cahill
Summary: The abuse of opioid medications, particularly oxycodone, has become a significant crisis, leading to overdose deaths and addiction. Misuse of oxycodone is driven by its pharmacological properties, market strategies, and false claims of non-addictiveness, contributing to its high likability and abuse susceptibility. Understanding the unique pharmacology and marketing tactics of oxycodone is crucial in addressing the opioid epidemic and preventing further harm.
CELLULAR AND MOLECULAR NEUROBIOLOGY
(2021)
Article
Multidisciplinary Sciences
Jingnan Huang, Zhaonan Zhang, Wangjiang Feng, Yuanhong Zhao, Anna Aldanondo, Maria Gabriela de Brito Sanchez, Marco Paoli, Angele Rolland, Zhiguo Li, Hongyi Nie, Yan Lin, Shaowu Zhang, Martin Giurfa, Songkun Su
Summary: This study focused on honey bees and investigated the presence of a wanting system in insects. Through monitoring foraging and dance behavior, as well as interfering with biogenic amine signaling in the bee brain, the researchers found that honey bees have a dopamine-dependent wanting system, which shares neural mechanisms with mammals for encoding the wanting of stimuli with positive hedonic value.
Article
Psychology, Experimental
Tanja S. H. Wingenbach, Beatriz Ribeiro, Caroline Nakao, Paulo S. Boggio
Summary: Stimulating CT-afferents through forearm caresses produces pleasant subjective experiences and modulates evaluations of affective images. Touch from another person enhances facial muscle responses to positive images, but providing touch dampens positive facial muscle responses. Touch generally increases negative facial muscle activity. Receiving touch does not modulate facial muscle responses during image viewing but may affect subsequent cognitive processes.
COGNITION & EMOTION
(2023)
Article
Neuroimaging
Shota Uono, Wataru Sato, Takanori Kochiyama, Sayaka Yoshimura, Reiko Sawada, Yasutaka Kubota, Morimitsu Sakihama, Motomi Toichi
Summary: The present study using voxel-based morphometry (VBM) investigated the differences in structural neural correlates of emotion recognition between individuals with and without ASD. The findings suggest that individuals with and without ASD use different processing mechanisms for recognizing others' facial expressions.
BRAIN IMAGING AND BEHAVIOR
(2022)
Article
Geriatrics & Gerontology
Akie Saito, Wataru Sato, Sakiko Yoshikawa
Summary: Previous studies using visual search paradigms have provided inconsistent results regarding rapid detection of emotional faces among older adults. This study aimed to examine older adults' ability to detect faces with emotional meaning by excluding the influence of visual factors. Results showed that older adults who were successful at learning could detect neutral faces associated with reward or punishment more rapidly, suggesting that they retain the ability to detect faces that evoke emotions.
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES
(2022)
Article
Psychology, Multidisciplinary
Wataru Sato, Shushi Namba, Dongsheng Yang, Shin'ya Nishida, Carlos Ishi, Takashi Minato
Summary: This study developed an android head called Nikola and conducted three studies to validate its facial expressions. The results showed that Nikola can appropriately produce facial actions and its prototypical facial expressions for basic emotions can be accurately recognized by naive participants. The speed of Nikola's dynamic facial expressions also affects emotion expression, similar to previous studies of human expressions. These findings validate the effectiveness of Nikola's emotional facial expressions and suggest its potential for future psychological studies and real-life applications.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Psychology, Experimental
Akie Saito, Wataru Sato, Sakiko Yoshikawa
Summary: This study demonstrated that faces with emotional value acquired through associative learning can be rapidly detected, indicating that emotional/motivational significance promotes the rapid detection of emotional faces. The results suggested that neutral faces associated with high reward or punishment were more quickly detected compared to those with no monetary outcomes, and reaction times were negatively related to arousal ratings.
COGNITION & EMOTION
(2022)
Article
Multidisciplinary Sciences
Taishi Sawabe, Suguru Honda, Wataru Sato, Tomoki Ishikura, Masayuki Kanbara, Sakiko Yoshikawa, Yuichiro Fujimoto, Hirokazu Kato
Summary: This study demonstrates that combining robot touch with elements of speech can enhance positive emotional responses, including higher subjective valence and arousal ratings, as well as stronger facial electromyography and skin conductance activities.
SCIENTIFIC REPORTS
(2022)
Article
Psychology, Multidisciplinary
Shushi Namba, Wataru Sato, Koyo Nakamura, Katsumi Watanabe
Summary: This study used computational modeling to analyze the process of authentic information transmission in emotional sharing. The results showed that perceiving authentic information from happy facial expressions had a higher probability, and happy expressions could activate emotional elicitation and emotion sharing in perceivers, while anger expressions only activated emotional elicitation.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Psychology, Social
Shushi Namba, Wataru Sato, Hiroshi Matsui
Summary: Smiles are universal facial expressions that convey emotions such as amusement, embarrassment, and pain. This study analyzed a facial behavior database to examine the spatial and temporal properties of these different types of smiles. The results showed that pained smiles exhibited less eye constriction and more overall facial tension compared to amused smiles, while no spatial differences were found between embarrassed and amused smiles. In terms of temporal properties, embarrassed and pained smiles remained in a higher state of facial tension for longer periods than amused smiles. Additionally, embarrassed smiles showed a more gradual transition from tension states to the smile state, and pained smiles had lower probabilities of staying in or transitioning to the smile state compared to amused smiles.
JOURNAL OF NONVERBAL BEHAVIOR
(2022)
Article
Chemistry, Analytical
Tomoki Ishikura, Yuki Kitamura, Wataru Sato, Jun Takamatsu, Akishige Yuguchi, Sung-Gwi Cho, Ming Ding, Sakiko Yoshikawa, Tsukasa Ogasawara
Summary: Pleasant touching is an important aspect of social interactions and previous research has attempted to develop robots that can provide this kind of touch. This study compared the effect of different stroke speeds on human participants' emotional responses to human and robot agents. The results showed that a speed of 8.5 cm/s was more pleasant and arousing for both human and robot strokes compared to a speed of 2.6 cm/s.
Article
Nutrition & Dietetics
Akie Saito, Wataru Sato, Akira Ikegami, Sayaka Ishihara, Makoto Nakauma, Takahiro Funami, Tohru Fushiki, Sakiko Yoshikawa
Summary: The study found commonalities and differences in subjective-physiological emotional coherence during food intake between older and younger adults, with corrugator EMG activity negatively correlated with arousal ratings in the older group.
Article
Neurosciences
Wataru Sato, Takanori Kochiyama, Sakiko Yoshikawa
Summary: Observing and understanding emotional facial expressions plays a major role in face-to-face communication, possibly through motor synchronization. Previous fMRI studies have shown activation in neocortical motor regions during the observation/execution of emotional facial expressions, but it remains unclear if other brain regions are involved and if they form a functional network. In this study, fMRI was used to investigate these issues, and the results revealed activation in multiple regions, including the amygdala, basal ganglia, cerebellum, and brainstem, suggesting the involvement of a widespread observation/execution matching network.
HUMAN BRAIN MAPPING
(2023)
Article
Chemistry, Analytical
Wataru Sato, Takanori Kochiyama
Summary: There is evidence that EMG signals from the corrugator supercilii and zygomatic major muscles can provide valuable information for emotional assessments. The study aims to investigate if crosstalk occurs in facial EMG data and how to reduce it. Participants were instructed to perform various facial actions while measuring EMG signals from different facial muscles. Independent component analysis (ICA) was used to remove crosstalk components. The results suggest that mouth actions could induce crosstalk in zygomatic major EMG signals, and ICA can reduce this effect.
Article
Medicine, General & Internal
Wataru Sato, Atsushi Nakazawa, Sakiko Yoshikawa, Takanori Kochiyama, Miwako Honda, Yves Gineste
Summary: The study found that individuals with expertise in Humanitude-care exhibit higher levels of empathy in both behavior and neural characteristics. Using a combination of behavioral measurements, functional magnetic resonance imaging (fMRI), and structural MRI, the study compared a Humanitude-care expert with a control group. The results showed that the expert had higher arousal levels and stronger facial muscle activity in response to dynamic facial expressions, as well as distinct brain activity and gray matter volume.
FRONTIERS IN MEDICINE
(2023)
Article
Psychology, Experimental
Akie Saito, Wataru Sato, Sakiko Yoshikawa
Summary: The coherence between subjective experience and bodily responses in emotion has a positive impact on well-being, especially for older adults. Previous studies have shown emotional mind-body coherence in young adults' continuous subjective, behavioral, and physiological responses to emotional films, but research on emotional coherence in older adults is limited. This study examined emotional coherence in older adults through valence ratings and behavioral responses, as well as arousal ratings and physiological measures, in response to emotion-eliciting film clips. The results showed quantitative and qualitative differences in emotional mind-body coherence between older and young adults.
Article
Chemistry, Analytical
Chun-Ting Hsu, Wataru Sato
Summary: Despite the lack of evidence of its validity, researchers have begun using automated FACS software to evaluate spontaneous facial mimicry. The automated FACS has lower detection accuracy compared to facial EMG, but AU12 mimicry responses are significantly correlated with facial EMG responses.
