Hideki Tsumura : The Role of Cortisol in Cognitive Emotion Regulation Failure. In Nima Rezaei (ed.), Brain, Decision Making and Mental Health, Springer, Jan. 2023.
Mari Fukuda, Mohammad Chowdhury, Turin Tanvir Chowdhury, Hideki Tsumura, Rina Tsuchie, Minako Kinuta, Takashi Hisamatsu and Hideyuki Kanda : At-risk internet addiction and related factors among senior high school teachers in Japan based on a Nationwide survey, Neuropsychopharmacology Reports, 2023.
(要約)
Internet addiction (IA) has been drawing attention to mental health. However, few reports have been found on the related factors of at-risk IA among regular workers by a nationwide survey. The study aimed to evaluate the characteristics of at-risk IA and identify related factors among senior high school teachers in Japan. This survey was a cross-sectional survey of high schools across Japan in 2017. There were 3189 teachers (2088 males and 1098 female) who participated in this survey. The questionnaire asked about their devices, both the time and the activities of using their internet, and sociodemographic factors. IA was measured by the internet addiction test (IAT) by which 40-79 points were classified as at-risk IA, and more as IA. We compared the related factors of at-risk IA and non-IA using descriptive analysis and multivariable regression analysis. The rates of IA and at-risk IA were 0.09% (n = 3) and 6.91% (n = 220), respectively. At-risk IA was positively associated with activities on the internet for gaming, entertainment, net-surfing, and younger ages. In addition, the at-risk IA group had a longer time spent on the internet than the non-IA group. Around 7% of high school teachers are at-risk IA in this survey, though they have regular work. Our results suggest that at-risk IA may be reinforced not only by the active internet use such as gaming, but also by purposeless behaviors, such as net-surfing. Managing time on the internet may support preventing at-risk IA among senior high school teachers.
Hideki Tsumura, Mari Fukuda, Takashi Hisamatsu, Rie Sato, Rina Tsuchie and Hideyuki Kanda : Relationships of rapid eating with visceral and subcutaneous fat mass and plasma adiponectin concentration, Scientific Reports, Vol.13, No.1, 11491, 2023.
(要約)
Rapid eating has been demonstrated to be associated with obesity and overweight. However, few studies have characterized the separate relationships of eating speed with visceral and subcutaneous fat mass or circulating adiponectin concentration. We hypothesized that rapid eating is associated with the larger visceral fat tissue (VFT) area and lower adiponectin concentration, but not with the subcutaneous fat tissue (SFT) area in men and women. We performed a cross-sectional study of 712 adults aged 20-86 years (528 men and 184 women; mean ± SD age 59.36 ± 13.61 years). The participants completed a self-reported questionnaire, and underwent anthropometric and laboratory measurements and computed tomographic imaging of the abdomen as a part of annual medical check-ups. Multivariate linear regression analyses revealed that rapid eating was associated with larger visceral (B = 24.74; 95% CI 8.87-40.61, p = 0.002) and subcutaneous fat areas (B = 31.31; 95% CI 12.23-50.38, p = 0.001), lower adiponectin concentration (B = - 2.92; 95% CI - 4.39- - 1.46, p < 0.001), higher body mass index (BMI) (B = 2.13; 95% CI 1.02-3.25, p < 0.001), and larger waist circumference (B = 5.23; 95% CI 2.16-8.30, p < 0.001) in men, which is partially consistent with the hypothesis. In contrast, rapid eating was found to be associated only with BMI, and not with abdominal adipose area or adiponectin concentration in women, which is a result that is not consistent with the hypothesis. These results suggest that there is no difference in the association of rapid eating with VFT and SFT areas.
(キーワード)
Adult / Male / Humans / Female / Adiponectin / Cross-Sectional Studies / Obesity / Body Mass Index / Subcutaneous Fat / Intra-Abdominal Fat
Hideki Tsumura, Mari Fukuda and Hideyuki Kanda : Blunted cortisol and normal sympathetic nervous system responses to an acute psychosocial stressor in Internet addiction, Heliyon, Vol.8, No.12, e12142, 2022.
(要約)
Studies have demonstrated that addiction leads to blunted responses of cortisol and sympathetic nervous system (SNS) to acute stressors; however, limited studies have examined the neuroendocrine and SNS stress responses in Internet addiction (IA). To examine acute stress responses in IA, the current study recruited a total of 76 Japanese university students and staff members (51 females and 25 males, mean age = 22.4 years, = 4.7), and measured the salivary cortisol, salivary alpha-amylase (sAA), and blood pressure (BP) responses to an acute stressor under stress or a nonstress placebo conditions in IA and non-IA groups. The results revealed that patients with IA showed a blunted cortisol response to a stressor. In contrast, no differences were found in the sAA and BP responses between the IA and non-IA groups. These results suggest that IA may be characterized by blunted cortisol responses in acute stress settings.
Rina Tanabe, Takashi Hisamatsu, Mari Fukuda, Hideki Tsumura, Rina Tsuchie, Masako Suzuki, Nagisa Sugaya, Koshi Nakamura, Kenzo Takahashi and Hideyuki Kanda : The Association Between Problematic Internet Use and Neck Pain among Japanese Schoolteachers, Journal of Occupational Health, Vol.63, No.1, e12298, 2021.
(要約)
Problematic internet use (PIU) has been suggested in relation to psychological symptoms among schoolteachers, but the relationship with physical symptoms remains unclear. We examined whether PIU or longer Internet usage time is associated with neck pain in schoolteachers. We conducted a cross-sectional study among 2582 teachers aged 20 years or older (35.6% women) in Shimane and Tottori, Japan in 2018. Neck pain was defined as ≥5 points on the Neck Disability Index. The Compulsive Internet Use Scale (CIUS) was used to assess PIU. Internet usage time on weekdays and weekends was divided into five groups: 0, 1-29, 30-59, 60-119, and ≥120 min/day. Logistic regression analysis was conducted to examine the association of the CIUS score and Internet usage time on weekdays or weekends with neck pain, adjusting for sex, age, position at school, insomnia, and psychological distress. We observed 800 (31.0%) teachers with neck pain. The median (interquartile range) of their CIUS scores was 7 (2, 14). A higher CIUS score was independently associated with a higher prevalence of neck pain (odds ratio of 4th vs. 1st quartiles, 1.41; 95% confidence interval, 1.06-1.87; trend P = .006). Compared with non-Internet users, Internet users on weekdays had almost double the odds of neck pain although the difference did not reach the customary level for designating statistical significance. In conclusion, teachers with higher scores in CIUS were associated with a higher prevalence of neck pain in Japan, suggesting adults with PIU being at risk of physical disorders.
(キーワード)
Adult / Cross-Sectional Studies / Female / Humans / Internet Use / Japan / Male / Neck Pain / School Teachers / Time Factors / Young Adult
Rie Sato, Takashi Hisamatsu, Hideki Tsumura, Mari Fukuda, Kaori Taniguchi, Haruo Takeshita and Hideyuki Kanda : Relationship between insomnia with alcohol drinking before sleep (Ne-Zake) or in the morning (Mukae-Zake) among Japanese farmers, Alcohol, Vol.93, 57-62, 2021.
Ayumi Iwaibara, Mari Fukuda, Hideki Tsumura and Hideyuki Kanda : At-risk Internet addiction and related factors among junior high school teachers-based on a nationwide cross-sectional study in Japan., Environmental Health and Preventive Medicine, Vol.24, 2019.
(要約)
This study was a cross-sectional survey by anonymous questionnaire. This survey was a random sampling survey of junior high schools across Japan in 2016. The participants were 1696 teachers at 73 schools (response rate in teachers 51.0%). We asked participants for details of their backgrounds, Internet usage, the Internet Addiction Test (IAT) by Young, and the Japanese Burnout Scale (JBS). We divided the participants into either the at-risk IA group (IAT score ≧ 40, n = 96) or the non-IA group (IAT score < 40, n = 1600). To compare the difference between at-risk IA and non-IA, we used nonparametric tests and t test according to variables. To analyze the relationship between the IAT score and the scores of three factors of the JBS (emotional exhaustion, depersonalization, and personal accomplishment), we used both ANOVA and ANCOVA, adjusted by relevant confounding factors. To clarify the contribution of each independent variable to IAT scores, we used multiple logistic regression analysis.
(キーワード)
Adult / Analysis of Variance / Behavior, Addictive / Burnout, Psychological / Cross-Sectional Studies / Humans / Internet / Japan / Male / Middle Aged / Personal Satisfaction / Risk Factors / School Teachers / Schools / Surveys and Questionnaires
Hideki Tsumura, Hideyuki Kanda, Nagisa Sugaya, Satoshi Tsuboi, Mari Fukuda and Kenzo Takahashi : Problematic Internet Use and Its Relationship with Psychological Distress, Insomnia, and Alcoholism Among Schoolteachers in Japan, Cyberpsychology, Behavior and Social Networking, Vol.21, No.12, 788-796, 2018.
Hideki Tsumura, Hideyuki Kanda, Nagisa Sugaya, Satoshi Tsuboi and Kenzo Takahashi : Prevalence and Risk Factors of Internet Addiction Among Employed Adults in Japan., Journal of Epidemiology, Vol.28, No.4, 202-206, 2017.
(要約)
This study showed that around 5% of school personnel in a rural area in Japan are at risk for developing addiction to the Internet and that using the Internet for game playing is related to at-risk IA. Our results suggest that employed adults should be instructed to use the Internet properly.
(キーワード)
Adult / Behavior, Addictive / Cross-Sectional Studies / Employment / Female / Humans / Internet / Japan / Male / Middle Aged / Prevalence / Risk Factors / Rural Population / Surveys and Questionnaires
Shunta Maeda, Tomoya Sato, Hironori Shimada and Hideki Tsumura : Post-event Processing Predicts Impaired Cortisol Recovery Following Social Stressor: The Moderating Role of Social Anxiety., Frontiers in Psychology, Vol.8, 2017.
(要約)
There is growing evidence that individuals with social anxiety show impaired cortisol recovery after experiencing social evaluative stressors. Yet, little is known regarding the cognitive processes underlying such impaired cortisol recovery. The present study examined the effect of post-event processing (PEP), referred to as repetitive thinking about social situations, on cortisol recovery following a social stressor. Forty-two non-clinical university students (23 women, 19 men, mean age = 22.0 ± 2.0 years) completed the Trier Social Stress Test (TSST), followed by a thought sampling procedure which assessed the frequency of PEP reflecting the TSST. A growth curve model showed PEP and social anxiety interactively predicted cortisol recovery. In particular, PEP predicted impaired cortisol recovery in those with low levels of social anxiety but not in those with high levels of social anxiety, which contradicted the initial hypothesis. These findings suggest that PEP is differentially associated with cortisol recovery depending on levels of social anxiety. The possible mechanisms underlying these findings were discussed in terms of protective inhibition framework.
Yuko Murakami, Hideki Tsumura, Rie Sato, Mari Fukuda and Hideyuki Kanda : Unhealthy Mental States Are Positively Associated with Subjective Pain or Fatigue in Specific Body Sites among High School Teachers in Japan, Health, Vol.9, No.9, 1313-1325, 2017.
Hideki Tsumura, Hironori Shimada, Yuki Oshikawa and Mari Kawata : Relationship Among Automatic Thoughts, Activities and Events, and Affect in Children, International Journal of Cognitive Therapy, Vol.9, No.3, 203-216, 2016.
Takeshi Uchida, Hideyuki Kanda, Mikiko Miura, Naoki Kakazu, Hideki Tsumura, Masayuki Yamasaki, Masanori Kamura and Yasuyuki Fujita : Factors related to the awakening mood for seventh-grade students in rural Japan, International Medical Journal, Vol.23, No.5, 476-480, 2016.
Takahiro Soshi, Takamasa Noda, Kumiko Ando, Kanako Nakazawa, Hideki Tsumura and Takayuki Okada : Neurophysiological modulation of rapid emotional face processing is associated with impulsivity traits., BMC Neuroscience, Vol.16, 2015.
(要約)
These findings demonstrate that higher impulsivity is associated with attenuated vMMN for emotional change detection in healthy populations, potentially because of weakened fronto-occipital functional connection that is responsible for the dual detector mechanism.
Hideki Tsumura, Jun Sensaki and Hironori Shimada : Stress-induced cortisol is associated with generation of non-negative interpretations during cognitive reappraisal., BioPsychoSocial Medicine, Vol.9, 2015.
(要約)
Participants were allocated post-hoc to either a responder (n = 19) or non-responder group (n = 17) based on the cortisol response to the stress induction task. The number of non-negative interpretations generated following the stress induction task was reduced only in the cortisol responders. The number of post-stress non-negative interpretations was fewer in the responder group when compared by sex, baseline cortisol level, and the number of pre-stress non-negative interpretations, statistically controlled.
Takahiro Soshi, Takamasa Noda, Kumiko Ando, Kanako Nakazawa, Hideki Tsumura and Takayuki Okada : Impulsivity is Associated with Early Sensory Inhibition in Neurophysiological Processing of Affective Sounds., Frontiers in Psychiatry, Vol.6, 2015.
(要約)
Impulsivity is widely related to socially problematic behaviors and psychiatric illness. Previous studies have investigated the relationship between response inhibition and impulsivity. However, no study has intensively examined how impulsivity correlates with automatic sensory processing before the drive for response inhibition to sensory inputs. Sensory gating (SG) is an automatic inhibitory function that attenuates the neural response to redundant sensory information and protects higher cognitive functions from the burst of information processing. Although SG functions abnormally in several clinical populations, there is very little evidence supporting SG changes in conjunction with impulsivity traits in non-clinical populations. The present study recruited healthy adults (n = 23) to conduct a neurophysiological experiment using a paired-click paradigm and self-report scales assessing impulsive behavioral traits. Auditory stimuli included not only a pure tone but also white noise to explore the differences in auditory-evoked potential (AEP) responses between the two stimuli. White noise is more affective than pure tones; therefore, we predicted that the SG of AEPs (P50, N100, and P200) for white noise would correlate more with self-reported impulsivity than with those for pure tones. Our main findings showed that SG of the P50 and P200 amplitudes significantly correlated with self-reported reward responsiveness and fun-seeking, respectively, only for white noise stimuli, demonstrating that higher-scoring impulsivity subcomponents were related to greater SG. Frequency-domain analyses also revealed that greater desynchronization of the beta band for the second white noise stimulus was associated with higher motor impulsivity scores, suggesting that an impulsivity-related change of SG was associated with attentional modulation. These findings indicate that the measurement of SG of white noise may be an efficient tool to evaluate impulsivity in non-clinical populations, and should also be applied to clinical populations.
Takahiro Soshi, Kumiko Ando, Takamasa Noda, Kanako Nakazawa, Hideki Tsumura and Takayuki Okada : Post-error action control is neurobehaviorally modulated under conditions of constant speeded response., Frontiers in Human Neuroscience, Vol.8, 2015.
(要約)
Post-error slowing (PES) is an error recovery strategy that contributes to action control, and occurs after errors in order to prevent future behavioral flaws. Error recovery often malfunctions in clinical populations, but the relationship between behavioral traits and recovery from error is unclear in healthy populations. The present study investigated the relationship between impulsivity and error recovery by simulating a speeded response situation using a Go/No-go paradigm that forced the participants to constantly make accelerated responses prior to stimuli disappearance (stimulus duration: 250 ms). Neural correlates of post-error processing were examined using event-related potentials (ERPs). Impulsivity traits were measured with self-report questionnaires (BIS-11, BIS/BAS). Behavioral results demonstrated that the commission error for No-go trials was 15%, but PES did not take place immediately. Delayed PES was negatively correlated with error rates and impulsivity traits, showing that response slowing was associated with reduced error rates and changed with impulsivity. Response-locked error ERPs were clearly observed for the error trials. Contrary to previous studies, error ERPs were not significantly related to PES. Stimulus-locked N2 was negatively correlated with PES and positively correlated with impulsivity traits at the second post-error Go trial: larger N2 activity was associated with greater PES and less impulsivity. In summary, under constant speeded conditions, error monitoring was dissociated from post-error action control, and PES did not occur quickly. Furthermore, PES and its neural correlate (N2) were modulated by impulsivity traits. These findings suggest that there may be clinical and practical efficacy of maintaining cognitive control of actions during error recovery under common daily environments that frequently evoke impulsive behaviors.
Self-focused attention can contribute to increasing depressive moods. It is known that attending to self-referential stimuli that direct attention inward might induce self-focused attention. Distractions help to disengage attention from self-referential stimuli. However, the effects of distractions in attenuating the detrimental influences of self-focused attention on cognitive appraisal, depressive mood, and attentional resources, while attending to self-referential stimuli have not been investigated. This study examined whether walking exercise, which is a behavioral distraction technique, would attenuate the effects of self-focused attention. Undergraduate and graduate students (<i>N</i>=42) participated in walking exercise, while attending to self-referential stimuli. Then, they completed the Cognitive Appraisal Rating Scale (CARS), the depressive mood subscale of the Mood Inventory, and a digit span task, for assessing cognitive appraisal, depressive mood, and attentional resources, respectively. Results indicated that the walking exercise reduced the scores for appraisal for effect, which is a subscale of CARS, and lowered depressive mood scores. However, walking exercise had no effect on attentional resource scores. These results suggest that walking exercise modified the appraisal for effect and reduce depressive mood while attending to self-referential stimuli.
Hideki Tsumura, Hironori Shimada, Hiroshi Morimoto, Chihiro Hinuma and Yoshiko Kawano : Effects of distraction on negative behaviors and salivary α-amylase under mildly stressful medical procedures for brief inpatient children., Journal of Health Psychology, Vol.19, No.8, 1079-1088, 2013.
(要約)
Inconsistent results have been reported on the effects of distraction on negative emotions during medical procedures in infants. These differing results may be attributable to the fact that the effects are apparent under a mildly stressful medical procedure. A total of 17 infants, 18 preschoolers, and 15 school-aged children who were hospitalized were administered, monitoring for vital signs, a mildly stressful medical procedure, by a nurse in a uniform with attractive character designs as a distractor. Consistent with the hypothesis, participating infants showed fewer negative behaviors and lower salivary α-amylase levels when distracted. The results support the efficacy of distraction in infants under a mildly stressful medical procedure.
Hideki Tsumura, Hironori Shimada, Kazutaka Nomura, Nagisa Sugaya and Katsuhiko Suzuki : The effects of attention retraining on depressive mood and cortisol responses to depression-related stimuli, The Japanese Psychological Research, Vol.54, No.4, 400-411, 2012.
Hideki Tsumura and Hironori Shimada : Acutely elevated cortisol in response to stressor is associated with attentional bias toward depression-related stimuli but is not associated with attentional function., Applied Psychophysiology and Biofeedback, Vol.37, No.1, 19-29, 2012.
(要約)
Cortisol induces attentional bias toward a negative stimulus and impaired attentional function. Depressed individuals have high levels of cortisol, and exhibit an attentional bias toward a depression-related stimulus and impaired processing speed and executive attention, which are components of attentional function. Therefore, the study tested the hypotheses that an acute increase in cortisol in response to a stressor is associated with attentional bias toward a depression-related stimulus and impaired processing speed and executive attention. Thirty-six participants were administered the dot-probe task for the measurement of attentional bias toward a depression-related stimulus and the Trail Making Test A and B for the measurement of processing speed and executive attention before and after a mental arithmetic task. It was revealed that attentional bias toward a depression-related stimulus following the stressor was observed only among the responders (i.e., participants with cortisol elevation in response to a stressor). On the other hand, no differences in the performance of processing speed and executive attention were noted between the responders and non-responders. The results indicate that acutely elevated cortisol is related to attentional bias, but is not related to processing speed and executive attention. The results have an implication for the etiology of depression.
(キーワード)
Adult / Attention / Depression / Executive Function / Female / Humans / Hydrocortisone / Male / Neuropsychological Tests / Psychiatric Status Rating Scales / Saliva / Stress, Psychological / Young Adult
Hideki Tsumura and Kentaro Kusunoki : Attentional bias for Internet-related information and emotional information in Internet addiction: moderating role of sleep impairment, PsyArXiv, 2024.
Sato Rie, Hisamatsu Takashi, Hideki Tsumura, Fukuda Mari, Esumi Yukio, Mikajiri Kaoru, Tamura Shusaku and Kanda Hideyuki : The Relationship Between Alcohol Drinking Before Sleeping(Ne-Zake) or in the Morning(Mukae-Zake) and Sleeplessness Among Farmers, American Heart Association Epidemiology and Prevention, Arizona, Mar. 2020.