Abstract:
:We examined the effects of monochromatic light on the time sense and the central nervous system. Nine young adult volunteers participated in this study. They were exposed to red-light and blue-light environments (illuminance was kept at 310 lx). We evaluated the time sense by time-production tests of 90 s and 180 s and measured the P300 event-related potentials during an auditory oddball task. The 90-s time intervals produced by subjects in the two monochromatic light conditions were not significantly different. However, the 180-s time interval produced in the red-light condition (163.2+/-50.4 s) was significantly (p<0.05) shorter than that in the blue-light condition (199.0+/-54.4 s). The peak latency of P300 in the red light (322.2+/-26.6 ms) was found to be significantly (p<0.05) shorter also than that in the blue light (332.6+/-20.2 ms). The feelings measured by the visual analogue scales in the two light conditions were not significantly different. These results indicate that the time sense ran faster in the red-light than in the blue-light condition. We suggest that the higher activity in the central nervous system that is accounted for by the shorter latency of P300 is related to the acceleration of the time sense.
journal_name
J Physiol Anthropoljournal_title
Journal of physiological anthropologyauthors
Katsuura T,Yasuda T,Shimomura Y,Iwanaga Kdoi
10.2114/jpa2.26.95subject
Has Abstractpub_date
2007-03-01 00:00:00pages
95-100issue
2eissn
1880-6791issn
1880-6805pii
JST.JSTAGE/jpa2/26.95journal_volume
26pub_type
杂志文章abstract:BACKGROUND:Bright light at night is known to suppress melatonin secretion. Novel photoreceptors named intrinsically photosensitive retinal ganglion cells (ipRGCs) are mainly responsible for projecting dark/bright information to the suprachiasmatic nucleus and thus regulating the circadian system. However, it has been s...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-018-0183-9
更新日期:2018-10-19 00:00:00
abstract::The soleus, one of the triceps surae muscles, greatly contributes to standing and walking. Strength training focused on the soleus could be important to prevent age-related deterioration in these functions. We therefore investigated the effects of regular heel-raise training focused on the soleus for the elderly. Fort...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.29.23
更新日期:2010-01-01 00:00:00
abstract::The aim of this study was to investigate the effects of vegetable tablets containing Gamma-Aminobutyric Acid (GABA) intake on cardiovascular response and the autonomic nervous system in young adults. In a double-blind, randomized controlled trial, 7 healthy subjects were assigned to take vegetable tablets (10 g/trial)...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章,随机对照试验
doi:10.2114/jpa2.28.101
更新日期:2009-01-01 00:00:00
abstract::A specially designed mental task was performed by 16 subjects for frequency domain analysis of skin conductance (SC) to evaluate mental workload. The task was to memorize target letters, detect them within a 4 x 4 alphabet arrangement, and answer whether the number of targets contained in the arrangement corresponded ...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.27.173
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Age-related changes affect driving ability, including the smoothness of driving. This operation requires the use of both allocentric strategies (based on world-centered representations) and egocentric strategies (based on self-centered representations); however, with age, a greater preference for egocentric ...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-020-00227-9
更新日期:2020-08-27 00:00:00
abstract:BACKGROUND:The specific role of the oxytocin receptor (OXTR) gene polymorphisms in emotional support seeking, related to social norms and culturally normative behavior, has been discussed in several studies. Evidence on the association between aggression and OXTR polymorphisms has also been reported. The goal of the cu...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
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更新日期:2020-08-14 00:00:00
abstract:BACKGROUND:Malaysia recorded the highest number of dengue cases between 2014 and 2017. There are 13 states and three federal territories in Malaysia, and each area varies in their prevalence of dengue. Sabah is one of the states situated in Borneo, Malaysia. Although dengue has been increasing for the last several year...
journal_title:Journal of physiological anthropology
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更新日期:2020-08-14 00:00:00
abstract:BACKGROUND:Empathy is deeply linked with the ability to adapt to human social environments. The present study investigated the relationship between the empathy trait and attention elicited by discriminating facial expressions. METHODS:Event-related potentials were measured while 32 participants (17 men and 15 women) d...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-33-4
更新日期:2014-01-24 00:00:00
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journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-020-00244-8
更新日期:2020-11-16 00:00:00
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journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.27.309
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:Diversity among human leukocyte antigen (HLA) molecules has been maintained by host-pathogen coevolution over a long period of time. Reflecting this diversity, the HLA loci are the most polymorphic in the human genome. One characteristic of HLA diversity is long-term persistence of allelic lineages, which ca...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-33-14
更新日期:2014-06-13 00:00:00
abstract::The purpose of this study was to comparatively investigate the energy expenditure of jumping on sand and on a firm surface. Eight male university volleyball players were recruited in this study and performed 3 sets of 10 repetitive jumps on sand (the S condition), and also on a force platform (the F condition). The su...
journal_title:Journal of physiological anthropology
pub_type: 临床试验,杂志文章
doi:10.2114/jpa2.25.59
更新日期:2006-01-01 00:00:00
abstract::The purposeful application of fermentation in food and beverage preparation, as a means to provide palatability, nutritional value, preservative, and medicinal properties, is an ancient practice. Fermented foods and beverages continue to make a significant contribution to the overall patterns of traditional dietary pr...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章,评审
doi:10.1186/1880-6805-33-2
更新日期:2014-01-15 00:00:00
abstract:BACKGROUND:The prevalence of allergic and autoimmune conditions has been steadily increasing in wealthy nations over the past century. One hypothesis put forward to explain this is the Old Friends Hypothesis, which posits that increased hygiene, urbanization, and lifestyle changes have reduced our exposure to parasites...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-020-00228-8
更新日期:2020-07-16 00:00:00
abstract:BACKGROUND:Flight controllers of the International Space Station (ISS) are engaged in shift work to provide 24-h coverage to support ISS systems. The purpose of this study was to investigate the prevalence and associated factors of shift work sleep disorder (SWSD) among Japanese ISS flight controllers. METHODS:A quest...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-016-0108-4
更新日期:2016-09-01 00:00:00
abstract::The purpose of this study was to compare the cardiovascular responses to different types of mental stress. Ten healthy males performed a mental arithmetic task (MA) on one day and were exposed to white noise (WN, 80dB) on another day. Both the MA and the WN were composed of four 5-min consecutive periods with a 3-min ...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.26.165
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Activation timings of postural muscles of lower legs and prediction of postural disturbance were investigated in young and older adults during bilateral arm flexion in a self-timing task and an oddball task with different probabilities of target presentation. Arm flexion was started from a standing posture w...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-017-0160-8
更新日期:2017-12-22 00:00:00
abstract:BACKGROUND:Reaction time for anti-saccade, in which the gaze is directed to the position opposite to an illuminated target, shortens during maintenance of neck flexion. The present study applied transcranial magnetic stimulation (TMS) to the frontal oculomotor field, and investigated the effect of maintaining neck flex...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-32-21
更新日期:2013-11-13 00:00:00
abstract::Previous studies have demonstrated that during lower-body exercise the percentage of heart rate reserve (%HRR) is equivalent to the percentage of the oxygen consumption reserve (%V˙O(2R)) but not to a percentage of the peak oxygen consumption (%V˙O(2peak)). The current study examined these relationships in trained sur...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.29.189
更新日期:2010-01-01 00:00:00
abstract::Mechanical stimuli have often been suggested to be the major determinant of resistance training adaptations; however, some studies suggested that metabolic changes also play an important role in the gains of muscle size and strength. Several resistance training methods (RTM) have been employed with the purpose of mani...
journal_title:Journal of physiological anthropology
pub_type: 临床试验,杂志文章
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更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:Non-shivering thermogenesis (NST) involves a substantial amount of energy expenditure in humans and, thus, contributes to reducing the risk for obesity. Molecular evolutionary studies have reported that SNPs in/near the uncoupling protein 3 gene (UCP3) and the regulatory associated protein of mTOR complex 1 ...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-33-38
更新日期:2014-12-22 00:00:00
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journal_title:Journal of physiological anthropology
pub_type: 杂志文章
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更新日期:2019-10-26 00:00:00
abstract::The effects of reward and punishment are different, and there are individual differences in sensitivity to reward and punishment. The purpose of this study was to investigate the effects of reward and punishment on task performance, mood, and autonomic nervous function, along with the interaction with personality. Twe...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.28.181
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:Many women become obese during pregnancy and the postpartum period. Weight gain and obesity in the general population are often attributed to abnormalities of autonomic nervous system (ANS) activity. The aim of this study was to clarify change in ANS activity, body weight, percentage fat mass (%FM), and body...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-016-0115-5
更新日期:2016-10-27 00:00:00
abstract:BACKGROUND:The purpose of the present study is to investigate effects of tryptophan intake and light exposure on melatonin secretion and sleep by modifying tryptophan ingestion at breakfast and light exposure during the daytime, and measuring sleep quality (by using actigraphy and the OSA sleep inventory) and melatonin...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-33-33
更新日期:2014-11-19 00:00:00
abstract::The purpose of the study was to assess whether the point of deflection from linearity of heart rate (HRD) could be used as an alternative method to determine the ventilatory threshold (VT) in Indian (Bengali) boys that represents the determination of the anaerobic threshold (AT), and also to standardize an exercise te...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.26.31
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:The present study analyses changes in body composition over the course of a working week. The purpose of the study is to identify the size of the changes in the observed parameters by means of typical error of measurement (TE) as the initial value for the interpretation of the detected changes in the repeate...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/s40101-015-0070-6
更新日期:2015-09-22 00:00:00
abstract:BACKGROUND:The purpose of this study was to examine maturity-related differences in anthropometry and body composition in Japanese youth within a single year. METHODS:Two hundred and ten Japanese youth aged from 13 to 13.99 years participated in this study. Their maturity status was assessed using a self-assessment of...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.1186/1880-6805-32-5
更新日期:2013-03-12 00:00:00
abstract:BACKGROUND:Activated mineralocorticoid receptors influence the association between daily salt intake and blood pressure. A relatively low mineralocorticoid receptor function is reported to be a risk for mental distress such as depression. Since mental distress is also a known risk for hypertension and cardiovascular di...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
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更新日期:2015-06-25 00:00:00
abstract::The origin of the slow component (SC) of oxygen uptake kinetics, presenting during exercise above the ventilatory threshold (VT), remains unclear. Possible physiologic mechanisms include a progressive recruitment of type II muscle fibers. The purpose of this study was to examine alterations in muscle activity through ...
journal_title:Journal of physiological anthropology
pub_type: 杂志文章
doi:10.2114/jpa2.26.541
更新日期:2007-09-01 00:00:00