Psychophysiology -- Human Behavior and Physiological Response

McGuigan, F. J.; Andreassi, John L.

doi:10.2307/1422751

Cited by 169 publications

(32 citation statements)

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“…Increased RT power spectrum is indicative of physiological relaxation [ 41 , 42 ], and increased RHB power spectrum indicates increased stress and anxiety [ 43 , 44 ]. Therefore, in this study, when looking at a real plants, the participants experienced physiological relaxation as well as a reduction in stress and anxiety.…”

Section: Resultsmentioning

confidence: 99%

“…The beta wave improves concentration and attention with 13 to 30 Hz of fast waves [ 40 ]. Beta waves are subdivided into low beta waves, medium beta waves, and high beta waves, with high beta waves ranging from 20 to 30 Hz [ 48 ], appearing in muscle tension and elevated blood pressure, tension and anxiety, and stress [ 43 , 44 ]. Therefore, in this study, the RT power spectrum increases and the RHB power spectrum decreases, producing a feeling of comfort simply by looking at a real plant, which leads to a clear mind as well as a reduction in anxiety and stress.…”

Section: Discussionmentioning

confidence: 99%

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Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

Jeong

Park

2021

IJERPH

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This study was designed to assess the physiological and psychological benefits of visually looking at foliage plants in adults. This study involved 30 adults in their 20s (11 males, 19 females), and using a crossover design, participants looked at four different types of visual stimuli, namely, real plants, artificial plants, a photograph of plants, and no plants for 5 min. Brain waves were measured while viewing each type of plant, and a subjective evaluation of emotions was performed after each visual stimulus. Semantic differential methods (SDM) and Profile of Mood States (POMS) were used for the subjective evaluation. During the real plant visual stimulation, relative theta (RT) power spectrum was increased in the bilateral occipital lobes, while relative high beta (RHB) power spectrum was reduced in the left occipital lobe, indicating a reduction in stress, anxiety, and tension. The subjective survey results revealed that when looking at real plants, the participants exhibited significantly higher “comfort,” “natural,” and “relaxed” scores as well as an increase in positive mood conditions. In conclusion, among the four types of plants, visual stimulation with real plants induces physiological relaxation in adults and has a positive psychological effect.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

Jeong

Park

2021

IJERPH

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“…As the heart responds to external sensory inputs such as visual information transmitted to the brain through afferent pathways, cognitive processes occur not only in the brain, but also through brain–heart connectivity, which influences the cognitive function [ 59 , 73 ]. Pupillary rhythms (i.e., change in pupil size) are strongly affected by the regulation of the sympathetic and parasympathetic nervous system (autonomic balance) based on the contraction function of the sphincter and dilator muscles, and the autonomic balance is determined by the HRP [ 45 , 47 , 48 , 74 ]. If a pattern of irregular and unstable heart rhythms is related to cognitive load, the irregular rhythm of the pupil can also be interpreted as being related to cognitive load.…”

Section: Discussionmentioning

confidence: 99%

Non-Contact Measurement of Motion Sickness Using Pupillary Rhythms from an Infrared Camera

Park

Mun

et al. 2021

Sensors

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Both physiological and neurological mechanisms are reflected in pupillary rhythms via neural pathways between the brain and pupil nerves. This study aims to interpret the phenomenon of motion sickness such as fatigue, anxiety, nausea and disorientation using these mechanisms and to develop an advanced non-contact measurement method from an infrared webcam. Twenty-four volunteers (12 females) experienced virtual reality content through both two-dimensional and head-mounted device interpretations. An irregular pattern of the pupillary rhythms, demonstrated by an increasing mean and standard deviation of pupil diameter and decreasing pupillary rhythm coherence ratio, was revealed after the participants experienced motion sickness. The motion sickness was induced while watching the head-mounted device as compared to the two-dimensional virtual reality, with the motion sickness strongly related to the visual information processing load. In addition, the proposed method was verified using a new experimental dataset for 23 participants (11 females), with a classification performance of 89.6% (n = 48) and 80.4% (n = 46) for training and test sets using a support vector machine with a radial basis function kernel, respectively. The proposed method was proven to be capable of quantitatively measuring and monitoring motion sickness in real-time in a simple, economical and contactless manner using an infrared camera.

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“…The validity and reliability of the instruments have been previously established (Ramadan and Alhaag [ 36 ]). The positions of the frontal region (F3 and F4) were determined in accordance with the 10–20 international standards for EEG electrode placement [ 61 ]. Subsequently, the Ag/AgCl disk electrodes, held using the emotive headset, were placed on definitively arranged regions (frontal region, forehead, and mastoid) after filling with super gel.…”

Section: Methodsmentioning

confidence: 99%

Investigating the Immediate Influence of Moderate Pedal Exercises during an Assembly Work on Performance and Workload in Healthy Men

et al. 2021

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Physical inactivity has increased in prevalence among adults in industrialized and developing countries owing to the fact that the majority of job situations require individuals to remain seated for extended periods of time. This research aims to evaluate the influence of cycling on a stationary bike while executing a keyboard assembly task on the task completion time, error percentage, and physiological and subjective measurements. The physiological measures were electroencephalography (EEG) and electrocardiographic (ECG) signal responses, whereas the subjective measures were subjective workload ratings and subjective body discomforts. Two variables were evaluated, namely assembly methods (with versus without pedal exercises at a moderate intensity) and session testing (pre- versus post-test). Thus, the repeated measures design (i.e., assembly method by session testing of participants) was used. According to the completion time, error %, participant self-reports, and ECG and EEG statistical analysis data, the participants’ performances in the keyboard assembly task did not decrease while they performed pedaling exercises (p > 0.05). Additionally, when participants completed the assembly task while executing the pedaling exercises, the mean inter-beat (RR) intervals significantly reduced (p < 0.05) while the mean heart rate increased (p < 0.05), which mean that pedaling exercises caused physical workloads on the participants. Participant performance was unaffected by performing a workout while performing the assembly activity. Thus, administrations should encourage their employees to engage in short sessions of moderate-intensity exercise similar to the suggested exercise in the study to improve a person’s physical health during work without interfering with the effectiveness of work.

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Psychophysiology -- Human Behavior and Physiological Response

Cited by 169 publications

References 0 publications

Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

Non-Contact Measurement of Motion Sickness Using Pupillary Rhythms from an Infrared Camera

Investigating the Immediate Influence of Moderate Pedal Exercises during an Assembly Work on Performance and Workload in Healthy Men

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