263 research outputs found
Embodied emotional expressions for intuitive experience sampling methods: A demographic investigation with Japanese speakers
Experience Sampling Method (ESM) is a research procedure for monitoring ever-changing subjective emotions in our daily lives. A typical method asks participants, several times a day, to report and rate their emotions in terms of pre-defined adjective scales (e.g., “2 for sad,” and “5 for happy”). When a scale includes many adjectives, rating time is increased for participants. However, when few adjectives are provided, respondents may struggle to find descriptors that truly match their internal state, making it difficult to express the complex nuances of multiple emotions. This paper reports the development of a novel approach to ESM in which participants choose only a single word that intuitively expresses common emotion categories and intensities with minimal demands on their time. To achieve this capability, we conducted a survey with 14,321 Japanese speakers that presented a list of intuitive and embodied emotional expressions such as mimetics (e.g., “thump-thump”) and interjections (e.g., “wow”) in Japanese, categorized according to the eight primary emotions and three levels of emotional intensity used in the Plutchik model, and asked them to choose the expressions they use in their daily lives. The results showed that the most frequently used expressions were generally consistent irrespective of gender or age, and that people differentiated their use of expressions according to the category and intensity of their emotions. Our findings indicate that it is possible to create a single common list of expressions that can be used by all genders and ages to efficiently and intuitively express nuanced emotions appropriate to their inner states without the person having to think deliberately
Audiovisual semantic congruency effect with onomatopoeia
It has been reported that when a congruent natural sound precedes briefly presented visual stimuli, it promotes performance in psychophysics detection tasks. Onomatopoeias refer to words that phonetically mimic or suggest actual sounds. Onomatopoeic words are a form of sound symbolism and are frequently used in Japanese language. In this study, we examined whether the presentation of spoken Japanese onomatopoeia to Japanese native-speakers results in visual detection sensitivity changes. Results indicate that when onomatopoeias are presented 227 ms before a visual stimulus, they have a modulatory audiovisual effect. This effect is closer to the results observed with natural sounds than spoken words, with d’ being lower for onomatopoeias when compared with natural sounds. Such suggests that Japanese spoken onomatopoeias may be processed in a manner that is closer to natural sounds than spoken words and points to behavioral consequences of sound symbolism
Continuous positive airway pressure ameliorated severe pulmonary hypertension associated with obstructive sleep apnea.
A 52-year-old obese woman was admitted to our institution for evaluation of dyspnea and pulmonary hypertension (PH). Polysomnography revealed severe obstructive sleep apnea (OSA) with an apnea hypopnea index of 99.8. Treatment with nocturnal continuous positive airway pressure (CPAP) resulted in correction of daytime hypoxemia, hypercapnia, and near-normalization of pulmonary artery pressure. To our knowledge, this is the most severe case of OSA-associated PH (approximately70 mmHg) reported to date, and it was successfully treated with nocturnal CPAP. This case demonstrates that OSA should be considered and polysomnography performed in all patients with PH, irrespective of severity, and that nocturnal CPAP has therapeutic effects on both OSA and daytime PH.</p
Muscle Fiber Composition Changes after Selective Nerve Innervation
Facial nerve paralysis interferes with mimetic muscle function. To reconstruct natural facial movement, free muscle flaps are transplanted as new muscles. However, it is difficult to maintain resting tonus. A dual innervation technique in which other nerves such as the hypoglossal nerve or contralateral facial nerve are added is often applied. Using 10-week-old rats (n = 10), the masseteric and hypoglossal nerves were cut, and the distal stump of the masseteric nerve and the proximal stump of the hypoglossal nerve were then sutured (suture group). In the other group, the masseteric nerve was cut and cauterized (cut group). Immunohistochemistry and microarray were performed on the extracted masseter muscle. The immunohistochemistry results suggested that the muscles in the suture group obtained oxidative characteristics. The microarray showed the genes involved in mitochondrial function, including Perm1. In summary, our data support the validity of the dualinnervation technique for facial paralysis treatment
Genetic and epigenetic loss of miR-31 activates NIK-dependent NF-κB pathway in Adult T-cell Leukemia
Localized Brain Activation Related to the Strength of Auditory Learning in a Parrot
Parrots and songbirds learn their vocalizations from a conspecific tutor, much like human infants acquire spoken language. Parrots can learn human words and it has been suggested that they can use them to communicate with humans. The caudomedial pallium in the parrot brain is homologous with that of songbirds, and analogous to the human auditory association cortex, involved in speech processing. Here we investigated neuronal activation, measured as expression of the protein product of the immediate early gene ZENK, in relation to auditory learning in the budgerigar (Melopsittacus undulatus), a parrot. Budgerigar males successfully learned to discriminate two Japanese words spoken by another male conspecific. Re-exposure to the two discriminanda led to increased neuronal activation in the caudomedial pallium, but not in the hippocampus, compared to untrained birds that were exposed to the same words, or were not exposed to words. Neuronal activation in the caudomedial pallium of the experimental birds was correlated significantly and positively with the percentage of correct responses in the discrimination task. These results suggest that in a parrot, the caudomedial pallium is involved in auditory learning. Thus, in parrots, songbirds and humans, analogous brain regions may contain the neural substrate for auditory learning and memory
Polycomb-Mediated Loss of miR-31 Activates NIK-Dependent NF-κB Pathway in Adult T Cell Leukemia and Other Cancers
SummaryConstitutive NF-κB activation has causative roles in adult T cell leukemia (ATL) caused by HTLV-1 and other cancers. Here, we report a pathway involving Polycomb-mediated miRNA silencing and NF-κB activation. We determine the miRNA signatures and reveal miR-31 loss in primary ATL cells. MiR-31 negatively regulates the noncanonical NF-κB pathway by targeting NF-κB inducing kinase (NIK). Loss of miR-31 therefore triggers oncogenic signaling. In ATL cells, miR-31 level is epigenetically regulated, and aberrant upregulation of Polycomb proteins contribute to miR-31 downregulation in an epigenetic fashion, leading to activation of NF-κB and apoptosis resistance. Furthermore, this emerging circuit operates in other cancers and receptor-initiated NF-κB cascade. Our findings provide a perspective involving the epigenetic program, inflammatory responses, and oncogenic signaling
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