Brain rhythms regulate information processing in different states to enable learning and memory formation. The <1 Hz sleep slow oscillation hallmarks slow-wave sleep and is critical to memory consolidation. Here we show in sleeping humans that auditory stimulation in phase with the ongoing rhythmic occurrence of slow oscillation up states profoundly enhances the slow oscillation rhythm, phase-c...

Twenty percent of cases of cardiac tamponade are of malignant etiology, according to autopsy series. The most common cause is lung cancer, followed by breast and esophageal cancer, melanoma, lymphoma, and leukemia. Papillary thyroid carcinoma is a very rare cause of malignant cardiac tamponade, and is even more exceptional as the first sign of the disease. A 56-year-old female patient with nodu...

We evaluated the effects of slow-rate atrial pacing on impulse formation of the sinus node in 13 isolated rabbit right atria using the microelectrode technique. After the spread of activation was mapped to determine true sinoatrial conduction time (SACT) (38 ± 16 msec [± SD]), the atrium was paced for eight beats at constant intervals slightly shorter than spontaneous cycle length in steps of 1...

■ Durational patterns provide cues to linguistic structure, and so variations in rhythm skills may have consequences for language development. Understanding individual differences in rhythm skills, therefore, could help explain variability in language ability across the population. We investigated the neural foundations of rhythmic proficiency and its relation to language skills in young adults...

A 32-year-old patient, in the 17th week of her first pregnancy, was admitted to the local hospital with complaints of palpitations and shortness of breath, which progressed over a month. The patient had no prior history of any cardiac disease. At the time of admission, the electrocardiogram (ECG) of the patient revealed that she had supraventricular tachycardia. When the patient did not respond...

are often seen and make interpretation more difficult. Some are not understood on the basis of physiology and clinical implication. For others, no pathological substrate or epileptic condition explains these patterns. Background activity refers to the EEG rhythm corresponding to the patient’s age and state of consciousness. The alpha rhythm is in the range of 8 to 12 Hertz (Hz), has a sinusoida...

Abstract Although uncommon in the general population, hyperkalemia can affect up to 50% of patients with heart failure who are receiving MRA and/or affected by CKD . Since potassium is most abundant intracellular cation, hyperkaliemia causes a profound change action potential, which manifests as expected electrocardiographic changes (lower voltage P wave, AV block, wide QRS, high T wave) and ar...

The feasibility of a real-time electrocardiogram (ECG) transmission via satellite phone from Mount Everest to determine a climber's suitability for continued ascent was examined. Four Taiwanese climbers were enrolled in the 2009 Mount Everest summit program. Physiological measurements were taken at base camp (5300 m), camp 2 (6400 m), camp 3 (7100 m), and camp 4 (7950 m) 1 hour after arrival an...

Our goal is to develop an interactive music robot, i.e., a robot that presents a musical expression together with humans. A music interaction requires two important functions: synchronization with the music and musical expression, such as singing and dancing. Many instrument-performing robots are only capable of the latter function, they may have difficulty in playing live with human performers...

We consider that a low-frequency, sinusoidal rhythm detected by Electronic Fetal Monitoring (EFM) is a typical manifestation of a placental abruption. We present the case of a 26-year-old woman who was gestational 36 weeks. She had irregular contractions. The EFM showed a low-frequency, sinusoidal rhythm. The cycle of the sine curve increased in time from 90 seconds to 160 seconds gradually. A ...