To examine whether withdrawal of cardiac vagal efferent nerve activity (CVNA) predominantly controls the tachycardia at the start of exercise, the responses of CVNA and cardiac sympathetic efferent nerve activity (CSNA) were directly assessed during fictive motor activity that occurred spontaneously in unanesthetized, decerebrate cats. CSNA abruptly increased by 71 ± 12% at the onset of the mot...

BACKGROUND The association between motor imagery ability and brain neural activity that leads to the manifestation of a motor illusion remains unclear. OBJECTIVE In this study, we examined the association between the ability to generate motor imagery and brain neural activity leading to the induction of a motor illusion by vibratory stimulation. METHODS The sample consisted of 20 healthy in...

Neural decoding of motor control of hand and arm movements in primates is a challenging task that requires developing statistical models that explain how the recorded neural population activity relates to motor behavior. Until recently, much of the work in this area has focused on learning linear models of decoding for low-dimensional motor control, such as 2D control of a computer cursor. Capt...

Neural decoding of motor control of hand and arm movements in primates is a challenging task that requires developing statistical models that explain how the recorded neural population activity relates to motor behavior. Until recently, much of the work in this area has focused on learning linear models of decoding for low-dimensional motor control, such as 2D control of a computer cursor. Capt...

OBJECTIVE To compare the activity patterns of inpatients with unipolar depression, who had been divided into groups with and without motor retardation prior to actigraphy monitoring. METHOD Twenty-four-hour actigraphy recordings from 52 consecutively, acutely admitted inpatients with unipolar depression (ICD-10) were compared to recordings from 28 healthy controls. The patients, admitted betw...

Few previous studies have discussed the changes in serotonin receptor activity in the small intestine of diabetic animals. Therefore, we examined serotonin content in duodenal tissue and dose-dependent effects of serotonin agonists and antagonists on the motor activity of ex vivo vascularly perfused duodenum of streptozotocin (STZ)-diabetic rats. Serotonin content was significantly increased in...

In Iranian traditional medicine, plants belonging to Inula genus have been used for the treatment of seizure. We decided to investigate the anticonvulsant activity of seven species from this genus to find an effective remedy for seizure with less adverse effects compared to available medicines. Aqueous and methanolic extracts of Inula britannica, Inula helenium, Inula viscidula, Inula oculus-ch...

Blocking motor cortical output with lesions or pharmacological inactivation has identified movements that require motor cortex. Yet, when and how motor cortex influences muscle activity during movement execution remains unresolved. We addressed this ambiguity using measurement and perturbation of motor cortical activity together with electromyography in mice during two forelimb movements that d...

The activity of the motor cortex during locomotion is profoundly modulated in the rhythm of strides. The source of modulation is not known. In this study we examined the activity of one of the major sources of afferent input to the motor cortex, the ventrolateral thalamus (VL). Experiments were conducted in chronically implanted cats with an extracellular single-neuron recording technique. VL n...

This study evaluated whether motor activity prior to birth is predictive of motor behavior and temperament in neonates, infants, and toddlers. Three measures of fetal motor activity (activity level, amplitude, and number of movements) were collected at 24, 30, and 36 weeks of gestation in 52 healthy fetuses using Doppler-based actography. Postnatal data collection included a neurobehavioral ass...