解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::1. In order to investigate the effects of an imbalance in stimulation to the eyes without the confounding influence of continuous deprivation of one eye, we reared cats with unequal alternating monocular exposure (AME) and, for comparison, cats with equal AME. We recorded extracellularly from single cells in area 17 o...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1983.49.3.804
更新日期:1983-03-01 00:00:00
abstract::1. A network of four pairs of interneurons, HN(1)-HN(4), times the heartbeat of the medicinal leech. The following model accounts for the stable phase relationships in the network and the network's response to perturbation, entrainment, and stimulation. 2. There are two centers of oscillation, one the HN(3) pair in th...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1983.49.3.627
更新日期:1983-03-01 00:00:00
abstract::1. The shared inputs to cat retinal ganglion cells have been investigated by studying correlations in the maintained firing of neighboring ganglion cells. The firing of one cell was recorded from its axon in the optic tract, while that of a neighboring cell was simultaneously recorded with a second electrode in the re...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1983.49.2.303
更新日期:1983-02-01 00:00:00
abstract::1. Opaline release in Aplysia provides a simple model system for examining the biochemical and electrophysiological mechanisms underlying glandular secretion and its modulation. The opaline gland is a large multivesicular structure, which is innervated by at least three large identified motor neurons located within th...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.48.6.1347
更新日期:1982-12-01 00:00:00
abstract::1. This study demonstrates plasticity of the vestibuloocular reflex (VOR) in chickens and compares it to that of other species and to that of newly hatched chicks. Adaptive changes in the VOR were induced by subjecting the animals to combinations of visual and vestibular stimuli that simulated the effect of the VOR be...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.48.4.952
更新日期:1982-10-01 00:00:00
abstract::1. Single- and multiunit recordings were obtained from neurons in the auditory cortex of the echolocating bat Myotis lucifugus, while trains of stimuli designed to simulate the bat's frequency-modulated (FM) orientation pulse and its returning echo were delivered. It was found that many neurons in the cortex responded...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.48.4.1011
更新日期:1982-10-01 00:00:00
abstract::1. The retinotopic organization of retinal inputs from the lateral eye of Limulus to the optic ganglia of the brain was determined from microelectrode recordings of nerve impulses. 2. The central connections of the natural subunits of the lateral optic nerve were determined using cobalt impregnation of cut axons. 3. C...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.48.2.505
更新日期:1982-08-01 00:00:00
abstract::1. A variety of pharmacological tests indicate that the neuromuscular junction between the salivary burster neuron (SB) and the salivary duct muscle (SD) in the terrestrial mollusk Limax maximus is cholinergic. These include the effects of curare, atropine, and hexamethonium. 2. Exogenously applied choline can act bot...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.48.2.439
更新日期:1982-08-01 00:00:00
abstract::1. Subdivided portions of the cut ventral root innervation of the soleus muscle were electrically stimulated in 14 anesthetized cats. The stimulus trains imposed on these nerves simulated the recruitment and rate-modulation patterns of single motor units recorded during stretch-reflex responses in decerebrate preparat...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.47.5.797
更新日期:1982-05-01 00:00:00
abstract::1. Electron microscope studies using ruthenium red, horseradish peroxidase, and colloidal lanthanum disclosed a feature characteristic of the snake spindle capsule: it consists of a single layer of flattened cells connected in series, each of which forms a cylinder enclosing the intrafusal fiber. 2. In intact spindles...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.47.5.810
更新日期:1982-05-01 00:00:00
abstract::1. One hundred seventy-nine single units were studied in the superior colliculus of seven Dutch-belted rabbits following ablation of the ipsilateral visual cortex. The response characteristics of these units were compared with those of 284 single units recorded from the superior colliculus of 20 intact animals. 2. In ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1982.47.2.272
更新日期:1982-02-01 00:00:00
abstract::1. Neuronal responses to cutaneous and noncutaneous stimulation were examined in the hindlimb representation of the precentral motor cortex (MI) and the first somatosensory cortex (SI) of unanesthetized monkeys. 2. MI can be divided into two distinct parts of the basis of its afferent input. The rostral part receives ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1981.45.3.467
更新日期:1981-03-01 00:00:00
abstract::1. Intracellular recordings near the output terminals of an identified interneuron (the descending contralateral movement detector, DCMD) in the locust revealed the occurrence of depolarizing synaptic potentials. These presynaptic depolarizing potentials were evoked by spikes in both DCMDs, by auditory stimuli, and by...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1981.45.3.501
更新日期:1981-03-01 00:00:00
abstract::1. Several heart interneurons (HN cells) of the leech nerve cord have impulse-initiation sites in every segmental ganglion through which their single axons pass. All these initiation sites are capable of producing rhythmic impulse bursts. However, under normal conditions a dominant primary initiation site in the gangl...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.44.5.878
更新日期:1980-11-01 00:00:00
abstract::1. The modulation of reflex responses in up to 10 simultaneously recorded hindlimb muscles was studied in unrestrained cats walking on a treadmill. Single electrical shocks of various strengths were applied to different skin areas of teh hindlimb at different times of the step cycle while the resulting EMG responses w...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.44.5.1024
更新日期:1980-11-01 00:00:00
abstract::1. Membrane currents of normal and TEA-injected cat lumbar motoneurons were investigated using the technique of somatic voltage clamp. 2. The current-voltage (I-V) relation of healthy motoneurons contains a region of negative slope conductance caused by a persistent inward current component (Ii). In the most striking ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.43.6.1700
更新日期:1980-06-01 00:00:00
abstract::1. The capacity for judging the location of an object relative to the body (egocentric localization) was assessed in cats by measuring the landing position attained when the cat jumped toward a platform viewed from a known distance. 2. Normal cats and kittens land at center of the platform when using one eye or both. ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.43.3.792
更新日期:1980-03-01 00:00:00
abstract::1. Intracellular recording techniques were used to study individual neurons in the cat parasympathetic vesical pelvic ganglion (VPG). 2. Active and passive electrical properties were determined from 140 ganglion cells (35 preparations). 3. Three types of ganglion cells were distinguished. Type I (A and B) cells were n...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.43.2.343
更新日期:1980-02-01 00:00:00
abstract::1. To analyze further the sensory mechanisms for triggering the lordosis reflex, single-unit (n = 345) activity was recorded extracellularly from spinal segments L5-S1 of urethan-anesthetized female rats. Unit responses to pressure on the skin (necessary and sufficient for evoking lordosis) and other mechanical stimul...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.43.1.27
更新日期:1980-01-01 00:00:00
abstract::1. Evoked potentials restricted to the magnocellular portion of the mediodorsal nucleus (MDmc) of the thalamus were recorded after stimulation of the olfactory bulb (OB) and the posterior orbital cortex of the frontal lobe (OFC). Potentials evoked by stimulation of OB were probably trans-synaptically elicited, while p...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1980.43.1.69
更新日期:1980-01-01 00:00:00
abstract::1. In taste neurophysiology, from Pfaffmann's (49, 50) pioneering work until the present, the possibility of types of neurons corresponding in some sense with the "primary" taste qualities of Henning (33) has been entertained: recently types of gustatory neurons in peripheral nerves have been established according to ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.5.1390
更新日期:1979-09-01 00:00:00
abstract::1. The responses of single neurons in the primary somatosensory cortex of the cat to brief air-pulse stimuli were quantitatively examined. These controlled natural stimuli activated almost exclusively rapidly adapting hair units which, on systematic movement of the stimulus through the receptive field, gave unit-respo...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.4.1061
更新日期:1979-07-01 00:00:00
abstract::1. Semi-isolated preparations of the nine-celled cardiac ganglion of the crab, Portunus sanguinolentus, were studied electrophysiologically, using simultaneous recording from extracellular and two or three intracellular electrodes. Nine penetrations of small cells were achieved. 2. Three large (80 x 120 micron) cells ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.4.975
更新日期:1979-07-01 00:00:00
abstract::1. The electrical threshold of the terminations of single group Ia and II afferent fibers was transiently reduced by the antidromic discharge of the initial segment of spinal motoneurons in the cat. 2. This depolarization of the terminals of afferent fibers known to synapse on motoneurons confirms previous observation...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.3.635
更新日期:1979-05-01 00:00:00
abstract::1. Action potentials of crayfish claw motor neurons were recorded during both imposed constant-velocity displacements and imposed alternating sequences of opening and closing step movements of the dactyl. 2. Peristimulus time (PST) histograms show that the firing probabilities of two neurons, the opener inhibitor (OI)...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.2.368
更新日期:1979-03-01 00:00:00
abstract::1. Red rod photoreceptors in the toad retina, which are known to be physiologically coupled, were examined for interreceptor contacts. 2. A dense network of large gap junctions was found between the inner segments of red rods, this being the only specialized site of contact that was observed between rods. Each red rod...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.1.292
更新日期:1979-01-01 00:00:00
abstract::1. Pressure on the skin of the tail base and perineum of female rats in the range of 40--440 millibars, following bilateral contact with the flanks, was adequate to elicit the lordosis reflex. Hair deflection alone or noxious stimulation was neither sufficient nor necessary for lordosis behavior to occur. 2. For a giv...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1979.42.1.195
更新日期:1979-01-01 00:00:00
abstract::1. Responses to pure tones were recorded from single neurons in the anteroventral cochlear nucleus (AVCN) in kittens ranging in age from 4 to 45 days. Different response properties mature at different times after birth. 2. The shapes of response areas of AVCN neurons after the 1st postnatal week resemble those recorde...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1978.41.6.1557
更新日期:1978-11-01 00:00:00
abstract::1. The alignment of the pupillary axes and of the visual axes has been measured in 23 normally reared cats ranging in age from 14 days to adulthood. 2. In agreement with a previous report, we find that pupillary divergence, as measured from photographs, tends to decrease during the first 2 mo of life. 3. The angle bet...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1978.41.4.848
更新日期:1978-07-01 00:00:00
abstract::1. In chronically prepared, freely moving rats, electrical stimulation was applied to the angular bundle, and responses were recorded extracellularly at a variety of sites in the ipsilateral hippocampal formation. At each recording site the stimulus-response relationship was tested during four different behavioral sta...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1978.41.3.716
更新日期:1978-05-01 00:00:00
abstract::1. We studied the receptive fields of 171 striate cortical neurons from 17 cats raised with binocular lid suture. Of these, 102 fields were within 10 degrees of the area centralis and the remaining 69 were at least 38 degrees from the vertical meridian. 2. Based on their different response properties, cells were divid...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1978.41.2.322
更新日期:1978-03-01 00:00:00
abstract::1. Using an optical method for measuring membrane potential, we have been able to monitor action-potential activity simultaneously in 14 neurons of the supraesophageal ganglion of the barnacle. 2. Under favorable conditions, 4-mV synaptic potentials could also be detected optically. ...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.6.1281
更新日期:1977-11-01 00:00:00
abstract::1. It has been suggested that passive diffusion is the principal mechanism of the clearance of locally elevated extracellular potassium, K+o, in the cerebral cortex. This concept was based on the assumption that elevated K+ could be modeled as a point source. In the present study, the functional role of passive diffus...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.5.1015
更新日期:1977-09-01 00:00:00
abstract::1. Electrical stimulation applied within the dorsolateral funiculus of the spinal cord of an intact, unanesthetized turtle can elicit rhythmic limb movements similar to those observed during swimming. 2. A spontaneous display of hindlimb swimming movements is not observed in adult turtles whose spinal cord is transect...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.4.768
更新日期:1977-07-01 00:00:00
abstract::1. The receptive fields of 48 specific cold units, located in the hairy and glaborous skin of fore- and hindlimbs of rhesus monkeys, were mapped and scale drawings made. Forty-five percent had single spotlike receptive fields of 1-2 mm diameter or were up to 2 mm wide and 3-5 mm long, and formed straight, crescent, or...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.2.319
更新日期:1977-03-01 00:00:00
abstract::1. Antidromic stimulation of the visual radiation of cats has been used to investigate the possibility that some of the activity in principal geniculate cells following an optic tract stimulus is antidromic. Single spikes were selected from two classes of poststimulus activity to condition the antidromic test spike--t...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.1.9
更新日期:1977-01-01 00:00:00
abstract::1. The transmission in the spinal monosynaptic pathway was studied during repetitive stimulation of a motor nerve by 10 stimuli at 2, 5, or 10 Hz in spinal cats. Initially, the amplitudes of the monosynaptic responses rapidly declined, reaching a plateau after a few stimuli. The level of the plateau was inversely rela...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1977.40.1.95
更新日期:1977-01-01 00:00:00
abstract::The activity of malic dehydrogenase, pyruvic kinase, and phosphorylase b was measured in the geniohyoid muscle of the cat after injection of 10 10 mM colchicine into the hypoglossal nerve. Experiments performed 1-60 days after the injection showed that the activity of the three enzymes gradually decreased (day 4-5), r...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1976.39.6.1236
更新日期:1976-11-01 00:00:00
abstract::1. The synaptic connections of 44 single identified muscle spindle Ia afferents and of 21 Golgi tendon organ (Ib) afferents from medial gastrocnemius (MG) were studied in 46 cats by the spike-triggered averaging of synaptic noise in 803 motoneurons of various types. 2. The well-known monosynaptic Ia excitatory connect...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1976.39.6.1375
更新日期:1976-11-01 00:00:00
abstract::1. Areas of cerebellar cortex related to saccadic eye movements were ablated in three Macaca mulatta monkeys trained to fixate visual targets. There followed a postoperative dysmetria of saccadic eye movements which appeared to be the result of an impairment specifically within the saccadic system. 2. Convergent evide...
journal_title:Journal of neurophysiology
pub_type: 杂志文章
doi:10.1152/jn.1976.39.6.1246
更新日期:1976-11-01 00:00:00