Abstract：
:In the present study pineal glands of rats aged 69-71 days were studied in vivo and in vitro with respect to day/night changes of "synaptic" ribbons and spherules. It was found that ribbons outnumber spherules by a factor of 3. In vivo, both ribbons and spherules show a roughly 3-fold increase in number at 1 a.m. when compared to 1 p.m. Up to 39 h in vitro, the two structures in question did not reveal day/night differences in amount, suggesting that diurnal rhythmicity of the gland did apparently not persist in organ culture. After 3 h in organ culture, the spherules, but not the ribbons, showed a striking increase in number, showing that ribbons and spherules may be governed by different mechanisms.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Karasek M,Vollrath Ldoi
10.1007/BF00237178subject
Has Abstractpub_date
1982-01-01 00:00:00pages
205-8issue
2eissn
0014-4819issn
1432-1106journal_volume
46pub_type
杂志文章abstract：:After injection of S35-methionine into cervical and lumbar dorsal root ganglia in turtle, a primary afferent projection was demonstrated on to the cerebellum. Few, but consistent patches of silver grains were found within the granular layer suggesting mossy fiber terminations. The projection was mainly ipsilateral and...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF01208609
更新日期：1982-01-01 00:00:00
abstract：:Optimality criteria underlying organization of arm movements are often validated by testing their ability to adequately predict hand trajectories. However, kinematic redundancy of the arm allows production of the same hand trajectory through different joint coordination patterns. We therefore consider movement optimal...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-016-4610-z
更新日期：2016-06-01 00:00:00
abstract：:This study explored the directional specificity of fear of falling (FoF) effects on the stabilizing function of anticipatory postural adjustments (APA). Participants (N = 71) performed a series of lateral leg raises from an elevated surface in three conditions: in the "Control condition", participants stood at the mid...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4471-x
更新日期：2016-03-01 00:00:00
abstract：:The oculomotor performance of 11 monkeys, who had various degrees of cerebellar ablation shortly after birth, is described in this study. Detailed numerical results were obtained on three of these adult macaques after extensive training of specific pursuit eye movements and fixation. The vestibular nuclei were kept in...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238774
更新日期：1983-01-01 00:00:00
abstract：:The cerebellum is known to participate in visually guided eye movements. The cerebellar uvula receives projections from pontine nuclei that have been implicated in visual motion processing and the generation of smooth pursuit. Single-unit and lesion studies were conducted to determine how the uvula might further proce...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00241368
更新日期：1996-06-01 00:00:00
abstract：:Intermodal attention (IA) is assumed to allocate limited neural processing resources to input from one specific sensory modality. We investigated effects of sustained IA on the amplitude of a 40-Hz auditory (ASSR) and a 4.3-Hz visual steady-state response (VSSR). To this end, we concurrently presented amplitude-modula...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2667-2
更新日期：2011-09-01 00:00:00
abstract：:The evoked expression of the immediate early gene-encoded proteins c-Fos and Krox-24 was used to study activation of hindbrain neurons as a function of the development of cyclophosphamide (CP) cystitis in behaving rats. CP-injected animals received a single dose of 100 mg/kg i.p. under transient volatile anesthesia an...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227263
更新日期：1996-03-01 00:00:00
abstract：:The cortical anatomical substrates by which visual information may influence the frontal areas controlling reaching movements to visual targets were studied in monkeys. A reaching task was employed to characterize the arm-related regions of the frontal lobe. Injections of retrograde tracers into these physiologically ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228707
更新日期：1993-01-01 00:00:00
abstract：:Although postural control requires the integration of different sensory cues, little is known about the role of attentional artifacts on the individual's ability to properly respond to postural challenges. This study investigated the effects of concomitant tasks (cognitive and postural) on the relationship between vis...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4762-x
更新日期：2016-12-01 00:00:00
abstract：:Previous studies have used a secondary probe reaction time (RT) task to assess attentional demands of a primary task. The current study used a startling acoustic stimulus (SAS) in a probe RT paradigm to test the hypothesis that attentional resources would be directly related to limitations in response preparation. Par...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4340-7
更新日期：2015-09-01 00:00:00
abstract：:Anatomical studies in several species have demonstrated a pallidostriatal pathway. We employed electrophysiological and anatomical methods to distinguish the neurones of this pathway from the two pallidocortical groups reported in the rat. Injection of fluorescent retrograde tracers, combined with immunohistochemistry...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248863
更新日期：1989-01-01 00:00:00
abstract：:A double-labelling anatomical strategy employing horseradish peroxidase and tritiated, enzymatically inactive horseradish peroxidase allowed simultaneous visualization of corticospinal neurones and cortical neurones projecting to the dorsal column nuclei in cats. By this approach it is shown that although most cortica...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238364
更新日期：1981-01-01 00:00:00
abstract：:This study examined the variability in movement end points in a task in which human subjects reached to targets in different locations on a horizontal surface. The primary purpose was to determine whether patterns in the variable errors would reveal the nature and origin of the coordinate system in which the movements...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/BF00241415
更新日期：1994-01-01 00:00:00
abstract：:There is evidence that men experience more sexual arousal than women but also that women in mid-luteal phase experience more sexual arousal than women outside this phase. Recently, a few functional brain imaging studies have tackled the issue of gender differences as pertaining to reactions to erotica. The question of...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0429-3
更新日期：2006-09-01 00:00:00
abstract：:Growing evidence suggests that blind subjects outperform the sighted on certain tactile discrimination tasks depending on cutaneous inputs. The purpose of this study was to compare the performance of blind (n = 14) and sighted (n = 15) subjects in a haptic angle discrimination task, depending on both cutaneous and pro...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1327-7
更新日期：2008-06-01 00:00:00
abstract：:Research on animal models as well as human subjects has demonstrated that the vestibular system contributes to regulating the distribution of blood in the body through effects on the sympathetic nervous system. Elimination of vestibular inputs results in increased blood flow to the hindlimbs during vestibular stimulat...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2550-1
更新日期：2011-05-01 00:00:00
abstract：:The amygdala has been demonstrated to contribute to pain-related behavior and food preference. Here, the effect of pain on food preference and food-matched visual-cue memory, in the presence or absence of a basolateral amygdala (BLA) lesion, has been evaluated using a novel innovative apparatus and protocol. Forty adu...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05961-1
更新日期：2020-10-26 00:00:00
abstract：:In recordings from two awake, behaving macaque monkeys we found that neurons in the crown of the prelunate gyrus differed in their responsiveness to simple visual stimuli. Neurons in the posterior part of the gyrus (area V4) responded strongly to stationary or moving bars, while neurons in the anterior part (area V4A)...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1112-y
更新日期：2002-07-01 00:00:00
abstract：:Percutaneous electrical stimulation of the motor cortex was used to activate rapidly conducting corticofugal pathways to human abdominal muscles. Following cortical stimulation the response latencies for the abdominal muscles were similar to those for limb muscles which are a similar distance from the motor cortex. Co...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228901
更新日期：1989-01-01 00:00:00
abstract：:When walking with a hand-held object, grip force is coupled in an anticipatory manner to changes in inertial force resulting from the accelerations and decelerations of gait. However, it is not known how grip and inertial forces are organized at the onset of gait, and if the two forces are coupled in the early phases ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1476-8
更新日期：2008-09-01 00:00:00
abstract：:Single-neuron activities were recorded in the hindlimb region of the primary somatosensory cortex and part of area 5 in awake Japanese monkeys. A total of 1050 units were isolated from five hemispheres of four animals. Receptive fields (RFs) and submodalities were identified for 90% of isolated neurons in areas 3a and...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000464
更新日期：2000-09-01 00:00:00
abstract：:A magnetic stimulus applied to the human scalp over the motor cortex causes a short latency contraction of contralateral limb muscles. This is presumed to result from the indirect excitation of corticospinal neurons with monosynaptic connections to motoneurons. The excitability of these cortical neurons can be estimat...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247369
更新日期：1989-01-01 00:00:00
abstract：:In sensory saltation, first reported by Geldard and Sherrick (Science 178:178-179, 1972), a stimulus is displaced towards a second one following closely in time and space as a function of the delay between the stimuli. The distance between stimulus locations is restricted by the extension of sensory fields in the prim...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0190-z
更新日期：2006-03-01 00:00:00
abstract：:The content of calcitonin gene-related peptide-like immunoreactivity (CGRP-LI) in motoneurons was studied in four motor pools supplying muscles in the rat hind limb subserving different types of motor activity. The motor pools were identified by retrograde labeling with horseradish peroxidase or fluorophore-conjugated...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227109
更新日期：1993-01-01 00:00:00
abstract：:We investigated the association between the degree of lesion overlap with the corticospinal tract and walking performance before and after 4-weeks of partial body weight support (PBWS) treadmill training in 18 individuals (ten male, eight female) with a mean age 59 +/- 13 years (mean +/- SD), range 32-74 years, who we...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-1237-0
更新日期：2008-03-01 00:00:00
abstract：:While diverging efficacy and inter-individual response variability have repeatedly been reported for paired-associative stimulation (PAS), approaches to overcome these issues are yet lacking. Hence, the aim of the present study was to determine whether response variability could be reduced through the application of a...
journal_title：Experimental brain research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00221-019-05542-x
更新日期：2019-07-01 00:00:00
abstract：:Successive motor unit (MU) twitches often do not sum linearly. Also, muscle spindle (MS) afferents may react nonlinearly to MU contractions occurring at short intervals. Little data is presently available on the interactions between two (or more) MUs regarding their effects on tension output and MS responses. We have ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237486
更新日期：1986-01-01 00:00:00
abstract：:Successfully picking up and handling objects requires taking into account their physical properties (e.g., material) and position relative to the body. Such features are often inferred by sight, but it remains unclear to what extent observers vary their actions depending on the perceived properties. To investigate thi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4631-7
更新日期：2016-08-01 00:00:00
abstract：:Mental imagery is considered to be important for normal conscious experience. It is most frequently investigated in the visual, auditory and motor domain (imagination of movement), while the studies on tactile imagery (imagination of touch) are scarce. The current study investigated the effect of tactile and auditory ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3020-0
更新日期：2012-05-01 00:00:00
abstract：:Primates can gradually increase or decrease H-reflex amplitude in one leg when reward depends on that amplitude. The magnitude of change varies greatly from animal to animal. This study sought to define the factors that control this magnitude. It evaluated the influence of animal age, muscle size (absolute and relativ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228815
更新日期：1993-01-01 00:00:00
