Abstract：
:We investigated the effect of foot position and foot orientation on asymmetrical body weight loading and the inter- and intra-foot coordination dynamics of standing postures. The participants were instructed to stand with the feet side-by-side and in staggered and tandem positions with the right foot oriented at different angles (30, 60 and 90°). The results showed that the participants naturally loaded more on their left foot when positioned with their right foot forward. As the orientation of the right foot was changed from 90 to 30°, they loaded a significantly large proportion of their body weight on their left foot and the degree of coordination of the 4 COP time series increased. Foot position, constrains both the area of the base of support and the loading of the feet, played an important role differentiating the contribution of each COP to the postural control system. In particular, when postural stance was challenged by the limitation of the base of support, the COPs in the unstable plane (inter-foot coordination) showed larger factor weightings. In contrast, when standing posture was not challenged by the base of support boundary, the COPs of the more loaded foot (intra-foot coordination) dominated foot coordination in postural control. These findings show that the mechanical constraints of foot position and orientation interact to channel different patterns of inter- and intra-foot coordination dynamics of standing postures.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Wang Z,Molenaar PC,Newell KMdoi
10.1007/s00221-013-3627-9subject
Has Abstractpub_date
2013-09-01 00:00:00pages
15-27issue
1eissn
0014-4819issn
1432-1106journal_volume
230pub_type
杂志文章abstract：:Weight illusions--where one object feels heavier than an identically weighted counterpart--have been the focus of many recent scientific investigations. The most famous of these illusions is the 'size-weight illusion', where a small object feels heavier than an identically weighted, but otherwise similar-looking, larg...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-014-3926-9
更新日期：2014-06-01 00:00:00
abstract：:This study examined precision-grip force applied to an instrumented test object held aloft while the weight of the object was predictably varied by transporting and placing loads (50, 100, or 200 g) atop the test object. Transport of the loads was performed either by the subject or the experimenter. Grip force was exa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000337
更新日期：2000-06-01 00:00:00
abstract：:Previous studies have indicated that the geniohyoid (GH) muscle is innervated by efferent axons from both the hypoglossal nerve (CN XII) and ansa cervicalis. To clarify the physiological significance of this dual innervation of the GH muscle, we examined properties of efferent innervations in rat GH muscle using elect...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1529-y
更新日期：2003-12-01 00:00:00
abstract：:The output from a motor nucleus is determined by the synaptic input to the motor neurons and their intrinsic properties. Here, we explore whether the source of synaptic inputs to the motor neurons (cats) and the age or post-stroke conditions (humans) may change the recruitment gain of the motor neuron pool. In cats, t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05628-6
更新日期：2019-11-01 00:00:00
abstract：:Both vestibular and neck proprioceptive inputs contribute towards maintaining a walking trajectory. We investigated how aging alters neck proprioceptive and vestibular interaction for preserving equilibrium and spatial orientation during locomotion. Young and healthy elderly were exposed to two sensory manipulations a...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-005-0182-z
更新日期：2005-12-01 00:00:00
abstract：:The photothrombotic ring stroke model with sustained underperfusion followed by late spontaneous reperfusion (Gu et al. 1999) was employed to study its morphological consequences. The exposed crania of adult male Wistar rats were subjected to a ring-shaped laser irradiation beam simultaneously with intravenous erythro...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050672
更新日期：1999-03-01 00:00:00
abstract：:The latency of eye movements is influenced by the fixation task; when the fixation stimulus is switched off before the target presentation (gap paradigm) the latency becomes short and express movements occur. In contrast, when the fixation stimulus remains on when the target appears (overlap paradigm), eye movement la...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-2214-0
更新日期：2005-07-01 00:00:00
abstract：:People are more sensitive to detecting asynchrony between a self-generated movement of the hand and delayed visual feedback when what they see matches the expected "self" perspective rather than an "other" perspective (Hoover and Harris in Exp Brain Res 222:389-397, 2012). We take this as corresponding to the ability ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-4181-9
更新日期：2015-04-01 00:00:00
abstract：:Several studies have shown that people can catch a ball even if it is visible only during part of its flight. Here, we examine how well they can do so. We measured the movements of a ball and of the hands of both the thrower and the catcher during one-handed underarm throwing and catching. The catcher's sight was occl...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2421-1
更新日期：2010-10-01 00:00:00
abstract：:In order to see whether septal neurones are connected to the hypothalamic neurones secreting vasopressin or oxytocin, neurones in different regions of the septum were recorded during electrical stimulation of the supraoptic nucleus. The position of the stimulating electrode within the latter was verified using lactati...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237493
更新日期：1981-01-01 00:00:00
abstract：:We used near-infrared spectroscopy to examine dorsolateral prefrontal cortex (DLPFC) activation over time in 10 children with or at-risk-for developmental coordination disorder (DCD) and 11 typically developing children (ages 8-12) during tasks involving executive processing. The groups performed with similar accuracy...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-018-5358-4
更新日期：2018-11-01 00:00:00
abstract：:Evidence suggests that there are positive effects of exercise on learning and memory. Moreover, some studies have demonstrated that forced exercise plays the role of a stressor. This study was aimed at investigating the effects of different timing of exercise and exercise withdrawal on memory, and serum and hippocampa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4349-y
更新日期：2015-10-01 00:00:00
abstract：:A recent study by our group showed that the scaling of reach trajectories to target size is independent of conscious visual awareness of that intrinsic target property (Binsted et al. in Proc Natl Acad Sci USA 104:12669-12672, 2007). The present investigation sought to extend previous work and determine whether uncons...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1385-x
更新日期：2008-07-01 00:00:00
abstract：:Parkinsonian rigidity is characterized by an increased resistance of a joint to externally imposed motion that remains uniform with changing joint angle. Two candidate mechanisms are proposed for the uniformity of rigidity, involving neural-mediated excitation of shortening muscles, i.e., shortening reaction (SR), or ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2594-2
更新日期：2011-04-01 00:00:00
abstract：:The purpose of this study was to investigate the temporal relationship between presaccadic neuronal discharges in the frontal eye fields (FEF) and supplementary eye fields (SEF) and the initiation of saccadic eye movements in macaque. We utilized an analytical technique that could reliably identify periods of neuronal...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00241967
更新日期：1995-01-01 00:00:00
abstract：:In searching for regulatory mechanisms involved in the cell-specific neuronal and glial transcription a cell-free transcriptional system has been developed using neuronal and glial rat brain chromatin and partially purified neuronal and glial nuclear rat brain RNA polymerases. Both free and chromatin-bound (engaged) n...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237292
更新日期：1978-03-15 00:00:00
abstract：:The response characteristics of mechanoreceptive neurons (RA, SA, and PC) innervating the foot pad of cat were determined in the cuneate nucleus. The mechanical stimuli were single sinusoidal pulses of varying frequency (20, 60, 150, and 240 Hz), and vibratory trains of varying frequency (80 and 240 Hz) and duration (...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236027
更新日期：1986-01-01 00:00:00
abstract：:The spatial separation of the eyes in animals with overlapping visual fields means that parts of a three dimensional object project to slightly disparate retinal points in each eye. This disparity, once interpreted by the brain, is thought to be a sufficient condition for stereoperception. In the present experiment, s...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239515
更新日期：1986-01-01 00:00:00
abstract：:Inhibition of return (IOR) is thought to reflect a bias against returning attention to previously attended locations. According to this view, IOR should occur only if attention is withdrawn from the target location prior to target appearance. In the present study, endogenous attention and exogenous cueing were manipul...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-004-1963-5
更新日期：2004-12-01 00:00:00
abstract：:The projection from the nucleus prepositus hypoglossi (PH) to the superior colliculus (SC) has been proposed to provide a feedback control of collicular saccadic activities. The present study aimed to identify the functional properties of PH neurones projecting to the SC relative to eye movement parameters. Preposito-...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229141
更新日期：1996-08-01 00:00:00
abstract：:Double-labeling combined with elution-restaining immunofluorescence techniques were used to analyze the extent of coexistence among the peptides cholecystokinin (CCK), peptide histidine-isoleucine (PHI)/vasoactive intestinal polypeptide (VIP), substance P and the catecholamine-synthesizing enzyme tyrosine hydroxylase ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00250598
更新日期：1988-01-01 00:00:00
abstract：:To investigate self-prioritization independently of stimulus familiarity, Sui et al. (J Exp Psychol Hum Percept Perform 38:1105-1117, 2012. doi: 10.1037/a0029792 ) introduced a new paradigm in which different geometric shapes are arbitrarily associated with self-relevant (e.g., "I") and neutral labels (e.g., "stranger...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4616-6
更新日期：2016-08-01 00:00:00
abstract：:The superior colliculus was bilaterally or unilaterally ablated at different early postnatal ages in rats. When adult, each rat received a unilateral eye injection of Horseradish peroxidase to reveal the crossed and uncrossed retinal terminal fields within the dorsal lateral geniculate nucleus. Collicular ablation in ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230917
更新日期：1985-01-01 00:00:00
abstract：:Gamma oscillations of 30-70 Hz in local electroencephalograms (EEGs) were observed in primary visual cortex (V1) of monkeys when they viewed coloured stimuli under conditions which were not part of a training paradigm. No oscillatory modulations were detected in simultaneously recorded spike trains, although the latte...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210100770
更新日期：2001-07-01 00:00:00
abstract：:Motoneurones innervating the retractor bulbi muscle in the cat have been identified by retrograde labelling with horseradish peroxidase, by intracellular recording and by intracellular staining with horseradish peroxidase. Their somata are found in an accessory abducens nucleus, analogous to that described in some oth...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239148
更新日期：1979-02-15 00:00:00
abstract：:Nine participants performed a reciprocal precision aiming task under different experimental conditions. Due to the anisotropy of the work space, varying the direction of motion (from 0 degrees to 315 degrees in steps of 45 degrees ) allowed exploration of the effects of biomechanical constraints that were found to aff...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/s00221-004-1964-4
更新日期：2004-12-01 00:00:00
abstract：:Single unit recordings were carried out in the reticularis thalamic nucleus (RT) and the ventral lateral geniculate body (LGv) of chronically prepared alert cats under sinusoidal vestibular stimulation in the horizontal plane. Optokinetic stimulation was also used. Of the 57 recorded neurons, 12 present vestibular mod...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237394
更新日期：1978-05-12 00:00:00
abstract：:We examined the influence of acetylcholine (ACh) on the visual response properties of lagged cells in the dorsal lateral geniculate nucleus of anaesthetised cats. By means of electrophysiological techniques, the response of single cells was recorded before, during and after ionophoretic application of ACh. ACh evoked ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227137
更新日期：1993-01-01 00:00:00
abstract：:The development of visual cell properties was studied in cortical Area 18 (A18) of normal (NRs) and dark-reared kittens (DRs), from 2 weeks of age to adulthood. In addition to the orientation selective (S) and non-selective (NS) cells, we describe a new type of non-selective cell with a peripheral zone (NSp), which co...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247518
更新日期：1988-01-01 00:00:00
abstract：:The Stroop test enables interference between color naming and reading to be studied. Protopapas et al. (2007) reported more errors in an interference task and longer reaction times in 12.5-year-old dyslexics; also more Stroop interference with lower reading skills. The present study uses a version of the Stroop with f...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2247-x
更新日期：2010-06-01 00:00:00
