Control of manipulative forces during unimanual and bimanual tasks in patients with Huntington's disease.

abstract：:The human soleus H-reflex is commonly tested as an indicator of the reflex excitability of the calf muscles with infrequent stimuli to a subject seated and at rest. However, the reflex varies widely with the level of voluntary contraction and with the time history of stimulation. We studied two aspects of this variati...

journal_title：Experimental brain research

authors： Stein RB,Estabrooks KL,McGie S,Roth MJ,Jones KE

更新日期：2007-09-01 00:00:00

abstract：:Retinal ganglion cells of adult cats have the potential to regenerate their axons into autografted peripheral nerve. Two months after transplantation of the sciatic nerve to the axotomized optic stump, regenerated axons were labeled anterogradely with biocytin, and myelin formation by Schwann cells was examined electr...

journal_title：Experimental brain research

authors： Watanabe M,Sawai H,Fukuda Y

更新日期：1994-01-01 00:00:00

abstract：:The effects of L-DOPA, naloxone, and the opioids (D-Ala2,N-Me-Phe4,Gly5-ol)-enkephalin (DAGO) and D-Ser2-Leu-enkephalin-Thr6 (DSLET) on spinal motor rhythm generation were compared in anemically decapitated high spinal cats. After premedication with nialamide, DOPA caused the well-known, slow rhythmic motor activity w...

journal_title：Experimental brain research

authors： Schomburg ED,Steffens H

更新日期：1995-01-01 00:00:00

abstract：:Pain catastrophizing has been associated with phantom limb pain, but so far the cortical processes and the brain regions involved in this relationship have not been investigated. It was therefore tested whether catastrophizing was related to (1) spontaneous pain, (2) somatosensory activity and (3) cortical responses i...

journal_title：Experimental brain research

authors： Vase L,Egsgaard LL,Nikolajsen L,Svensson P,Jensen TS,Arendt-Nielsen L

更新日期：2012-05-01 00:00:00

abstract：:The information transmitted (Ti) by the direction of two-dimensional (2-D) isometric forces at different stereoscopic depths was studied in 50 naive human subjects using an isometric manipulandum and random dot stereograms generated in a color display (Massey et al. 1988). Subjects viewed the display through appropria...

journal_title：Experimental brain research

authors： Massey JT,Drake RA,Lurito JT,Georgopoulos AP

更新日期：1991-01-01 00:00:00

abstract：:Few investigations have examined mental workload during motor practice or learning in a context of team dynamics. This study examines the underlying cognitive-motor processes of motor practice by assessing the changes in motor performance and mental workload during practice of reaching movements. Individuals moved a r...

journal_title：Experimental brain research

authors： Shuggi IM,Shewokis PA,Herrmann JW,Gentili RJ

更新日期：2018-02-01 00:00:00

abstract：:We have previously shown, using a local inactivation technique, that layer VI provides a facilitatory input to the majority of hypercomplex cells located in layer IV above, and hence to layers II/III, which in many cases enhances length selectivity. However, many cells in these layers are not tuned for stimulus length...

journal_title：Experimental brain research

authors： Grieve KL,Sillito AM

更新日期：1995-01-01 00:00:00

abstract：:Impaired plantar flexor muscle activation during push-off in late stance contributes importantly to reduced gait ability in adults with cerebral palsy (CP). Here we used low-intensity transcranial magnetic stimulation (TMS) to suppress soleus EMG activity during push-off as an estimate of corticospinal drive in CP adu...

journal_title：Experimental brain research

authors： Frisk RF,Lorentzen J,Nielsen JB

更新日期：2019-06-01 00:00:00

abstract：:The retinal positions of objects in the world change with each eye movement, but we seem to have little trouble keeping track of spatial information from one fixation to the next. We examined the role of attention in trans-saccadic localization by asking participants to localize targets while performing an attentional...

journal_title：Experimental brain research

authors： MacInnes WJ,Hunt AR

更新日期：2014-12-01 00:00:00

abstract：:In order to study neuronal information transfer from the striatum to the globus pallidus (GP) during voluntary movement, we recorded activity of electrophysiologically identified projection neurons in the putamen to the GP while the monkey was performing learned movement tasks. Two categories of putamen neurons were r...

journal_title：Experimental brain research

authors： Kimura M,Kato M,Shimazaki H

更新日期：1990-01-01 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

authors： Gu WG,Brännström T,Jiang W,Wester P

更新日期：1999-03-01 00:00:00

abstract：:We investigated whether the order of gaze shifts affected spatial and temporal aspects of discrete bimanual pointing movements. Ten male participants concurrently executed bimanual pointing movements as quickly and accurately as possible to left and right lateral targets presented with the same and different amplitude...

journal_title：Experimental brain research

authors： Kokubu M,Ando S,Oda S

更新日期：2009-10-01 00:00:00

abstract：:Two experiments investigated the contribution of space- and object-based coordinates to previously reported leftward perceptual biases (pseudoneglect) at various locations across visual space. Neurologically intact participants (n = 34 and 27) made luminance discriminations between two left/right mirror-reversed lumin...

journal_title：Experimental brain research

authors： Orr CA,Nicholls ME

更新日期：2005-04-01 00:00:00

abstract：:Three experiments examined interactions between posture control in upright stance and a concurrent location memory task. Healthy young participants stood upright and memorized the locations of dots presented on a computer screen. In the retrieval phase, they indicated whether arrows presented on the screen would pass ...

journal_title：Experimental brain research

authors： Riley MA,Mitra S,Saunders N,Kiefer AW,Wallot S

更新日期：2012-03-01 00:00:00

abstract：:Affordance theory and behavioural dynamics have been used as theoretical constructs to explain how individuals interact with the environment in order to avoid obstacles. Features of obstacle distance and multiple obstacle avoidance have been discussed in unique studies, yet the interactions of these environmental feat...

journal_title：Experimental brain research

authors： Baker CS,Cinelli ME

更新日期：2017-02-01 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

authors： Sugiyama Y,Suzuki T,Yates BJ

更新日期：2011-05-01 00:00:00

abstract：:The total number of granule cells in the dentate gyrus was estimated in 17 male rats, four each aged 30, 120, and 200 days, and five aged 365 days. There is a substantial 35-43% linear increase between 1 month and 1 year. Two parameters of the granular layer are involved in the numerical change. First, total granular ...

journal_title：Experimental brain research

authors： Bayer SA

更新日期：1982-01-01 00:00:00

abstract：:Limb proprioception is an awareness by the central nervous system (CNS) of the location of a limb in three-dimensional space and is essential for movement and postural control. The CNS uses the position of the head and neck when interpreting the position of the upper limb, and altered input from neck muscles may affec...

journal_title：Experimental brain research

authors： Zabihhosseinian M,Holmes MW,Murphy B

更新日期：2015-05-01 00:00:00

abstract：:Haptic guidance has been shown to have both facilitatory and interfering effects on motor learning. Interfering effects have been hypothesized to result from the particular dynamic environment, which supports a passive role of the learner, and they should be attenuated by fading guidance. Facilitatory effects, in part...

journal_title：Experimental brain research

authors： Heuer H,Lüttgen J

更新日期：2014-07-01 00:00:00

abstract：:The blood-brain barrier (BBB) arises from epithelial-like tight junctions that virtually cement adjoining capillary endothelium together in the brain microvasculature. Several experimental manipulations have been shown able to increase the permeability of brain capillaries, by altering endothelial cell membrane integr...

journal_title：Experimental brain research

authors： Saija A,Princi P,Trombetta D,Lanza M,De Pasquale A

更新日期：1997-07-01 00:00:00

abstract：:Observation of hand movements has been repeatedly demonstrated to increase the excitability of the motor cortical representation of the hand. Little attention, however, has been devoted to its effect on somatosensory processing. Movement execution is well known to decrease somatosensory cortical excitability, a phenom...

journal_title：Experimental brain research

authors： Voisin JI,Rodrigues EC,Hétu S,Jackson PL,Vargas CD,Malouin F,Chapman CE,Mercier C

更新日期：2011-01-01 00:00:00

abstract：:We recently described an area in the ferret posterior suprasylvian (PSS) cortex characterized by a high proportion of direction selective neurons. To answer the question whether area PSS subserves functions similar to cat posteromediolateral suprasylvian area (PMLS) and monkey medial temporal area (MT) we investigated...

journal_title：Experimental brain research

authors： Hupfeld D,Distler C,Hoffmann KP

更新日期：2007-10-01 00:00:00

abstract：:We measured the amount of information transmitted by the direction of two-dimensional (2-D) arm movements of human subjects, and by neuronal populations in the motor cortex and area 5 of monkeys. We also compared the information transmitted by a motor cortical population when the predictability of the direction of mov...

journal_title：Experimental brain research

authors： Georgopoulos AP,Massey JT

更新日期：1988-01-01 00:00:00

abstract：:Studies on motor learning typically present a constant adaptation stimulus, corresponding to the desired final adaptive state. Studies of the auditory and optokinetic systems provide compelling evidence that neural plasticity is enhanced when the error signal driving adaptation is instead adjusted gradually throughout...

journal_title：Experimental brain research

authors： Schubert MC,Della Santina CC,Shelhamer M

更新日期：2008-12-01 00:00:00

abstract：:Vection is the illusion of self-motion in the absence of real physical movement. The aim of the present study was to analyze how multisensory inputs (visual and auditory) contribute to the perception of vection. Participants were seated in a stationary position in front of a large, curved projection display and were e...

journal_title：Experimental brain research

authors： Keshavarz B,Hettinger LJ,Vena D,Campos JL

更新日期：2014-03-01 00:00:00

abstract：:The phenotypic effect of the weaver mutation in the ventral midbrain of homozygous mutants is associated with the progressive loss of dopaminergic neurons. To discover whether the number of mesencephalic dopaminergic cells is altered in weaver heterozygotes (wv/+), we studied mice between 20 and 365 days of age. We co...

journal_title：Experimental brain research

authors： Verina T,Norton JA,Sorbel JJ,Triarhou LC,Laferty D,Richter JA,Simon JR,Ghetti B

更新日期：1997-01-01 00:00:00

abstract：:The mechanisms underlying stress-induced hyperalgesia (SIH) remain poorly understood. Recent findings have provided strong evidence indicating that SIH could be related, at least in part, to alterations in spinal cord GABA activity. In the present study, we first investigated how acute restraint stress impacted pain r...

journal_title：Experimental brain research

authors： Ma X,Bao W,Wang X,Wang Z,Liu Q,Yao Z,Zhang D,Jiang H,Cui S

更新日期：2014-11-01 00:00:00

abstract：:Supernumerary phantom limb (SPL) designates the experience of an illusory additional limb occurring after brain damage. Functional neuroimaging during SPL movements documented increased response in the ipsilesional supplementary motor area (SMA), premotor cortex (PMC), thalamus and caudate. This suggested that motor c...

journal_title：Experimental brain research

authors： Bourlon C,Urbanski M,Quentin R,Duret C,Bardinet E,Bartolomeo P,Bourgeois A

更新日期：2017-10-01 00:00:00

abstract：:Single unit activity was recorded from tuberoinfundibular neurones in urethane-anaesthetized pro-oestrous rats. Responses following single shock (0.2 Hz) stimulation of the preoptic area/anterior hypothalamus (PO/AH) or nucleus accumbens (ACB) were recorded and computed for 137 single units. More cells were shown, by ...

journal_title：Experimental brain research

authors： Saphier DJ

更新日期：1985-01-01 00:00:00

abstract：:Many vertebrates generate blinks as a component of saccadic gaze shifts. We investigated the nature of this linkage between saccades and blinking in normal humans. Activation of the orbicularis oculi, the lid closing muscle, EMG occurred with 97% of saccadic gaze shifts larger than 33 degrees. The blinks typically beg...

journal_title：Experimental brain research

authors： Evinger C,Manning KA,Pellegrini JJ,Basso MA,Powers AS,Sibony PA

更新日期：1994-01-01 00:00:00