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 this, we asked participants to grasp, lift and carry cylinders to a goal location with a precision grip. The cylinders were made of four different materials (Styrofoam, wood, brass and an additional brass cylinder covered with Vaseline) and were presented at six different orientations with respect to the participant (0°, 30°, 60°, 90°, 120°, 150°). Analysis of their grasping kinematics revealed differences in timing and spatial modulation at all stages of the movement that depended on both material and orientation. Object orientation affected the spatial configuration of index finger and thumb during the grasp, but also the timing of handling and transport duration. Material affected the choice of local grasp points and the duration of the movement from the first visual input until release of the object. We find that conditions that make grasping more difficult (orientation with the base pointing toward the participant, high weight and low surface friction) lead to longer durations of individual movement segments and a more careful placement of the fingers on the object.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Paulun VC,Gegenfurtner KR,Goodale MA,Fleming RWdoi
10.1007/s00221-016-4631-7subject
Has Abstractpub_date
2016-08-01 00:00:00pages
2253-65issue
8eissn
0014-4819issn
1432-1106pii
10.1007/s00221-016-4631-7journal_volume
234pub_type
杂志文章abstract::The present study examined the dopaminergic innervation of the rat globus pallidus by in vivo microdialysis and immunohistochemistry in more detail. Using tyrosine hydroxylase immunohistochemistry, two classes of dopaminergic fibers were distinguished morphologically in the globus pallidus. Unilateral infusion of 6-hy...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-003-1638-7
更新日期:2004-01-01 00:00:00
abstract::Lengthening and shortening contractions are the fundamental patterns of muscle activation underlying various movements. It is still unknown whether or not there is a muscle-specific difference in such a fundamental pattern of muscle activation. The purpose of this study was, therefore, to investigate whether or not th...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-006-0743-9
更新日期:2007-04-01 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
pub_type: 杂志文章
doi:10.1007/s00221-019-05520-3
更新日期:2019-06-01 00:00:00
abstract::The cerebellar projection from the facial and motor trigeminal nuclei was studied in the cat by means of retrograde axonal transport of wheat germ agglutinin-horseradish peroxidase and fluorescent tracers. The feline facial nucleus was cytoarchitectonically subdivided into ventromedial, ventrolateral, lateral, dorsal,...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00247935
更新日期:1989-01-01 00:00:00
abstract::Unitary discharges of the lateral geniculate nucleus (LGN) were analyzed in anesthetized and paralyzed rats after inactivation of visual cortical areas (VC) by cryoblockade or by depositing a cotton wick soaked in KCl (3 M). The receptive fields were mapped prior to and following the interruption of the cortico-genicu...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00238152
更新日期:1984-01-01 00:00:00
abstract::Two components of long-term potentiation (LTP) are distinguished with extracellular recording electrodes: a synaptic and an EPSP-Spike (E-S) component. The latter consists of the enhancement produced in the population spike amplitude in excess of that predicted by EPSP potentiation alone. The experiments carried out i...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00229331
更新日期:1990-01-01 00:00:00
abstract::Saccadic latency is composed of separate sensory and motor processing delays. Therefore, any alteration in the sensory processing should effect the saccadic latency. Because the highest density of benzodiazepine (Bz) binding sites is located in cerebral cortex, sensory processing of stimuli in this cortical area is ex...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-005-2235-8
更新日期:2005-05-01 00:00:00
abstract::The purpose of this study was to investigate the time-course of corticospinal excitability during reaction time (RT), and compare the excitability when a precue provided information regarding both the direction and extent of the upcoming movement ('Full' condition), specified the direction of the upcoming movement onl...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-003-1772-2
更新日期:2004-05-01 00:00:00
abstract::The synapsins are presynaptic membrane-associated proteins involved in neurotransmitter release. They are differentially expressed in tissues and cells of the central and peripheral nervous system. In vestibular end organs of mammals, synapsin I-like immunoreactivity has been reported in efferent and afferent terminal...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-004-2194-5
更新日期:2005-04-01 00:00:00
abstract::Electrical activity of neurons in rat hypothalamic ventromedial nucleus was recorded in tissue slices, to investigate central neural mechanisms underlying reduction of food intake caused by TRH and its metabolite, cyclo(His-Pro) [cHP]. Application of TRH had two actions: stimulation of neuronal activity, which was des...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00269457
更新日期:1987-01-01 00:00:00
abstract::We recently demonstrated the existence of neurogenesis in the striatum of adult monkeys, but the number of striatal neurons generated under normal conditions was too small to establish their chemical phenotype. We therefore used brain-derived neurotrophic factor (BDNF), which promotes neuronal differentiation and surv...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-005-0233-5
更新日期:2006-04-01 00:00:00
abstract::Unilateral isometric muscle contractions increase motor-evoked potentials (MEPs) produced by transcranial magnetic stimulation not only in the contracting muscle but also in the resting contralateral homologous muscle. Corticospinal excitability in the M1 contralateral to the contracting muscle changes depending on th...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-010-2397-x
更新日期:2010-09-01 00:00:00
abstract::This paper investigates how the efficiency and robustness of a skilled rhythmic task compete against each other in the control of a bimanual movement. Human subjects juggled a puck in 2D through impacts with two metallic arms, requiring rhythmic bimanual actuation. The arms kinematics were only constrained by the posi...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-008-1297-9
更新日期:2008-05-01 00:00:00
abstract::Empathy, i.e., the ability to perceive and share another person's affective state, is associated with activity in a complex neural network, including the anterior insula, the anterior and mid-cingulate cortex, and the lateral prefrontal cortex. Here, we were interested in the question how facial emotions influence the...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-016-4731-4
更新日期:2016-11-01 00:00:00
abstract::Humans use a specific steering synergy, where the eyes and head lead rotation to the new direction, when executing a turn or change in direction. Increasing evidence suggests that eye movement is critical for turning control and that when the eyes are constrained, or participants have difficulties making eye movements...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-013-3466-8
更新日期:2013-05-01 00:00:00
abstract::Sources of primary afferent depolarization (PAD) of skin afferents in the sural (Sur) nerve and of group-II muscle afferents in the posterior biceps and semitendinosus (PBST) nerve were compared at several sites, about 2 mm apart, within the L7-S2 segments in order to define areas of projection of sacral interneurons ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s002210000429
更新日期:2000-08-01 00:00:00
abstract::For an understanding of how various degrees of altered use (training, disuse) affect the properties of skeletal muscles, it is important to know how much they are used normally. The main aim of the present project was to produce such background knowledge for hindlimb muscles of the cat. In four adult female cats, each...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/pl00005701
更新日期:1997-06-01 00:00:00
abstract::Cells in cat's area 17 respond optimally if elongated contrasts are presented at a certain angle or orientation with respect to the retina, or to the visual field, respectively (Hubel and Wiesel, 1962). The preferred orientation and the range of orientation sensitivity of cells in close proximity to one another have b...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00234062
更新日期:1975-12-22 00:00:00
abstract::The properties of adaptation within the locomotor and balance control systems directed towards improving one's recovery strategy for fall prevention are not well understood. The purpose of this study was to examine adaptive control of gait stability to repeated slip exposure leading to a reduction in backward loss of ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-005-0189-5
更新日期:2006-03-01 00:00:00
abstract::It has been suggested that the deficit in understanding others' intention in autism depends on a malfunctioning of the mirror system. This malfunction could be due either to a deficit of the basic mirror mechanism or to a disorganization of chained action organization on which the mirror understanding of others' inten...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-008-1578-3
更新日期:2009-01-01 00:00:00
abstract::The possibility of a cerebellar linkage, via the thalamus with medial area 6 of the cerebral cortex was further explored in the present experiments (cf. preceding companion paper). It was found that HRP conjugated to the lectin wheat germ agglutinin injected into motor cortical areas was transported beyond the thalamu...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237671
更新日期:1985-01-01 00:00:00
abstract::When asked to identify the position of a sound, listeners can report its perceived location as well as their subjective certainty about this spatial judgement. Yet, research to date focused primarily on measures of perceived location (e.g., accuracy and precision of pointing responses), neglecting instead the phenomen...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-020-05748-4
更新日期:2020-03-01 00:00:00
abstract::The brain noradrenaline (NA) system is known to modulate ischemic neuronal damage, and the turnover of NA has been suggested to increase in the early recovery period following cerebral ischemia. Using HPLC and gas chromatography-mass spectrometry we analyzed the tissue levels of NA and its metabolites, 3,4-dihydroxyph...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00230938
更新日期:1992-01-01 00:00:00
abstract::How the CNS deals with the issue of motor redundancy remains a central question for motor control research. Here we investigate the means by which neuromuscular and biomechanical factors interact to resolve motor redundancy in rhythmic multijoint arm movements. We used a two-df motorized robot arm to manipulate the dy...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-008-1437-2
更新日期:2008-08-01 00:00:00
abstract::Neurostimulation, e.g., transcranial direct current stimulation (tDCS), shows promise as an effective cognitive intervention. In spite of low spatial resolution, limited penetration, and temporary influence, evidence highlights tDCS-linked cognitive benefits in a range of cognitive domains. The left posterior parietal...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-014-4090-y
更新日期:2014-12-01 00:00:00
abstract::We report the connections of cerebellar cortical lobule HVI in the rabbit. We have studied the anterograde and retrograde transport of wheatgerm-agglutinated horseradish peroxidase (WGA-HRP) following its injection into HVI to reveal efferent and afferent connections. All of the cases showed strong anterograde transpo...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237024
更新日期:1985-01-01 00:00:00
abstract::The review summarises current evidence on the cognitive mechanisms for the integration of spatial and temporal representations and of common brain structures to process the where and when of stimuli. Psychophysical experiments document the presence of spatially localised distortions of sub-second time intervals and su...
journal_title:Experimental brain research
pub_type: 杂志文章,评审
doi:10.1007/s00221-009-1834-1
更新日期:2009-06-01 00:00:00
abstract::Previous studies have found that attention is oriented in the direction of other people's gaze suggesting that gaze perception is related to the mechanisms of joint attention. However, the role of the perception of gaze direction on joint attention has been challenged. We investigated the effects of disrupting gaze pe...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-009-1706-8
更新日期:2009-04-01 00:00:00
abstract::Although it is well known that the corticospinal system exerts more influence over distal (hand and fingers) than proximal (elbow and shoulder) upper limb muscles, differences in the importance of this system for voluntary activation of these muscle groups have not been demonstrated directly. Two investigations were c...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s002210050926
更新日期:1999-12-01 00:00:00
abstract::This report describes two models of human behavior when detecting displacements of joints that allow one to compare and integrate findings from different proprioception tests in a quantitative way. Results from various tests have led to different and often conflicting conclusions about proprioceptive behaviors and the...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227954
更新日期:1996-12-01 00:00:00