Abstract：
:We investigated whether perception of affordances for standing on an inclined surface depended on the height of center of mass of the perceiver-actor. Participants adjusted the angle of inclination of a surface until they felt that it was just barely possible for them to stand on that surface. They performed this task while wearing a backpack apparatus to which masses were attached in one of three configurations-high-mass, low-mass, and no-mass. Moreover, participants performed this task by viewing the inclined surface or by probing it with a hand-held rod (while blindfolded). Perception of affordances for standing on the inclined surface reflected the changes in center of mass brought on by the weighted backpack apparatus (the perceptual boundary occurred at a smaller angle of inclination in the high-mass condition than in the low-mass condition and in the no-mass condition). Moreover, perception of this affordance reflected such changes both when the surface was viewed and when the surface was probed with a hand-held rod (while blindfolded). The results highlight that perception of affordances is dynamic and task-dependent and suggest that the stimulation patterns that support perception of affordances are invariant and modality-independent.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Regia-Corte T,Wagman JBdoi
10.1007/s00221-008-1492-8subject
Has Abstractpub_date
2008-10-01 00:00:00pages
25-35issue
1eissn
0014-4819issn
1432-1106journal_volume
191pub_type
杂志文章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：: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
pub_type： 杂志文章
doi：10.1007/s00221-014-4027-5
更新日期：2014-11-01 00:00:00
abstract：:Extracellularly recorded action potentials from 49 Bötzinger-complex, bulbospinal expiratory neurones were used as triggers to compute 162 spike-triggered averages (STAs) of intracellular potentials recorded from 167 respiratory neurones in the ventral respiratory group (VRG) near the obex in 15 vagotomized, paralysed...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050612
更新日期：1999-01-01 00:00:00
abstract：:Past research has demonstrated that both peripheral and central vision play an important role in the control of movement direction. However, it has been unclear whether the benefits of these sources of information are due to adjustments in the limb trajectory during movement execution (i.e., online) or modification in...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1897-y
更新日期：2004-09-01 00:00:00
abstract：:In cats anaesthetised with pentobarbitone, the effect of inhibitors of the in vitro cellular uptake of GABA were tested on the responses of single central neurones to GABA and other depressant amino acids. (4)- AND (-)-nepecotic acid, (4)-2,4-diaminobutyric acid (DABA) and 2,2-dimethyl-beta-alanine, enhanced the actio...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00241731
更新日期：1976-06-30 00:00:00
abstract：:The pharmacology of synaptic transmission was studied in slices of rat piriform cortex using the selective non-NMDA glutamate receptor antagonist 6.7-dinitroquinoxaline-2,3-dione (DNQX) and the selective NMDA receptor antagonist D-2-amino-5-phosphonopentanoate (D-AP5). DNQX produced a dose-dependent blockade of synapt...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231264
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：:Young children rely heavily on vision for postural control during the transition to walking. Although by 10 years of age, children have automatic postural responses similar to adults, it is not clear when the integration of sensory inputs becomes fully developed. The purpose of this study was to examine this transitio...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0109-8
更新日期：2006-01-01 00:00:00
abstract：:In rats under alpha-chloralose or without general anesthesia the effect of a lateral olfactory tract stimulus on the caudate nucleus electric activity was explored by bipolar macroelectrodes. The stimulation effectiveness and the reactivity of recording sites to somatic stimuli were systematically tested. Under these ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237049
更新日期：1977-08-31 00:00:00
abstract：:The effects of a cutaneous imperative stimulus trigger cue (sural nerve stimulation) versus visual cuing of rapid step initiation were assessed in young, healthy subjects (n = 18). Two sets of experiments were conducted in which the vertical ground reaction force and EMG in tibialis anterior (TA) and gluteus medius (G...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1566-7
更新日期：2009-01-01 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：:The moment production by several fingers on a mechanically fixed vertically oriented handle was studied under the systematic variations of task parameters such as (a) moment magnitude (1.0 Nm and 2.0 Nm) and (b) direction of moment production (into pronation and supination), as well as (c) vertical position of the han...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1859-4
更新日期：2004-08-01 00:00:00
abstract：:The cortical projections to neck muscle motoneurons were studied in normal subjects by electrical and magnetic transcranial brain stimulation. After magnetic stimulation with a large coil, motor evoked potentials were present in about 20% of relaxed and 100% of contracting neck muscles. The latency of these responses ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231857
更新日期：1991-01-01 00:00:00
abstract：:Normal vision overrides perturbed vestibular information for the optimization of performance during goal directed locomotion, suggesting down-regulation of vestibular gain. However, it is not known if the responses to vestibular perturbation are accentuated when vision is impaired. Furthermore, both visual and vestibu...
journal_title：Experimental brain research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00221-006-0593-5
更新日期：2007-01-01 00:00:00
abstract：:Adequate postural control is a prerequisite for daily activities such as reaching for an object. However, knowledge on the relationship between postural adjustments and the quality of reaching movements during human ontogeny is scarce. Therefore we evaluated the development of the relationship between the kinematic fe...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0964-6
更新日期：2007-08-01 00:00:00
abstract：:Changes in the direction of the line of sight (gaze) allow successive sampling of the visual environment. Saccadic eye movements accomplish this goal when the head does not move. Medium-lead burst neurons (MLBs) in the paramedian pontine reticular formation (PPRF) discharge a high frequency burst of action potentials ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2823-8
更新日期：2011-10-01 00:00:00
abstract：:The aim of this study was to examine effects of different types of task constraints on coupling of perception and action in people with chronic stroke when crossing obstacles during a walking task. Ten participants with hemiplegic chronic stroke volunteered to walk over a static obstacle under two distinct task constr...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-017-4920-9
更新日期：2017-06-01 00:00:00
abstract：:Observing an action activates action representations in the motor system. Moreover, the representations of manipulable objects are closely linked to the motor systems at a functional and neuroanatomical level. Here, we investigated whether action observation can facilitate object recognition using an action priming pa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1953-8
更新日期：2010-01-01 00:00:00
abstract：:The prefrontal cortex (PFC) plays an important role in several cognitive functions, such as planning, decision making, and social behavior. We previously reported that periodontal sensory input significantly increases PFC activity during the motor task of maintaining occlusal (biting) force. However, the relationships...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05630-y
更新日期：2019-11-01 00:00:00
abstract：:We employed binocular magnetic search coils to study the vestibulo-ocular reflex (VOR) and visually enhanced vestibulo-ocular reflex (VVOR) of 15 human subjects undergoing passive, whole-body rotations about a vertical (yaw) axis delivered as a series of pseudorandom transients and sinusoidal oscillations at frequenci...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/pl00005639
更新日期：1997-04-01 00:00:00
abstract：:The activity of single neurons within the hand area of the precentral motor cortex of primates was recorded during the performance of a maintained precision grip between the thumb and forefinger. The finger opposition forces were exerted against a strain gauge which allowed force changes to be studied under near isome...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239743
更新日期：1975-09-29 00:00:00
abstract：:We examined opioid binding in fractions with disconnected nerve endings (secretosomes) which were prepared from porcine neurohypophyses by centrifugation in a discontinuous Percoll gradient. Specific (= displaceable) binding was observed with 3H-etorphine and with 3H-diprenorphine, two ligands with low selectivity for...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00271856
更新日期：1988-01-01 00:00:00
abstract：:The fluorescent double-labeling technique has been used to determine whether the corticopontine and the corticotectal fibers in the cat are derived from two different sets of neurons or whether they are derived from branching neurons which distribute collaterals to the pontine grey and the colliculi. After unilateral ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00269447
更新日期：1987-01-01 00:00:00
abstract：:Differential pulse voltammetry was performed in rats chronically implanted with carbon fiber electrodes in the caudate (n.Cd) and raphe dorsalis (n.RD) nuclei. The electrochemical signal obtained at the +300 mV potential (peak 3) in animals implanted for more than one week (long term chronic conditions, greater than 7...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00340496
更新日期：1986-01-01 00:00:00
abstract：:Gamma band activity participates in sensory perception, problem solving, and memory. This review considers recent evidence showing that cells in the reticular activating system (RAS) exhibit gamma band activity, and describes the intrinsic membrane properties behind such manifestation. Specifically, we discuss how cel...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-013-3794-8
更新日期：2014-05-01 00:00:00
abstract：:The ensemble properties of unit activity in the rat hippocampus were studied during different behavioral states defined by the presence or absence of the theta rhythm. A 24-channel microelectrode was used to monitor the parallel activity of several single neurons simultaneously. Individual units were characterized by ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239532
更新日期：1986-01-01 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 lesion limited to the dorsal columns, at the level of L3-L4, was carried out in chronic cats. This operation produced a "partial axotomy" type of lesion on the ascending branches of Ia hind limb afferents. Two to six months after this operation, intracellular studies on L7-S1 motoneurons were carried out. Similar st...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00340482
更新日期：1986-01-01 00:00:00
abstract：:Human observers are experts at visual face recognition due to specialized visual mechanisms for face processing that evolve with perceptual expertize. Such expertize has long been attributed to the use of configural processing, enabled by fast, parallel information encoding of the visual information in the face. Here ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-013-3463-y
更新日期：2013-05-01 00:00:00
abstract：:It is an unresolved question whether the posture of single fingers relative to each other is represented in the brain within an external frame of reference. In two experiments, we investigated postural influences on the processing of tactile stimuli at fingers and hands. Healthy subjects received two simultaneous tact...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2396-y
更新日期：2010-09-01 00:00:00
