Abstract：
:It is widely believed that cells in area 17 send axons specifically to neurons in other cortical areas whose receptive fields coincide with their own. We asked whether this was true in cats for area 17's projection to a large suprasylvian visual area, the Clare-Bishop area. Receptive fields were plotted at multiple sites in the Clare-Bishop area. Then, in area 17, anterograde tracer was injected at a retinotopically-characterized site, giving rise to patches of labeled terminals in the Clare-Bishop area. Receptive field centers recorded within these patches were located close to the visual field location at the injection site in area 17. Receptive fields recorded outside of labeled patches, on the other hand, were never in register with that plotted in area 17. However, due to their large size, even fields located outside of labeled patches often encompassed the visual field point injected in area 17. In other experiments, receptive fields for both neurons and presumed cortical afferents were recorded at the same site in the Clare-Bishop area. The centers of such pairs of receptive fields were on average less than 1 degree apart. Finally, the gaps between widely separated patches of label were investigated. Both physiological and anatomical evidence indicated that a different part of the visual field was represented in gaps than in the adjacent patches.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Sherk H,Ombrellaro Mdoi
10.1007/BF00250246subject
Has Abstractpub_date
1988-01-01 00:00:00pages
225-36issue
2eissn
0014-4819issn
1432-1106journal_volume
72pub_type
杂志文章abstract：:Spontaneous firing of midbrain reticular formation (MRF) neurons was recorded extracellularly in chronically implanted, behaving cats during steady and transitional states of the sleep-waking cycle. Physiological identification of receiver and/or projection MRF neurons was achieved through orthodromically elicited dis...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238096
更新日期：1982-01-01 00:00:00
abstract：:Learning in perceptual tasks is typically highly specific to the trained stimulus parameters. However, can learning be specific to a stimulus parameter that is perceptually indistinguishable from another? We assessed this question using a perceived sound location task in which the perceived sound location was created ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-3863-7
更新日期：2014-06-01 00:00:00
abstract：:The present experiments were designed to investigate the neuronal mechanisms, at the level of the primary somatosensory cortex, which underlie the observation that somatosensory cortical potentials evoked by air puff stimuli directed at the forearm are decreased, in a nonspecific and widespread manner, during voluntar...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231455
更新日期：1991-01-01 00:00:00
abstract：:The praxis system comprises a network of brain regions dedicated to complex skilled movements. Following suggestions of a female advantage on learned movements (Chipman and Hampson in Neuropsychologia 44(12):2315-2329, 2006), we investigated how males and females acquire skilled movements. Subjects viewed and imitated...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2351-y
更新日期：2010-08-01 00:00:00
abstract：:Multisensory integration is known to create a more robust and reliable perceptual representation of one's environment. Specifically, a congruent auditory input can make a visual stimulus more salient, consequently enhancing the visibility and detection of the visual target. However, it remains largely unknown whether ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4591-y
更新日期：2016-05-01 00:00:00
abstract：:The effects of visual contextual illusions on motor behaviour vary largely between experimental conditions. Whereas it has often been reported that the effects of illusions on pointing and grasping are largest when the movement is performed some time after the stimulus has disappeared, the effect of a delay has hardly...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4520-5
更新日期：2016-04-01 00:00:00
abstract：:Eye-hand coordination is geometrically complex. To compute the location of a visual target relative to the hand, the brain must consider every anatomical link in the chain from retinas to fingertips. Here we focus on the first three links, studying how the brain handles information about the angles of the two eyes and...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1523-4
更新日期：2003-09-01 00:00:00
abstract：:Push-pull cannulae were inserted into both medial and lateral banks of the suprasylvian sulcus and used for local perfusion with artificial extracellular fluid (aECF). Electrical stimulations of regions of cortex projecting to the lateral suprasylvian area (LSA) were accompanied by enhanced levels of release of excita...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235323
更新日期：1985-01-01 00:00:00
abstract：:The main aim of the present study was to explore, by means of high-density EEG, the intensity and the temporal pattern of event-related sensory-motor alpha desynchronization (ERD) during the observation of different types of hand motor acts and gestures. In particular, we aimed to investigate whether the sensory-motor...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2371-7
更新日期：2010-09-01 00:00:00
abstract：:Studies of movement-related cortical potentials (MRCPs) for simple movements have shown a slowly rising negativity (Bereitschaftspotential, or BP) about 2 s prior to movement onset, centered in the bilateral sensorimotor area. However, complex movements may elicit a different temporal and spatial distribution of this ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-2314-x
更新日期：2005-06-01 00:00:00
abstract：:Lateral and medial thalamus are traditionally thought to have separate roles in pain processing, with lateral lemniscal regions transmitting discriminative information about location and intensity, while medial nonspecific regions are involved in emotional responses. Contrary to this view, the present study shows that...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228914
更新日期：1989-01-01 00:00:00
abstract：:In our study we examined, in the rabbit, the interactions between temperature regulation and the state of increased vigilance and emotional arousal induced by a Classical Aversive Conditioning Procedure. A Delay Conditioning Procedure was used. The Conditioned Stimulus (CS) was a 1350 Hz, 85 dB tone, the Unconditioned...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238813
更新日期：1981-01-01 00:00:00
abstract：:Single cell activity was recorded in area 18 during optokinetic nystagmus (OKN) in awake cats. The search coil technique was used to record the horizontal and vertical eye movements. Cells showing direction specific responses to a moving large area random dot pattern (70%) were tested with different velocities in the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231138
更新日期：1984-01-01 00:00:00
abstract：:In cat medial gastrocnemius motoneurons, single stimuli to the cutaneous sural nerve evoke a post-synaptic potential with a mixture of depolarization and hyperpolarization, depolarization being dominant in type F cells and hyperpolarization in type S cells. This pattern is consistent with previous reports showing that...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230025
更新日期：1992-01-01 00:00:00
abstract：:Intracellular injection of EGTA abolished the hyperpolarization seen after spontaneous and evoked bursts of action potentials in hippocampal CA3 neurons. Simultaneously recorded, orthodromically elicited IPSPs were relatively unaffected by this treatment. It is concluded that CA3 neurons generate at least two types of...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237513
更新日期：1981-01-01 00:00:00
abstract：:Shape is an inherent property of objects existing in both vision and touch but not audition. Can shape then be represented by sound artificially? It has previously been shown that sound can convey visual information by means of image-to-sound coding, but whether sound can code tactile information is not clear. Blindfo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2178-6
更新日期：2010-05-01 00:00:00
abstract：:The main belly of the macaque's flexor digitorum profundus (FDP) is divided by a dissectible plane into radial and ulnar regions. The present report describes three findings which suggest that the radial and ulnar regions represent separate functional subdivisions of the FDP. First, electromyographic (EMG) recordings ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229783
更新日期：1993-01-01 00:00:00
abstract：:Schizophrenia patients show impaired saccadic response switching, pointing to action control deficits at the level of response selection. Previous studies on healthy subjects suggested that response switch effects might decrease if the prior response is longer ago, reflecting a slow dissipation of the response program...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1871-9
更新日期：2009-07-01 00:00:00
abstract：:Anticipatory pursuit is not exclusively based on the recent history of target motion ("temporal anticipation"): it can also use static visual cues ("non-temporal anticipation"). Large non-temporal anticipatory changes of the direction of smooth pursuit are observed when the future trajectory of the target can be infer...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1840-3
更新日期：2009-06-01 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：:Astronauts returning from space flight and performing Earth-bound activities must rapidly transition from the microgravity-adapted sensorimotor state to that of Earth's gravity. The goal of the current study was to assess locomotor dysfunction and recovery of function after long-duration space flight using a test of f...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2171-0
更新日期：2010-05-01 00:00:00
abstract：:Conspicuous nerve-cell assemblies, identified as the marginal nuclei described in other sauropsidans, were found all along the spinal cord of turtles. gamma-aminobutyric acid (GABA) and nitric oxide synthase (NOS) activities were colocalized within these neurons, which also reacted positively to reduced nicotinamide a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050499
更新日期：1998-09-01 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
pub_type： 杂志文章
doi：10.1007/BF00247577
更新日期：1988-01-01 00:00:00
abstract：:The cerebrovascular consequences of the gentle restraint commonly used for the measurement of local cerebral blood flow (LCBF) in conscious rats has been tested by using two drugs, propranolol and diazepam. Propranolol induced small LCBF decreases in 7 structures suggesting that the cerebral circulation was partially ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235660
更新日期：1986-01-01 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 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：:We studied the finger interactions during maximum voluntary force (MVF) production in flexion and extension in children and adults. The goal of this study was to investigate the age-related changes and flexion-extension differences of MVF and finger interaction indices, such as finger inter-dependency (force enslaving...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0629-x
更新日期：2007-01-01 00:00:00
abstract：:We explored digit coordination during the acceleration phase of a quick lifting movement of a hand-held horizontal object. We tested three hypotheses related to: (1) the scaling of mechanical variables produced by the hand with changes in the external load, torque, and moment of inertia; (2) changes in the safety marg...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3215-4
更新日期：2012-10-01 00:00:00
abstract：:Brain-damaged patients may extinguish contralesional stimuli when ipsilesional stimuli are presented simultaneously. Most theories of extinction postulate that stimuli compete for pathologically limited attentional resources with a bias to process ipsilesional over contralesional stimuli. Implicit in this view is the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1823-8
更新日期：2004-07-01 00:00:00
abstract：:The human visual system is strikingly insensitive to speed changes attributed to the need to infer visual acceleration, observed during stationary fixation, indirectly by comparing velocities integrated over time. The objective of this study was to test if smooth pursuit eye movements improve the detection of speed ch...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0216-6
更新日期：2006-04-01 00:00:00
