Abstract:
:Humans perform object recognition effortlessly and accurately. However, it is unknown how the visual system copes with variations in objects' appearance and the environmental conditions. Previous studies have suggested that affine variations such as size and position are compensated for in the feed-forward sweep of visual information processing while feedback signals are needed for precise recognition when encountering non-affine variations such as pose and lighting. Yet, no empirical data exist to support this suggestion. We systematically investigated the impact of the above-mentioned affine and non-affine variations on the categorization performance of the feed-forward mechanisms of the human brain. For that purpose, we designed a backward-masking behavioral categorization paradigm as well as a passive viewing EEG recording experiment. On a set of varying stimuli, we found that the feed-forward visual pathways contributed more dominantly to the compensation of variations in size and position compared to lighting and pose. This was reflected in both the amplitude and the latency of the category separability indices obtained from the EEG signals. Using a feed-forward computational model of the ventral visual stream, we also confirmed a more dominant role for the feed-forward visual mechanisms of the brain in the compensation of affine variations. Taken together, our experimental results support the theory that non-affine variations such as pose and lighting may need top-down feedback information from higher areas such as IT and PFC for precise object recognition.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Karimi-Rouzbahani H,Bagheri N,Ebrahimpour Rdoi
10.1016/j.neuroscience.2017.02.050subject
Has Abstractpub_date
2017-05-04 00:00:00pages
48-63eissn
0306-4522issn
1873-7544pii
S0306-4522(17)30141-0journal_volume
349pub_type
杂志文章相关文献
NEUROSCIENCE文献大全abstract::Fragile X mental retardation protein (FMRP), an important RNA-binding protein responsible for fragile X syndrome, is involved in posttranscriptional control of gene expression that links with brain development and synaptic functions. Here, we reveal a novel role of FMRP in pre-mRNA alternative splicing, a general even...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2017.02.044
更新日期:2017-05-04 00:00:00
abstract::Grafted neurons obtained from the fetal basal forebrain can provide a functional cholinergic reinnervation of the hippocampal formation in rats with a lesion of the intrinsic septal cholinergic afferents. In the present experiments graft-derived acetylcholine release in the hippocampus was studied by microdialysis in ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(92)90074-c
更新日期:1992-07-01 00:00:00
abstract::Cocaine blocks uptake by neuronal plasma membrane transporters for dopamine, serotonin and norepinephrine, producing subjective effects in humans that are both euphoric/rewarding and also fearful, jittery and aversive. Mice with gene knockouts of each of these transporters display cocaine reward, manifest by cocaine p...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00379-2
更新日期:2002-01-01 00:00:00
abstract::Previous experiments with wheatgerm agglutinin, an inhibitor of ionotropic quisqualate receptor desensitization, suggest that desensitization regulates quisqualate receptor-mediated synaptic transmission and excitotoxicity. Using whole-cell recordings from cultured postnatal rat hippocampal neurons, we have examined t...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90179-j
更新日期:1993-01-01 00:00:00
abstract::The present paper is the first immunocytochemical demonstration of kappa-opioid receptors in neurons isolated from seven-day-old chick embryonic forebrains and cultivated for one to seven days. The monoclonal antibody KA8 (IgG1-k) [Maderspach et al. (1991) J. Neurochem. 56, 1897-1904] was raised against the frog brain...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90078-t
更新日期:1993-11-01 00:00:00
abstract::Neurodegeneration in fetal development of Down syndrome (DS) patients is proposed to result in apparent neuropathological abnormalities and to contribute to the phenotypic characteristics of mental retardation and premature development of Alzheimer disease. In order to identify the aberrant and specific genes involved...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.06.081
更新日期:2004-01-01 00:00:00
abstract::Seizures produced by pilocarpine given i.p. to rats provide an animal model for studying the initiation, spread and generalisation of convulsive activity within the forebrain. Pilocarpine, 380 mg/kg, produces a sequence of behavioural and electroencephalographic alterations indicative of motor limbic seizures and stat...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(86)90179-x
更新日期:1986-05-01 00:00:00
abstract::Certain patterns of neural activity can induce N-methyl-D-aspartic acid receptor (NMDAR)-dependent synaptic plasticity, one of the important foundations of memory. Here, we report that a patterned high-frequency stimulation (PHS) induces rat hippocampal long-term depression (LTD) in an NMDAR-independent manner that re...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2013.07.059
更新日期:2013-10-10 00:00:00
abstract::The present study was designed to clarify an intensity-dependent effect of prenatal stress on the morphological development of hippocampal neurons in rats. In addition, the involvement of receptors for glucocorticoids, i.e. mineralocorticoid receptors and glucocorticoid receptors, in stress-induced changes in the morp...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2006.04.046
更新日期:2006-08-25 00:00:00
abstract::The possible irreversible blockade of 5-hydroxytryptamine1 receptor subtypes 5-hydroxytryptamine1A, 5-hydroxytryptamine1B/5-hydroxytryptamine1D and 5-hydroxytryptamine1C by the chloramine 8-methoxy-2-(N-2'-chloropropyl,N-propyl)aminotetralin (8-MeO-2'-chloro-PAT) was investigated in rat brain sections by quantitative ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(89)90436-3
更新日期:1989-01-01 00:00:00
abstract::The capacity of neural stem cells (NSC) to generate different types of neurons and glia depends on the action of intrinsic determinants and extracellular signals. Here, we isolated adult olfactory bulb stem cells (aOBSC) that express nestin, RC2 and Sox2, and that have the capacity to generate neurons possessing matur...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.03.033
更新日期:2009-08-04 00:00:00
abstract::After experimentally inducing long term changes in transmitter release, a series of frog neuromuscular junctions were studied with intracellular recording and then semi-serially sectioned and examined in the electron microscope. Transmitter release per unit length of motor nerve terminal was well correlated with sever...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(85)90187-3
更新日期:1985-11-01 00:00:00
abstract::The effect of a transient increase in extracellular calcium concentration on the Schaffer collateral-commissural evoked excitatory postsynaptic potential and population spike responses of CAI pyramidal neurons was investigated using the rat in vitro hippocampal slice preparation. Brief exposure of slices (5-10 min) to...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(82)90254-8
更新日期:1982-06-01 00:00:00
abstract::About 7.5million adults in Germany cannot read and write properly despite attending school for several years. They are considered to be functional illiterates. Since the ability to read and write is crucial for being employed and socially accepted, we developed a literacy training to overcome these deficits. In this s...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.12.049
更新日期:2017-03-06 00:00:00
abstract::Endocannabinoids and somatostatin (SST) play critical roles in several pathophysiological conditions via binding to different receptor subtypes. Cannabinoid receptor 1 (CB1R) and somatostatin receptors (SSTRs) are expressed in several brain regions and share overlapping functions. Whether these two prominent members o...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.10.056
更新日期:2017-01-06 00:00:00
abstract::Gene therapy holds great potential for treating neurological disorders. However, delivering gene vectors to the brain has been either invasive or inefficacious in most studies to date. The aim of this study was to develop a safe and efficacious strategy for delivering gene vectors to the brain. A tetracycline-inducibl...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2011.10.043
更新日期:2012-01-10 00:00:00
abstract::This good laboratory practice (GLP) study of aluminum salts in Sprague-Dawley rats was conducted according to double-blind, vehicle-controlled randomized design by exposing offspring to aluminum citrate in-utero, through lactation, and then in drinking water post-weaning. Three dose levels were used: 30, 100, 300 mg A...
journal_title:Neuroscience
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.neuroscience.2011.05.008
更新日期:2011-10-13 00:00:00
abstract::Age-related functional alterations in a variety of neurotransmitter systems result in modulation of interneuronal communications which has some relevance in neurological deficits observed in the aging process. The synergistic interactions between protein kinase and inositol 1,4,5-trisphosphate (insP3)/Ca2+ pathways un...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(95)00298-w
更新日期:1995-12-01 00:00:00
abstract::Cervical or high thoracic spinal cord injury often results in autonomic dysreflexia, a condition characterized by exaggerated spinal reflexes and episodic hypertension, that may be caused by reorganization of synapses on sympathetic preganglionic neurons after loss of supraspinal input. To assess remodelling of synapt...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(97)00151-6
更新日期:1997-11-01 00:00:00
abstract::Tg2576 transgenic mice (mice overexpressing the "Swedish" mutation in the human amyloid precursor protein 695) demonstrated a decreased capacity for cell proliferation in the dentate gyrus of the hippocampus compared with non-transgenic littermates at 3 months, 6 months and 9 months of age. Isolation stress induced by...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.05.040
更新日期:2004-01-01 00:00:00
abstract::Several lines of research have implicated glutathione (GSH) in schizophrenia. For instance, GSH deficiency has been reported in the prefrontal cortex of schizophrenics in vivo. Further, in rats postnatal GSH-deficiency combined with hyperdopaminergia led to cognitive impairments in the adult. In the present report we ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2005.01.059
更新日期:2005-01-01 00:00:00
abstract::We have recently reported on the efficacy of an N-methyl-d-aspartate (NMDA) receptor partial antagonist, S-Methyl-N,N-diethylthiolcarbamate sulfoxide (DETC-MeSO), in improving outcome following stroke, including reduced infarct size and calcium influx, suppressing the endoplasmic reticulum (ER) stress-induced apoptosi...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.05.042
更新日期:2015-08-06 00:00:00
abstract::The location of sympathetic preganglionic neurons (SPN) in the spinal cord of the reeler mouse mutant is abnormal. Instead of their normal location in the intermediolateral column, the majority of SPN in the reeler cluster around the central canal. To determine whether ectopically located SPN in the reeler form approp...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00945-4
更新日期:2003-01-01 00:00:00
abstract::Parkinson's disease (PD) is a neurodegenerative disorder primarily affecting the dopaminergic neurons in the nigrastriatal pathway resulting in debilitating motor impairment in both familial and sporadic cases. Histone deacetylase (HDAC) inhibitors have been recently implicated as a therapeutic candidate because of th...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2013.04.037
更新日期:2013-08-29 00:00:00
abstract::The aim of the present study was to investigate whether the activation of muscarinic receptors is a preliminary step to the endogenous release of nitric oxide modulating nicotinic transmission within the prevertebral ganglia. This work has been performed in vitro in isolated rabbit coeliac ganglion. The electrical act...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(99)00518-7
更新日期:2000-01-01 00:00:00
abstract::Rats exposed to repeated unavoidable stress show decreased dopamine output in the nucleus accumbens shell (NAcS) and do not acquire vanilla sugar (VS)-sustained appetitive behavior (VAB). Rats treated with lithium for 3 weeks also show decreased NAcS dopamine output, yet they acquire VAB. Feeding a novel palatable foo...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(03)00383-x
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVE:The spontaneous action potential of isolated sinoatrial node (SAN) cells is regulated by a coupled-clock system of two clocks: the calcium clock and membrane clock. However, it remains unclear whether calcium clock inhibitors have a direct effect on the membrane clock. The purpose of this study was to investi...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.01.018
更新日期:2020-05-01 00:00:00
abstract::This study aimed to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) on learning and memory in a rat model of vascular dementia (VaD) and to analyze the associated mechanisms. Bilateral carotid artery occlusion (2-VO) was used to establish a rat model of VaD. High-frequency (5Hz) rTMS was pe...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.10.038
更新日期:2015-12-17 00:00:00
abstract::The widespread distribution of neurons containing alpha-atrial natriuretic polypeptide-like immunoreactivity in the rat brain was demonstrated using radioimmunoassay and immunohistochemistry in conjunction with specific antisera. The highest concentrations of alpha-atrial natriuretic polypeptide-like immunoreactivity ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(85)90190-3
更新日期:1985-11-01 00:00:00
abstract::Microglia play important roles in the pathogenesis of Alzheimer's disease (AD), in part, by affecting the clearance of amyloid-β (Aβ) peptides. Most studies, however, used synthetic soluble Aβ (sAβ) at higher concentrations. The exact mechanisms underlying microglia-mediated clearance of physiological sAβ at very low ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.07.020
更新日期:2020-09-01 00:00:00