Abstract：
:Recognizing and categorizing visual stimuli are cognitive functions vital for survival, and an important feature of visual systems in primates as well as in birds. Visual stimuli are processed along the ventral visual pathway. At every stage in the hierarchy, neurons respond selectively to more complex features, transforming the population representation of the stimuli. It is therefore easier to read-out category information in higher visual areas. While explicit category representations have been observed in the primate brain, less is known on equivalent processes in the avian brain. Even though their brain anatomies are radically different, it has been hypothesized that visual object representations are comparable across mammals and birds. In the present study, we investigated category representations in the pigeon visual forebrain using recordings from single cells responding to photographs of real-world objects. Using a linear classifier, we found that the population activity in the visual associative area mesopallium ventrolaterale (MVL) distinguishes between animate and inanimate objects, although this distinction is not required by the task. By contrast, a population of cells in the entopallium, a region that is lower in the hierarchy of visual areas and that is related to the primate extrastriate cortex, lacked this information. A model that pools responses of simple cells, which function as edge detectors, can account for the animate vs. inanimate categorization in the MVL, but performance in the model is based on different features than in MVL. Therefore, processing in MVL cells is very likely more abstract than simple computations on the output of edge detectors.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Azizi AH,Pusch R,Koenen C,Klatt S,Bröker F,Thiele S,Kellermann J,Güntürkün O,Cheng Sdoi
10.1016/j.bbr.2018.05.014subject
Has Abstractpub_date
2019-01-01 00:00:00pages
423-434eissn
0166-4328issn
1872-7549pii
S0166-4328(18)30471-6journal_volume
356pub_type
杂志文章abstract：:Newly born neurons continuously migrate into the main and accessory olfactory bulbs and modulate the output of projection neurons. Despite some contradictory results, it is becoming clear that these newly born neurons play an important role in the response to some odorant cues. In this minireview, we discuss the recen...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/j.bbr.2011.04.038
更新日期：2012-02-14 00:00:00
abstract：:The study examined the effect of testosterone on the asymmetry of visual discrimination performance of young chicks. Two-week-old chicks were tested on the pebble floor visual discrimination task. Male chicks were found to have brain asymmetry for visual discrimination learning, since chicks tested binocularly, or tes...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(87)90026-x
更新日期：1987-03-01 00:00:00
abstract：:Paradoxically, animals exhibiting haloperidol-induced cataleptic immobility can be induced to leap vigorously, by pushing them forward from behind. It is shown here that such jumping can also be produced by placing them on a board and tilting it tail-end upward until about 50 degrees above horizontal. In both situatio...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(89)80141-x
更新日期：1989-12-01 00:00:00
abstract：:Motor performance declines with increasing age and it has been proposed that elder people might compensate for these deficits with increased cerebral activation. However, it is not known, whether increased activation - especially in motor areas of the contralateral and the ipsilateral cerebral hemisphere - might effec...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2011.04.040
更新日期：2011-10-01 00:00:00
abstract：:Increasing evidence suggests that disruptions of synaptic functions correlate with the severity of cognitive deficit in Alzheimer's disease (AD). Our previous study demonstrated that baicalein enhances long-term potentiation (LTP) in acute rat hippocampal slices and improves hippocampus-dependent contextual fear condi...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2016.05.052
更新日期：2016-09-15 00:00:00
abstract：:The present work was aimed to evaluate the contribution of interoception to the autonomic and behavioral responses to hypoxia. To address this issue, we studied whether the inactivation of the primary interoceptive posterior insular cortex (pIC) may disrupt the autonomic and behavioral effects of hypoxia in conscious ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2013.07.015
更新日期：2013-09-15 00:00:00
abstract：:The effect of stress on the behavioural changes caused by diazepam withdrawal was studied in mice. Diazepam (2.5 mg/kg) or vehicle was injected intraperitoneally twice a day for 2 weeks. When the last vehicle or diazepam injection had been administered to the mice, 12 h later, the mice were subjected to small platform...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(98)00036-9
更新日期：1998-12-01 00:00:00
abstract：:Diminished dopamine D1 stimulation may contribute to cognitive impairment in Alzheimer's and Parkinson's diseases, schizophrenia, and other neuropsychiatric disorders. However, orthosteric D1 receptor (D1R) agonists produce receptor desensitization and an inverted U-shaped dose-response curve, but positive allosteric ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2018.12.006
更新日期：2019-04-01 00:00:00
abstract：:Novelty and surprises differentially modify the left and right sides of the brain. Here we show that repeated brief exposures to the novelty of a non-home environment during infancy and early adulthood lead to long-lasting changes in adulthood in the global bi-lateralization organization of the brain as indexed by a t...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2011.02.047
更新日期：2011-08-01 00:00:00
abstract：:The association between morphine withdrawal and depressive-like symptoms is well documented, however, the role of dynorphin/κ opioid receptor system and the underlying neural substrates have not been fully understood. In the present study, we found that four weeks morphine abstinence after a chronic escalating morphin...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2015.05.053
更新日期：2015-09-15 00:00:00
abstract：:Despite significant progress, many uncertainties remain regarding molecular and cellular mechanisms governing opiate tolerance. We report that loss of EphB2 receptor reverse signaling results in a marked acceleration of morphine tolerance in vivo. EphB2 null mice exhibited no significant difference in brain or blood m...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2015.09.023
更新日期：2016-03-01 00:00:00
abstract：:We describe a stereotaxic technique to transect the optic chiasm in the rat and present illustrative data on the interocular transfer of visual discrimination in chiasm-sectioned and chiasm-plus-forebrain commissure-sectioned animals. Applications of the technique are discussed. ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(05)80069-5
更新日期：1991-05-15 00:00:00
abstract：:The existence of left-right hemispheric differences has been suggested not only in humans but also in rodents. In recent studies, left-right anatomical and functional differences of the rodent hippocampus have been revealed. However, there is only one report investigating the left-right difference for short-term memor...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2020.112478
更新日期：2020-03-16 00:00:00
abstract：:In previous studies based on high resolution EEG analyses of the 7 h baseline session of 18 adult male Wistar rats [6,14], we have identified four sleep sequences initiating with slow wave sleep (SS) and terminating with waking (W) or paradoxical sleep (PS). Two of these sequences contained an intervening episode of t...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(00)00339-9
更新日期：2001-02-15 00:00:00
abstract：:Rats with aspiration or excitotoxic (NMDA) lesions of the parahippocampal region were trained on a series of behavioral tasks which consisted of: (1) a test of spatial memory (discrete trial rewarded alternation), (2) a black-white discrimination, and (3) a test of non-spatial memory commonly used in primate models of...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(93)90011-e
更新日期：1993-05-31 00:00:00
abstract：:Some behavioral effects of GABA in the hippocampus and its probable interaction with histamine in adult male rats were studied. Four experiments were performed. In Expt. 1, rats were implanted unilaterally into the ventral hippocampus and they were microinjected with increasing doses of GABA. Five minutes later the fo...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(90)90088-v
更新日期：1990-03-05 00:00:00
abstract：:Neonatal mice received subcutaneous injections of either antibody against murine NGF raised in goat (3 mg, injection volume 50 microliters) or preimmune serum on postnatal days 2, 4, 6, 8, 10, and 12. They were tested on postnatal days 15-16 or 20-21 for learning and 24-h retention of a passive avoidance step-through ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(95)00234-0
更新日期：1996-08-01 00:00:00
abstract：:Rabbits with lesions of the midline thalamic nuclei were compared to rabbits with sham lesions on classical eyeblink (EB) and heart rate (HR) conditioning. Separate groups of sham and lesioned animals received either 25, 50 or 100% reinforcement with a periorbital shock unconditioned stimulus. Animals with lesions sho...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(98)00022-9
更新日期：1998-12-01 00:00:00
abstract：:Women are at greater risk than men for developing posttraumatic stress disorder (PTSD) after trauma exposure. Sleep, especially rapid-eye-movement sleep (REMS), has been considered a contributing factor to the development of PTSD symptoms through its effects on the processing of emotional memories. However, it remains...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2019.112156
更新日期：2020-01-27 00:00:00
abstract：:This study assesses gender differences in spatial and non-spatial relational learning and memory in adult humans behaving freely in a real-world, open-field environment. In Experiment 1, we tested the use of proximal landmarks as conditional cues allowing subjects to predict the location of rewards hidden in one of tw...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2009.09.046
更新日期：2010-02-11 00:00:00
abstract：:Recent evidence shows that early life stress (ELS) is associated with altered resting-state functional connectivity (RSFC) between amygdala and the prefrontal cortex, as well as with maladaptive emotion regulation strategies and negative mood. However, the relation between ELS and maladaptive emotion regulation is not...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2017.09.018
更新日期：2018-01-30 00:00:00
abstract：:Gangliosides are compounds that are abundant throughout the CNS, participating actively in neuroplasticity. We previously described that exogenous GM1 ganglioside pretreatment enhances the rewarding properties of cocaine, evidenced by a lower number of sessions and/or dosage necessary to induce conditioned place prefe...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2014.10.013
更新日期：2015-02-01 00:00:00
abstract：:Explicit encoding requires humans to select the information relevant to their goals, yet not all irrelevant information is discarded. The present study addressed how different quantity and relevance of information modulate the electrophysiological activity during the encoding and retrieval phases of a recognition memo...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2012.11.041
更新日期：2013-03-15 00:00:00
abstract：:Monkeys with V4 lesions and unoperated controls were tested behaviourally for their perception of the colour categories red, green, blue and yellow. As expected, the monkeys with V4 lesions took longer to acquire the colour discriminations. However, the pattern of learning was the same in the two groups of animals. Bo...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(05)80327-4
更新日期：1992-11-30 00:00:00
abstract：:Data are reviewed that suggest a common neural system may be involved in the rewarding properties of psychomotor stimulant and opiate drugs. This neural system corresponds to elements in the ventral tegmental dopamine system with cell bodies in the ventral tegmentum and axon terminals in the nucleus accumbens. Several...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(86)90032-x
更新日期：1986-11-01 00:00:00
abstract：:One of the most established hypotheses of depression focuses on alteration of the serotonergic (5-HT) function. Recent evidence suggests that serotonergic involvement in depression may be modulated by the action of gamma-hydroxybutyric acid (GABA). Furthermore, altered GABAergic function is also evident in depressed p...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2007.03.018
更新日期：2007-07-19 00:00:00
abstract：:NC-1900, an active fragment analog of arginine vasopressin [arginine vasopressin-(4-9)], has proved to be capable of improving the spatial memory deficits and the impairments in passive avoidance test. In this study, a novel drug carrier for brain delivery, cationic bovine serum albumin conjugated pegylated nanopartic...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2006.06.001
更新日期：2006-10-02 00:00:00
abstract：:We have previously observed that a single exposure to a severe stressor such as immobilization in wooden boards (IMO) resulted in a faster return of plasma corticosterone (and to a lesser extent of ACTH) to basal activity when the rats were exposed again to the same stressor. In addition, the effect enhanced with time...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(01)00340-0
更新日期：2002-02-01 00:00:00
abstract：:The performance of subjects walking blindly to previously inspected visual targets (located at 5, 10 or 15 m from the subjects) was studied in 2 experiments. In Expt. 1, subjects selected as good visual imagers were instructed to build up a mental representation of the target. Then they had to either actually walk or ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(89)80088-9
更新日期：1989-08-01 00:00:00
abstract：:Classical conditioning theories of addiction suggest that stimuli associated with rewards acquire incentive salience, inducing emotional and attentional conditioned responses. It is not clear whether those responses occur without contingency awareness (CA), i.e. are based on explicit or implicit learning processes. Ex...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2017.12.015
更新日期：2018-04-02 00:00:00
