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https://www.readbyqxmd.com/read/25613647/attention-that-covers-letters-is-necessary-for-the-left-lateralization-of-an-early-print-tuned-erp-in-japanese-hiragana
#1
Yasuko Okumura, Tetsuko Kasai, Harumitsu Murohashi
Extensive experience with reading develops expertise in acquiring information from print, and this is reflected in specific enhancement of the left-lateralized N170 component in event-related potentials. The N170 is generally considered to reflect visual/orthographic processing; while modulations of its left-lateralization related to phonological processes have also been indicated. However, in our previous study, N170-like response to Hiragana strings lacked left-lateralization when the stimuli were completely task-irrelevant in rapid-presentation sequences [Okumura et al...
March 2015: Neuropsychologia
https://www.readbyqxmd.com/read/25436672/grasping-with-the-press-of-a-button-grasp-selective-responses-in-the-human-anterior-intraparietal-sulcus-depend-on-nonarbitrary-causal-relationships-between-hand-movements-and-end-effector-actions
#2
Scott H Frey, Marc Hansen, Noah Marchal
Evidence implicates ventral parieto-premotor cortices in representing the goal of grasping independent of the movements or effectors involved [Umilta, M. A., Escola, L., Intskirveli, I., Grammont, F., Rochat, M., Caruana, F., et al. When pliers become fingers in the monkey motor system. Proceedings of the National Academy of Sciences, U.S.A., 105, 2209-2213, 2008; Tunik, E., Frey, S. H., & Grafton, S. T. Virtual lesions of the anterior intraparietal area disrupt goal-dependent on-line adjustments of grasp. Nature Neuroscience, 8, 505-511, 2005]...
June 2015: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/24918462/transplanted-inscs-migrate-through-sdf-1-cxcr4-signaling-to-promote-neural-recovery-in-a-rat-model-of-spinal-cord-injury-retraction
#3
(no author information available yet)
The article by Ma et al. [Ma J, Li X, Yi B, Yao H, Zhao H, Zhang Y, et al. Transplanted iNSCs migrate through SDF-1/CXCR4 signaling to promote neural recovery in a rat model of spinal cord injury. Neuroreport 2014; 25:391–397] published in issue 6 of 2014 has been retracted by the Editors. This was owing to falsification of documentation that meant not all authors supported submission of the article for publication. The first author Jianhua Ma has accepted responsibility.
July 9, 2014: Neuroreport
https://www.readbyqxmd.com/read/23397638/the-effect-of-visual-information-in-speech-signals-by-bone-conducted-ultrasound
#4
Akinori Yamashita, Tadashi Nishimura, Yoshiki Nagatani, Takefumi Sakaguchi, Tadao Okayasu, Shuichi Yanai, Hiroshi Hosoi
A prototype for a bone-conducted ultrasonic hearing aid was developed for the profoundly deaf. Previous studies using bone-conducted ultrasonic hearing aid revealed intelligibility only with the use of acoustic media in transmitting language information. In this study, we investigated the effects of visual information (lip-reading information) on intelligibility in bone-conducted ultrasound perception of normal-hearing individuals. We found that lip-reading information had clear effects on bone-conducted ultrasound perception, showing that simultaneous presentation of audio and visual information improved intelligibility to levels sufficient for speech perception...
January 27, 2010: Neuroreport
https://www.readbyqxmd.com/read/23276214/temporally-specific-divided-attention-tasks-in-young-adults-reveal-the-temporal-dynamics-of-episodic-encoding-failures-in-elderly-adults
#5
Ray Johnson, Doreen Nessler, David Friedman
Nessler, Johnson, Bersick, and Friedman (D. Nessler, R. Johnson, Jr., M. Bersick, & D. Friedman, 2006, On why the elderly have normal semantic retrieval but deficient episodic encoding: A study of left inferior frontal ERP activity, NeuroImage, Vol. 30, pp. 299-312) found that, compared with young adults, older adults show decreased event-related brain potential (ERP) activity over posterior left inferior prefrontal cortex (pLIPFC) in a 400- to 1,400-ms interval during episodic encoding. This altered brain activity was associated with significantly decreased recognition performance and reduced recollection-related brain activity at retrieval (D...
June 2013: Psychology and Aging
https://www.readbyqxmd.com/read/22237852/lack-of-early-pattern-stimulation-prevents-normal-development-of-the-alpha-y-retinal-ganglion-cell-population-in-the-cat
#6
Kalina Burnat, Estelle Van Der Gucht, Wioletta J Waleszczyk, Malgorzata Kossut, Lutgarde Arckens
Binocular deprivation of pattern vision (BD) early in life permanently impairs global motion perception. With the SMI-32 antibody against neurofilament protein (NFP) as a marker of the motion-sensitive Y-cell pathway (Van der Gucht et al. [2001] Cereb. Cortex 17:2805-2819), we analyzed the impact of early BD on the retinal circuitry in adult, perceptually characterized cats (Burnat et al. [2005] Neuroreport 16:751-754). In controls, large retinal ganglion cells exhibited a strong NFP signal in the soma and in the proximal parts of the dendritic arbors...
August 1, 2012: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/21688060/primary-neural-degeneration-in-the-guinea-pig-cochlea-after-reversible-noise-induced-threshold-shift
#7
Harrison W Lin, Adam C Furman, Sharon G Kujawa, M Charles Liberman
Recent work in mouse showed that acoustic overexposure can produce a rapid and irreversible loss of cochlear nerve peripheral terminals on inner hair cells (IHCs) and a slow degeneration of spiral ganglion cells, despite full recovery of cochlear thresholds and no loss of inner or outer hair cells (Kujawa and Liberman, J Neurosci 29:14077-14085, 2009). This contrasts with earlier ultrastructural work in guinea pig suggesting that acute noise-induced neural degeneration is followed by full regeneration of cochlear nerve terminals in the IHC area (Puel et al...
October 2011: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/21673605/aversive-faces-activate-pain-responsive-regions-in-the-brain
#8
Andreas Heckel, Christoph Rothmayr, Katharina Rosengarth, Göran Hajak, Mark W Greenlee, Peter Eichhammer
Recent evidence points to an overlap in the neural systems processing pain and social distress. In this functional MRI study we focus on the possible interplay between the processing of a psychosocial stressor and somatic pain within pain responsive brain regions, the latter being identified in an independent localizer experiment. A paradigm based on emotional induction (Hariri et al., 2000, Neuroreport 11(1):43-48) was combined with moderate heat pain to yield a factorial design with factor 'pain' as somatic stressor and factor 'faces' as nonpainful psychosocial stressor...
August 3, 2011: Neuroreport
https://www.readbyqxmd.com/read/21229613/reward-and-motivation-systems-a-brain-mapping-study-of-early-stage-intense-romantic-love-in-chinese-participants
#9
Xiaomeng Xu, Arthur Aron, Lucy Brown, Guikang Cao, Tingyong Feng, Xuchu Weng
Early-stage romantic love has been studied previously in the United States and United Kingdom (Aron et al. [2005]: J Neurophysiol 94:327–337; Bartels and Zeki [2000]: Neuroreport 11:3829–3834; Ortigue et al. [2007]: J Cogn Neurosci 19:1218–1230), revealing activation in the reward and motivation systems of the brain. In this study, we asked what systems are activated for early-stage romantic love in Easterners, specifically Chinese participants? Are these activations affected by individual differences within a cultural context of Traditionality and Modernity? Also, are these brain activations correlated with later satisfaction in the relationship? In Beijing, we used the same procedure used by Aron et al...
February 2011: Human Brain Mapping
https://www.readbyqxmd.com/read/21185908/immunolocalization-of-aquaporin-6-in-the-rat-retina
#10
COMPARATIVE STUDY
Ianors Iandiev, Sladjana Dukic-Stefanovic, Margrit Hollborn, Thomas Pannicke, Wolfgang Härtig, Peter Wiedemann, Andreas Reichenbach, Andreas Bringmann, Leon Kohen
Previous RT-PCR experiments revealed that the neural retina of the rat contains gene transcripts of numerous aquaporins (AQPs), including AQP6 (Tenckhoff et al., Neuroreport 16 (2005) 53-56). In the present study, we investigated the localization of AQP6 immunoreactivity in slices of the rat neural retina, and determined whether blue light injury of the retina affects the tissue distribution of this channel. AQP6 immunoreactivity was found to be selectively localized to the outer plexiform layer. Around the ribbon synapses in this layer, AQP6 labeling was co-localized with the glial water channel AQP4...
February 25, 2011: Neuroscience Letters
https://www.readbyqxmd.com/read/20373017/acidosis-induced-zinc-dependent-death-of-cultured-cerebellar-granule-neurons
#11
Nikolay K Isaev, Elena V Stelmashook, Sergey V Lukin, Dorette Freyer, Philipp Mergenthaler, Dmitry B Zorov
Severe acidosis caused death of cultured cerebellar granule neurons (CGNs). Acidosis was accompanied by a progressive increase of the intracellular zinc ions ([Zn(2+)](i)) and decrease of [Ca(2+)](i). Zn(2+) chelator, N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN), prevented the increase of [Zn(2+)](i) and acidosis-induced neuronal death. However, neuronal death was insensitive to blockade of ASIC1 channels with amiloride, as CGNs display considerably lower expression of ASIC1a than other neurons...
August 2010: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/20230845/outcome-and-view-of-the-player-modulate-motor-area-activity-during-observation-of-a-competitive-game
#12
Sotaro Shimada, Ryosuke Abe
In a previous study, we demonstrated that the mirror neuron system is involved in watching competitive games performed by multiple players [Shimada, S., & Abe, R. (2009). Modulation of the motor area activity during observation of a competitive game. NeuroReport, 20, 979-983]. In the present study, we investigated whether mirror neuron system activity was modulated by the outcome of a competitive game as well as by the spatial relationship between the player and the observer. We measured the activity of motor areas using near-infrared spectroscopy when a subject watched a two-player competitive game, rock-paper-scissors (RPS)...
June 2010: Neuropsychologia
https://www.readbyqxmd.com/read/20045677/human-visual-system-automatically-represents-large-scale-sequential-regularities
#13
Motohiro Kimura, Andreas Widmann, Erich Schröger
Our brain recordings reveal that large-scale sequential regularities defined across non-adjacent stimuli can be automatically represented in visual sensory memory. To show that, we adopted an auditory paradigm developed by Sussman, E., Ritter, W., and Vaughan, H. G. Jr. (1998). Predictability of stimulus deviance and the mismatch negativity. NeuroReport, 9, 4167-4170, Sussman, E., and Gumenyuk, V. (2005). Organization of sequential sounds in auditory memory. NeuroReport, 16, 1519-1523 to the visual domain by presenting task-irrelevant infrequent luminance-deviant stimuli (D, 20%) inserted among task-irrelevant frequent stimuli being of standard luminance (S, 80%) in randomized (randomized condition, SSSDSSSSSDSSSSD...
March 4, 2010: Brain Research
https://www.readbyqxmd.com/read/19345723/aqp4-gene-deletion-in-mice-does-not-alter-blood-brain-barrier-integrity-or-brain-morphology
#14
REVIEW
S Saadoun, M J Tait, A Reza, D Ceri Davies, B A Bell, A S Verkman, M C Papadopoulos
The glial cell water channel aquaporin-4 (AQP4) plays an important role in brain edema, astrocyte migration, and neuronal excitability. Zhou et al. [Zhou J, Kong H, Hua X, Xiao M, Ding J, Hu G (2008) Altered blood-brain barrier integrity in adult aquaporin-4 knockout mice. Neuroreport 19:1-5] recently reported that AQP4 deletion significantly altered blood-brain barrier integrity and glial fibrillary acidic protein (GFAP) immunoreactivity in their AQP4 null mice. Here we describe a detailed characterization of baseline brain properties in our AQP4 null mice, including gross appearance, neuronal, astrocyte and oligodendrocyte characteristics, and blood-brain barrier integrity...
July 7, 2009: Neuroscience
https://www.readbyqxmd.com/read/19340570/sound-induced-flash-illusion-is-resistant-to-feedback-training
#15
Orna Rosenthal, Shinsuke Shimojo, Ladan Shams
A single flash accompanied by two auditory beeps tends to be perceived as two flashes (Shams et al. Nature 408:788, 2000, Cogn Brain Res 14:147-152, 2002). This phenomenon is known as 'sound-induced flash illusion.' Previous neuroimaging studies have shown that this illusion is correlated with modulation of activity in early visual cortical areas (Arden et al. Vision Res 43(23):2469-2478, 2003; Bhattacharya et al. NeuroReport 13:1727-1730, 2002; Shams et al. NeuroReport 12(17):3849-3852, 2001, Neurosci Lett 378(2):76-81, 2005; Watkins et al...
May 2009: Brain Topography
https://www.readbyqxmd.com/read/19339057/time-discrimination-deficits-in-schizophrenia-patients-with-first-rank-passivity-symptoms
#16
COMPARATIVE STUDY
Flavie Waters, Assen Jablensky
Schizophrenia patients with first-rank (passivity) symptoms (FRS) report a loss of clear boundaries between the self and others and that their thoughts and actions are controlled by external forces. One of the more widely accepted explanatory models of FRS suggests a dysfunction in the 'forward model' system, whose role consists in predicting the sensory consequences of actions [Frith, C., 2006. The neural basis of hallucinations and delusions. Comptes Rendus Biologies 328, 169-175.]. There has been recent interest in the importance of timing precision underlying both the functioning of the forward model, and in processes contributing to the mechanisms of self-recognition [Haggard, P...
May 15, 2009: Psychiatry Research
https://www.readbyqxmd.com/read/19016610/attention-spreading-based-on-hierarchical-spatial-representations-for-connected-objects
#17
Tetsuko Kasai
Attention selects objects or groups as the most fundamental unit, and this may be achieved through a process in which attention automatically spreads throughout their entire region. Previously, we found that a lateralized potential relative to an attended hemifield at occipito-temporal electrode sites reflects attention-spreading in response to connected bilateral stimuli [Kasai, T., & Kondo, M. Electrophysiological correlates of attention-spreading in visual grouping. NeuroReport, 18, 93-98, 2007]. The present study examined the nature of object representations by manipulating the extent of grouping through connectedness, while controlling the symmetrical structure of bilateral stimuli...
January 2010: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/18798276/laminin-peptide-yigsr-and-its-receptor-regulate-sensory-axonal-response-to-the-chemoattractive-guidance-cue-in-the-chick-embryo
#18
Tomoyuki Masuda, Chie Sakuma, Kenta Kobayashi, Kazufumi Kikuchi, Emi Soda, Takashi Shiga, Kazuto Kobayashi, Hiroyuki Yaginuma
During early development, centrally projecting dorsal root ganglion (DRG) neurons extend their axons toward the dorsal spinal cord. We previously reported the involvement of dorsal spinal cord-derived chemoattraction in this projection (Masuda et al. [ 2007] Neuroreport 18:1645-1649). However, the molecular nature of this attraction is not clear. Here we show that laminin-1 (alpha1beta1gamma1) is expressed strongly along the pathway of DRG axons and that its 67-kDa receptor (67LR) is present on DRG cells. This evidence suggests that laminin-1-67LR signaling may be involved in DRG axonal guidance...
February 2009: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/18585695/cortical-processes-underlying-sound-induced-flash-fusion
#19
Jyoti Mishra, Antigona Martinez, Steven A Hillyard
When two brief flashes presented in rapid succession (<100 ms apart) are paired with a single auditory stimulus, subjects often report perceiving only a single flash [Andersen, T.S., Tiippana, K., Sams, M., 2004. Factors influencing audiovisual fission and fusion illusions. Brain Res. Cogn. Brain Res. 21, 301-308; Shams, L., Iwaki, S., Chawla, A., Bhattacharya, J., 2005a. Early modulation of visual cortex by sound: an MEG study. Neurosci. Lett. 378, 76-81, Shams, L., Ma, W.J., Beierholm, U., 2005b. Sound-induced flash illusion as an optimal percept...
November 25, 2008: Brain Research
https://www.readbyqxmd.com/read/18440662/mismatch-negativity-mmn-elicited-by-duration-deviations-in-children-with-reading-disorder-attention-deficit-or-both
#20
Tiina Huttunen-Scott, Jukka Kaartinen, Asko Tolvanen, Heikki Lyytinen
According to several studies auditory discrimination as measured by mismatch negativity (MMN) is compromised in participants with reading disorder. However, studies on duration discrimination have produced conflicting findings [Baldeweg, T., Richardson, A., Watkins, S., Foale, C., & Gruzelier, J., 1999. Impaired auditory frequency discrimination in dyslexia detected with mismatch evoked potentials. Annals of Neurology, 4, 1-9; Corbera, S., Escera, C., & Artigas, J., 2006. Impaired duration mismatch negativity in developmental dyslexia...
July 2008: International Journal of Psychophysiology
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