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	Changes in astrocytic structure in rat hippocampus evoked by activation of glutamate receptors and learning Šimonová, Zuzana ; Náměstková, Kateřina ; Vargová, Lýdia ; Syková, Eva Stimulation by NMDA application or learning alters astrocytic structure. Úplný záznam
	Biocompatible polymer hydrogels usable for nervous tissue regeneration Lesný, Petr ; DeCroos, Jane ; Přádný, Martin ; Vacík, Jiří ; Syková, Eva PHPMA hydrogel matrices have the ability to induce tissue formation within them and therefore support the regeneration of nervous tissue. Úplný záznam
	Diffusion and MRS in a rat cortex after traumatic injury Voříšek, Ivan ; Herynek, V. ; Burian, M. ; Hájek, M. ; Niclay, K. ; Syková, Eva An increase in diffusion barriers, manifestes by a decrease of both ADCTMA and ADCW, occurs throughout the entire cortex of the wounded hemisphere. These changes are related to astrogliosis and to an accumulation of extracellular matrix molecules without significant changes in ECS volume. Úplný záznam
	Suppression of 2f1-f2 distortion product otoacoustic emissions by electrical stimulation of the inferior colliculus in guinea pigs Popelář, Jiří ; Mazelová, Jana ; Syka, Josef Electrical stimulation of certain parts of the IC resulted in the depression of the DPOAE amplitude by 0.1-2 dB. The value of maximal DPOAE suppression was similar to the DPOAE suppression produced by acoustical stimulation of the contralateral ear. Our results indicate that electrical stimulation of the external cortex of the IC can activate the efferent system and produce DPOAE suppression by similar mechanisms as does acoustical stimulation of the contralateral ear. Úplný záznam
	A behavioral and electrophysiological study of the effects of noise exposure on auditory function in rat Rybalko, Natalia ; Mazelová, Jana ; Syka, Josef The values of the gap detection threshold doubled after exposure to 110 dB SPL and quadrupled after exposure to 115-120 dB SPL. GDT recovered to the original values during 1-2 weeks. Increased gap detection thresholds after noise exposure appear connected with elevated hearing thresholds, the deterioration in the performance of some animals in behavioral rasts after strong intensity noise (120 dB SPL) may signal the occurrence of tinnitus in these animals. Úplný záznam
	Representation of communication sounds in the inferior colliculus of the guinea pig Šuta, Daniel ; Kvašňák, Eugen ; Popelář, Jiří ; Syka, Josef The spectrotemporal discharge patterns of the neuronal population were clearly related to the spectrotemporal acoustic patterns of vocalization sounds.This study provides evidence for encoding of the spoctrotemporal acoustic pattern of vocalization sounds in a spcific and distributed way by the firing patterns of a population of IC units. Úplný záznam
	Functional characteristics of neurons in the auditory thalamus Kvašňák, Eugen ; Šuta, Daniel ; Popelář, Jiří ; Syka, Josef The MGB, is similarly as the inferior colliculus (IC) is organized into three subdivisions, with the ventral MGB characterized by the quickest onset reaction with the lowest thresholds to auditory stimulation and with the same ratio of monotonic and non-monotonic RLFs. Úplný záznam
	NADPH-d - positive neurons in the auditory cortex of young and very old rats Nwabueze-Ogbo, Fidel Chijoke ; Druga, R. ; Syka, Josef In young and very old animals stained neurons were localized in layers II-VI and in the subcortical white matter. A significantly higher packing density of labeled supragranular layers. In very old animals the thickness of the auditory cortex and the neuronal density was reduced when compared to the young. Úplný záznam
	Peripheral and central changes of the auditory system in the elderly Mazelová, Jana ; Popelář, Jiří ; Valvoda, Jaroslav ; Syka, Josef We compared the hearing abilities of 15 elderly subjects with a group of 15 young normal hearing. The results of this study support the opinion of many other suthors that the problems of aged people do not result ohly from elevated audiometric thresholds, but also from processes of central oring. Úplný záznam
	Interaction between descending and ascending pathways in the auditory system Syka, Josef Inactivation of the AC resulted in changes in the latency and amplitude of some parts of click-evoked IC responses and in either an increase or decrease in the firing rate of IC neurons in comparison with normal control conditions. The interaction of ascending and descending pathways in the auditory system may contribute to better frequency tuning, suppression of non-relevant acoustical signals and concentration of our attention on specific signals (for example the voice of the speaker.) Úplný záznam

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