Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 179 for “"thalamus"”.
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Associative learning in auditory thalamus and amygdala
… the roles the medial geniculate nucleus of the thalamus (MGN) and basolateral amygdala (BLA) play in the formation of associative learning, many open questions remain. MGN is often thought of as only contributing relayed sensory information, and BLA the primary site of importance for the …
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Functional role of neurotransmitters in the visual thalamus
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1991.
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Mediodorsal thalamus contributes to the timing of instrumental actions
… evidence emphasizing the integrative role of the thalamus in cognition, its contribution to timing behavior is poorly understood. Anatomically connected to brain regions within the canonical timing network such as the prefrontal cortex, amygdala, and striatum, the mediodorsal (MD) nucleus of the …
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Mechanisms underlying retinogeniculate synapse formation in mouse visual thalamus
… of retinal convergence onto dLGN relay cells in thalamus and the functional significance of this convergence for vision.
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Anteromedial Thalamus Gates the Selection & Stabilization of Long-Term Memories
… neural correlate of memory in anterior thalamus that emerged in training and persisted for weeks. Inhibition of the anteromedial thalamus to anterior cingulate cortex projections during training resulted in substantial memory consolidation deficits, whereas excitation of the same …
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Hippocampal modulation of cingulate cortex and limbic thalamus during learning
A characteristic of the cingulo-thalamic or the subicular thalamic pathway had been investigated during the discriminative avoidance conditioning in which a CR of stepping in an activity wheel prevents a footshock 5 sec. after an auditory CS+. Enhanced neuronal discharges in the mediodorsal (MDN) …
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Pathologische Veränderungen im Thalamus in einem Tiermodell für die Alzheimer-Krankheit
… zu intraneuronalen Aβ untersucht. Dazu wurde der Thalamus von APP/PS1KI-Mäusen stereologisch untersucht, in dem Plaques vorkommen, aber kein intraneuronales Aβ. Zum Vergleich wurde in einer parallel erstellten Promotionsarbeit (verfasst von Sophie Kraus) der Kortex derselben Mäuse untersucht, in …
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Role of retinal inputs and astrocytes for the development of visual thalamus
… regions in the brain. In rodents, visual thalamus receives dense innervations from RGC axons and is important for both image-forming and nonimage-forming visual functions. Retinal inputs invade visual thalamus during embryonic development, before the arrival of non-retinal inputs (such as …
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ms-Scale temporal coding in the thalamus predicted by whisker dispersive vibrational transduction
… from multielectrode array placed in the mouse thalamus (VPMdm), while simultaneously recording vibrations at the whisker tip. We discovered that firing of 99 VPMdm neurons across 8 animals is triggered by high-frequency vibrations with jitters below 0.4ms. Some of these VPMdm neurons with short …
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Neural activity in the posterior thalamus and hippocampus during time interval discrimination in rats
… from the dorsal CA1 of hippocampus and posterior thalamus in the same rats performing a temporal discrimination task. In this task, the animals were required to discriminate six randomly presented time interval durations ranging from 3018 to 4784 ms into short or long ones to obtain water reward. …
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The distribution of fibers from amygdala, thalamus and cortex within the striatum of the cat
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Science, 1988.
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Long-range synchrony between medial prefrontal cortex, thalamus and hippocampus underlies working memory behavior in mice.
… the hippocampus (HPC) and the medial dorsal thalamus (MD). Lesion and electrophysiological studies in each structure have demonstrated their importance during working memory behavior. Disconnection studies also show that the coordination between the mPFC and either the HPC or MD is important …
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Interactions between anterior thalamus and hippocampus during different behavioral states in the rat by Héctor Penagos.
The anterior thalamus and hippocampus are part of an extended network of brain structures underlying cognitive functions such as episodic memory and spatial navigation. Earlier work in rodents has demonstrated that hippocampal cell ensembles re-express firing profiles associated with previously …
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Experimental retinal projections to the Ferret auditory thalamus : morphology, development and effects on auditory cortical organization
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1997.
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NEURAL CORRELATES OF RANDOM AND INFORMED SACCADIC CHOICES IN THE MACAQUE FRONTAL EYE FIELDS AND CENTRAL THALAMUS
The motor thalamus (OcTh) constitutes the penultimate synapse of a putative oculomotor feedback loop that originates in and returns to the frontal eye fields (FEF). To examine how this circuit may contribute to saccade target selection, neural correlates of perceptual judgment and motor choice were …
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Information Processing in the Auditory Thalamus of the Echolocating Bat, Myotis Lucifugus: Implications for Fluttering Target Detection
The inability of the auditory system to process temporal cues can lead to deficits in speech recognition that can ultimately lead to learning and/or behavioral disorders. Therefore it is important to understand the mechanisms by which the auditory system processes time-varying signals. Echolocating …
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