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.
Results
Showing 1 to 10 of 10 for “"Excitatory Postsynaptic Potentials"”.
-
A possible role for intrinsic calcium buffers in the long- term adaptation of crayfish neurons
… Procambarns clarkii. BAPTA-AM decreases excitatory postsynaptic potentials (EPSP's) of the phasic extensor muscles in a dosedependent manner between 5 and 50 JLM. LTA is elicited by in vivo stimulation at 2.5 Hz for 2-4 h per day over 3 days, which reduces EPSP's by over 50%. Experiments …
-
The role of fast-spiking interneurons in cortical map plasticity
… period of disinhibition to promote plasticity in excitatory circuits followed by a more prolonged increase in inhibition to re-establish the excitatory – inhibitory balance. These hypotheses make different predictions about how inhibition<br/>changes during cortical map plasticity, which I have …
-
Long Term Plasticity Induced by Intracellular Tetanization in the Rat Auditory Cortex
… normalization is plasticity induced by purely postsynaptic protocol, intracellular tetanization. Here we asked if intracellular tetanization can induce long-term plasticity in auditory cortex. We recorded evoked excitatory postsynaptic potentials (EPSPs) in layer 2/3 pyramidal cells in slices …
-
Calcium dynamics in dendrites and spines of spiny neurons in the somatosensory ‘barrel’ cortex of the rat
… of young (P13-P15) rats. Back-propagating action potentials (bAPs) resulted in a transient rise in Ca2+ in all dendrites and spines tested, representing a global intracellular chemical signal about the activity of the cell. In contrast, synaptically evoked excitatory postsynaptic potentials …
-
Angiotensin II modulates glutamate-induced depolarizations and synaptic transmission in rat locus coeruleus neurons in vitro.
… to depress responses to synaptically released excitatory amino acids (EAAs). In fact we were able to show that excitatory postsynaptic potentials (EPSPs) evoked by electrical stimulation were blocked by Glu receptor antagonists, indicating involvement of EAAs in the mediation of the EPSPs. …
-
Low-Frequency-Induced Synaptic Potentiation: a Paradigm Shift in the Field of Memory-Related Plasticity Mechanisms?
… results in a long-lasting potentiation of field excitatory postsynaptic potentials (fEPSPs) in CA1 of urethane-anesthetised rats (MS-H-LTP). MS-H LTP is long lasting (>5 h), requires a specific inter-stimulus interval of 1 s between MS and CA3 stimulation, saturates with repeated stimulation …
-
Short- and long-term neuronal plasticity in hippocampal CA1 region of rat
… long been used to monitor the presynaptic versus postsynaptic changes occurring during more lasting processes such as long-term potentiation and depression (LTP, LTD). Many issues remain unresolved, e.g. how PPF and PPD are related to the probabilistic features of synaptic transmission, an issue …
-
Intra- and interlaminar excitatory synaptic connections of layer 4 spiny neurons and layer 6A pyramidal cells in rat barrel cortex
… the anatomical and functional properties of excitatory synaptic connections from layer 4 to layer 6A in the rat barrel cortex by making dual whole-cell recordings with dye injection from L4 spiny neurons and L6A pyramidal cells in acute brain slices. Interlaminar monosynaptic L4-to-L6A …
-
Auditory brainstem neurons as components of a biohybrid system
… size, indicating synaptic zones. Recordings of excitatory postsynaptic potentials and APs after extracellular stimulation and recordings of miniature excitatory postsynaptic currents provided further evidence for synaptic transmission between neurons in the culture. This study demonstrates that …
-
Interaction of Quantal Inhibitory and Excitatory Neurotransmission in Regulation of Synaptic Homeostasis via Molecular Signaling
… and their properties has been done in excitatory synapses. Yet the variety of inhibitory neurons is so vast that Ramon y Cajal referred to them as the "Butterflies of the Soul." In order to help paint a more complete picture of the brain, this PhD thesis is focused on the structure, …