Robert U. Muller

The Journal of General Physiology Representation of Objects in Space by Two Classes of Hippocampal (2008)

Pyramidal Cells, Bruno Rivard, Yu Li, Robert U. Muller, Bruno Poucet

abstract Humans can recognize and navigate in a room when its contents have been rearranged. Rats also adapt rapidly to movements of objects in a familiar environment. We therefore set out to...

Conjoint Control of Hippocampal Place Cell Firing by Two Visual Stimuli I. The Effects of Moving the Stimuli on Firing Field Positions (2008)

André A. Fenton, Gyorgy Csizmadia, Robert U. Muller

abstract To better understand how hippocampal place cell activity is controlled by sensory stimuli, and to further elucidate the nature of the environmental representation provided by place cells, we...

Deforming the hippocampal map (2005)

David S. Touretzky, Wendy E. Weisman, Mark C. Fuhs, William E. Skaggs, Andre A. Fenton, Robert U. Muller

ABSTRACT: To investigate conjoint stimulus control over place cells, Fenton et al. (J Gen Physiol 116:191–209, 2000a) recorded while rats foraged in a cylinder with 45 ° black and white cue cards...

Passive Movements of the Head Do Not Abolish Anticipatory Firing Properties of Head Direction Cells (2004)

Joshua P. Bassett, Michaël B. Zugaro, Gary M. Muir, Edward J. Golob, Robert U. Muller, Jeffrey S. Taube, ...

of the head do not abolish anticipatory firing properties of head direction cells. J Neurophysiol 93: 1304–1316, 2005. First published October 6, 2004; doi:10.1152/jn.00490.2004. Neurons in the...

Parallel instabilities of long-term potentiation, place cells, and learning caused by decreased protein kinase A activity (2000)

Er Rotenberg, Ted Abel, Robert D. Hawkins, Eric R. K, Robert U. Muller

To further elucidate the links among synaptic plasticity, hippocampal place cells, and spatial memory, place cells were recorded from wild-type mice and transgenic “R(AB) ” mice with reduced...

Place cell discharge is extremely variable during individual passes of the rat through the firing field

Fenton, André A., Muller, Robert U.

The idea that the rat hippocampus stores a map of space is based on the existence of “place cells” that show “location-specific” firing. The discharge of place cells is confined with...

The Electrostatic Basis of Mg++ Inhibition of Transmitter Release

Muller, Robert U., Finkelstein, Alan

The inhibition by Mg++ of stimulus-evoked transmitter release is attributed to a decrease in surface potential, Ψ0, on the outer surface of the presynaptic terminal and hence a lower surface calcium...

Defective place cell activity in nociceptin receptor knockout mice with elevated NMDA receptor-dependent long-term potentiation

Taverna, Franco A, Georgiou, John, McDonald, Robert J, Hong, Nancy S, Kraev, Alexander, Salter, Michael W, ...

There is growing evidence that NMDA receptor-dependent long-term potentiation (LTP) in the hippocampus mediates the synaptic plasticity that underlies spatial learning and memory. LTP deficiencies...

Place cell discharge is extremely variable during individual passes of the rat through the firing field

Fenton, André A., Muller, Robert U.

The idea that the rat hippocampus stores a map of space is based on the existence of “place cells” that show “location-specific” firing. The discharge of place cells is confined with...

The Electrostatic Basis of Mg++ Inhibition of Transmitter Release

Muller, Robert U., Finkelstein, Alan

The inhibition by Mg++ of stimulus-evoked transmitter release is attributed to a decrease in surface potential, Ψ0, on the outer surface of the presynaptic terminal and hence a lower surface calcium...

Defective place cell activity in nociceptin receptor knockout mice with elevated NMDA receptor-dependent long-term potentiation

Taverna, Franco A, Georgiou, John, McDonald, Robert J, Hong, Nancy S, Kraev, Alexander, Salter, Michael W, ...

There is growing evidence that NMDA receptor-dependent long-term potentiation (LTP) in the hippocampus mediates the synaptic plasticity that underlies spatial learning and memory. LTP deficiencies...

Representation of Objects in Space by Two Classes of Hippocampal Pyramidal Cells

Rivard, Bruno, Li, Yu, Lenck-Santini, Pierre-Pascal, Poucet, Bruno, Muller, Robert U.

Humans can recognize and navigate in a room when its contents have been rearranged. Rats also adapt rapidly to movements of objects in a familiar environment. We therefore set out to investigate the...

Non-ionotropic cross-talk between AMPA and NMDA receptors in rodent hippocampal neurones

Bai, Donglin, Muller, Robert U, Roder, John C

Many fast excitatory synapses in the hippocampus are enriched with both AMPARs (α-amino-3-hydroxyl-5-methyl-4-isoxazolepropionate receptors) and NMDARs (N-methyl-d-aspartate receptors). Their...

The Effect of Surface Charge on the Voltage-Dependent Conductance Induced in Thin Lipid Membranes by Monazomycin

Muller, Robert U., Finkelstein, Alan

Differences in the behavior of phosphatidylethanolamine (PE) and phosphatidylglycerol (PG) thin lipid membranes treated with monazomycin are shown to be due to the negative surface charge on PG...

Voltage-Dependent Conductance Induced in Thin Lipid Membranes by Monazomycin

Muller, Robert U., Finkelstein, Alan

When present in micromolar amounts on one side of phospholipid bilayer membranes, monazomycin (a positively charged, polyene-like antibiotic) induces dramatic voltage-dependent conductance effects....

Conjoint Control of Hippocampal Place Cell Firing by Two Visual Stimuli: II. a Vector-Field Theory That Predicts Modifications of the Representation of the Environment

Fenton, André A., Csizmadia, Gyorgy, Muller, Robert U.

Changing the angular separation between two visual stimuli attached to the wall of a recording cylinder causes the firing fields of place cells to move relative to each other, as though the...

Conjoint Control of Hippocampal Place Cell Firing by Two Visual Stimuli: I. the Effects of Moving the Stimuli on Firing Field Positions

Fenton, André A., Csizmadia, Gyorgy, Muller, Robert U.

To better understand how hippocampal place cell activity is controlled by sensory stimuli, and to further elucidate the nature of the environmental representation provided by place cells, we have...