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Ralph Freeman

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

Research Profile (preview)

Anatomy

Living Beings

Cats

Procedures

Physiology

Concepts & Ideas

Occupations

Electrophysiology

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Co-Publications
Name
34
Ohzawa, Izumi
15
DeAngelis, GC
8
Anzai, A
8
Peterson, Matthew
6
Li, Baowang
5
Thompson, Jeffrey
4
Walker, Gary
4
Duong, Thang
3
Ghose, GM
3
Casanova, Christian
3
Menz, Michael
3
Pasley, Brian
2
Robson, John

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Publications

TOP 3
Pasley Brian N; Allen Elena A; Freeman Ralph D
State-dependent variability of neuronal responses to transcranial magnetic stimulation of the visual cortex.
Duong Thang; Freeman Ralph D
Contrast sensitivity is enhanced by expansive nonlinear processing in the lateral geniculate nucleus.
Viswanathan Ahalya; Freeman Ralph D
Neurometabolic coupling in cerebral cortex reflects synaptic more than spiking activity.

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All Publications

2009: Pasley Brian N; Allen Elena A; Freeman Ralph D
State-dependent variability of neuronal responses to transcranial magnetic stimulation of the visual cortex.
Neuron 2009;62(2):291-303.
2008: Duong Thang; Freeman Ralph D
Contrast sensitivity is enhanced by expansive nonlinear processing in the lateral geniculate nucleus.
Journal of neurophysiology 2008;99(1):367-72.
2007: Viswanathan Ahalya; Freeman Ralph D
Neurometabolic coupling in cerebral cortex reflects synaptic more than spiking activity.
Nature neuroscience 2007;10(10):1308-12.
2007: Allen Elena A; Pasley Brian N; Duong Thang; Freeman Ralph D
Transcranial magnetic stimulation elicits coupled neural and hemodynamic consequences.
Science (New York, N.Y.) 2007;317(5846):1918-21.
2007: Li Baowang; Freeman Ralph D
High-resolution neurometabolic coupling in the lateral geniculate nucleus.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2007;27(38):10223-9.
2007: Pasley Brian N; Inglis Ben A; Freeman Ralph D
Analysis of oxygen metabolism implies a neural origin for the negative BOLD response in human visual cortex.
NeuroImage 2007;36(2):269-76.
2006: Allen Elena A; Freeman Ralph D
Dynamic spatial processing originates in early visual pathways.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2006;26(45):11763-74.
2006: Li Baowang; Thompson Jeffrey K; Duong Thang; Peterson Matthew R; Freeman Ralph D
Origins of cross-orientation suppression in the visual cortex.
Journal of neurophysiology 2006;96(4):1755-64.
2006: Peterson Matthew R; Li Baowang; Freeman Ralph D
Direction selectivity of neurons in the striate cortex increases as stimulus contrast is decreased.
Journal of neurophysiology 2006;95(4):2705-12.
2005: Thompson Jeffrey K; Peterson Matthew R; Freeman Ralph D
Separate spatial scales determine neural activity-dependent changes in tissue oxygen within central visual pathways.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2005;25(39):9046-58.
2005: Li Baowang; Peterson Matthew R; Thompson Jeffrey K; Duong Thang; Freeman Ralph D
Cross-orientation suppression: monoptic and dichoptic mechanisms are different.
Journal of neurophysiology 2005;94(2):1645-50.
2004: Thompson Jeffrey K; Peterson Matthew R; Freeman Ralph D
High-resolution neurometabolic coupling revealed by focal activation of visual neurons.
Nature neuroscience 2004;7(9):919-20.
2004: Peterson Matthew R; Li Baowang; Freeman Ralph D
The derivation of direction selectivity in the striate cortex.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2004;24(14):3583-91.
2004: Menz Michael D; Freeman Ralph D
Functional connectivity of disparity-tuned neurons in the visual cortex.
Journal of neurophysiology 2004;91(4):1794-807.
2004: Menz Michael D; Freeman Ralph D
Temporal dynamics of binocular disparity processing in the central visual pathway.
Journal of neurophysiology 2004;91(4):1782-93.
2003: Li Baowang; Peterson Matthew R; Freeman Ralph D
Oblique effect: a neural basis in the visual cortex.
Journal of neurophysiology 2003;90(1):204-17.
2003: Thompson Jeffrey K; Peterson Matthew R; Freeman Ralph D
Single-neuron activity and tissue oxygenation in the cerebral cortex.
Science (New York, N.Y.) 2003;299(5609):1070-2.
2003: Menz Michael D; Freeman Ralph D
Stereoscopic depth processing in the visual cortex: a coarse-to-fine mechanism.
Nature neuroscience 2003;6(1):59-65.
2003: Freeman Ralph D
Cortical columns: a multi-parameter examination.
Cerebral cortex (New York, N.Y. : 1991) 2003;13(1):70-2.
2002: Walker Gary A; Ohzawa Izumi; Freeman Ralph D
Disinhibition outside receptive fields in the visual cortex.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2002;22(13):5659-68.
2001: Anzai A; Ohzawa I; Freeman R D
Joint-encoding of motion and depth by visual cortical neurons: neural basis of the Pulfrich effect.
Nature neuroscience 2001;4(5):513-8.
2001: Freeman R D; Ohzawa I; Walker G
Beyond the classical receptive field in the visual cortex.
Progress in brain research 2001;134():157-70.
2000: Walker G A; Ohzawa I; Freeman R D
Suppression outside the classical cortical receptive field.
Visual neuroscience 2000;17(3):369-79.
2000: Truchard A M; Ohzawa I; Freeman R D
Contrast gain control in the visual cortex: monocular versus binocular mechanisms.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2000;20(8):3017-32.
1999: Walker G A; Ohzawa I; Freeman R D
Asymmetric suppression outside the classical receptive field of the visual cortex.
The Journal of neuroscience : the official journal of the Society for Neuroscience 1999;19(23):10536-53.
1999: Gardner J L; Anzai A; Ohzawa I; Freeman R D
Linear and nonlinear contributions to orientation tuning of simple cells in the cat's striate cortex.
Visual neuroscience 1999;16(6):1115-21.
1999: Freeman R D
Stereoscopic vision: Which parts of the brain are involved?
Current biology : CB 1999;9(16):R610-3.
1999: Anzai A; Ohzawa I; Freeman R D
Neural mechanisms for processing binocular information II. Complex cells.
Journal of neurophysiology 1999;82(2):909-24.
1999: Anzai A; Ohzawa I; Freeman R D
Neural mechanisms for processing binocular information I. Simple cells.
Journal of neurophysiology 1999;82(2):891-908.
1999: Anzai A; Ohzawa I; Freeman R D
Neural mechanisms for encoding binocular disparity: receptive field position versus phase.
Journal of neurophysiology 1999;82(2):874-90.
1999: DeAngelis G C; Ghose G M; Ohzawa I; Freeman R D
Functional micro-organization of primary visual cortex: receptive field analysis of nearby neurons.
The Journal of neuroscience : the official journal of the Society for Neuroscience 1999;19(10):4046-64.
1998: Walker G A; Ohzawa I; Freeman R D
Binocular cross-orientation suppression in the cat's striate cortex.
Journal of neurophysiology 1998;79(1):227-39.
1997: Ghose G M; Freeman R D
Intracortical connections are not required for oscillatory activity in the visual cortex.
Visual neuroscience 1997;14(6):963R-979R.
1997: Ghose G M; Freeman R D
Intracortical connections are not required for oscillatory activity in the visual cortex.
Visual neuroscience 1997;14(5):963-79.
1997: Cai D; DeAngelis G C; Freeman R D
Spatiotemporal receptive field organization in the lateral geniculate nucleus of cats and kittens.
Journal of neurophysiology 1997;78(2):1045-61.
1997: Ohzawa I; DeAngelis G C; Freeman R D
Encoding of binocular disparity by complex cells in the cat's visual cortex.
Journal of neurophysiology 1997;77(6):2879-909.
1997: Anzai A; Ohzawa I; Freeman R D
Neural mechanisms underlying binocular fusion and stereopsis: position vs. phase.
Proceedings of the National Academy of Sciences of the United States of America 1997;94(10):5438-43.
1997: Ohzawa I; DeAngelis G C; Freeman R D
The neural coding of stereoscopic depth.
Neuroreport 1997;8(3):iii-xii.
1996: Green E S; DeAngelis G C; Freeman R D
Development of inhibitory mechanisms in the kitten's visual cortex.
Visual neuroscience 1996;13(6):1109-17.
1996: Ohzawa I; DeAngelis G C; Freeman R D
Encoding of binocular disparity by simple cells in the cat's visual cortex.
Journal of neurophysiology 1996;75(5):1779-805.
1996: Freeman R D
Studies of functional connectivity in the developing and mature visual cortex.
Journal of physiology, Paris 1996;90(3-4):199-203.
1995: Ghose G M; Ohzawa I; Freeman R D
A flexible PC-based physiological monitor for animal experiments.
Journal of neuroscience methods 1995;62(1-2):7-13.
1995: DeAngelis G C; Ohzawa I; Freeman R D
Receptive-field dynamics in the central visual pathways.
Trends in neurosciences 1995;18(10):451-8.
1995: DeAngelis G C; Anzai A; Ohzawa I; Freeman R D
Receptive field structure in the visual cortex: does selective stimulation induce plasticity?
Proceedings of the National Academy of Sciences of the United States of America 1995;92(21):9682-6.
1995: Anzai A; Bearse M A; Freeman R D; Cai D
Contrast coding by cells in the cat's striate cortex: monocular vs. binocular detection.
Visual neuroscience 1995;12(1):77-93.
1995: DeAngelis G C; Ohzawa I; Freeman R D
Neuronal mechanisms underlying stereopsis: how do simple cells in the visual cortex encode binocular disparity?
Perception 1995;24(1):3-31.
1994: Ghose G M; Freeman R D; Ohzawa I
Local intracortical connections in the cat's visual cortex: postnatal development and plasticity.
Journal of neurophysiology 1994;72(3):1290-303.
1994: DeAngelis G C; Freeman R D; Ohzawa I
Length and width tuning of neurons in the cat's primary visual cortex.
Journal of neurophysiology 1994;71(1):347-74.
1994: Ghose G M; Ohzawa I; Freeman R D
Receptive-field maps of correlated discharge between pairs of neurons in the cat's visual cortex.
Journal of neurophysiology 1994;71(1):330-46.
1994: Bearse M A; Freeman R D
Binocular summation in orientation discrimination depends on stimulus contrast and duration.
Vision research 1994;34(1):19-29.
1993: DeAngelis G C; Ohzawa I; Freeman R D
Spatiotemporal organization of simple-cell receptive fields in the cat's striate cortex. II. Linearity of temporal and spatial summation.
Journal of neurophysiology 1993;69(4):1118-35.
1993: DeAngelis G C; Ohzawa I; Freeman R D
Spatiotemporal organization of simple-cell receptive fields in the cat's striate cortex. I. General characteristics and postnatal development.
Journal of neurophysiology 1993;69(4):1091-117.
1992: Freeman R D; Ohzawa I
Development of binocular vision in the kitten's striate cortex.
The Journal of neuroscience : the official journal of the Society for Neuroscience 1992;12(12):4721-36.
1992: Ghose G M; Freeman R D
Oscillatory discharge in the visual system: does it have a functional role?
Journal of neurophysiology 1992;68(5):1558-74.
1992: Casanova C; Nordmann J P; Ohzawa I; Freeman R D
Direction selectivity of cells in the cat's striate cortex: differences between bar and grating stimuli.
Visual neuroscience 1992;9(5):505-13.
1992: Nordmann J P; Freeman R D; Casanova C
Contrast sensitivity in amblyopia: masking effects of noise.
Investigative ophthalmology & visual science 1992;33(10):2975-85.
1992: DeAngelis G C; Robson J G; Ohzawa I; Freeman R D
Organization of suppression in receptive fields of neurons in cat visual cortex.
Journal of neurophysiology 1992;68(1):144-63.
1991: DeAngelis G C; Ohzawa I; Freeman R D
Depth is encoded in the visual cortex by a specialized receptive field structure.
Nature 1991;352(6331):156-9.
1990: Ohzawa I; DeAngelis G C; Freeman R D
Stereoscopic depth discrimination in the visual cortex: neurons ideally suited as disparity detectors.
Science (New York, N.Y.) 1990;249(4972):1037-41.
1990: Freeman R D; Ohzawa I
On the neurophysiological organization of binocular vision.
Vision research 1990;30(11):1661-76.
1989: Casanova C; Freeman R D; Nordmann J P
Monocular and binocular response properties of cells in the striate-recipient zone of the cat's lateral posterior-pulvinar complex.
Journal of neurophysiology 1989;62(2):544-57.
1989: Paradiso M A; Carney T; Freeman R D
Cortical processing of hyperacuity tasks.
Vision research 1989;29(2):247-54.
1989: Carney T; Paradiso M A; Freeman R D
A physiological correlate of the Pulfrich effect in cortical neurons of the cat.
Vision research 1989;29(2):155-65.
1988: Ohzawa I; Freeman R D
Binocularly deprived cats: binocular tests of cortical cells show regular patterns of interaction.
The Journal of neuroscience : the official journal of the Society for Neuroscience 1988;8(7):2507-16.
1988: Freeman R D; Ohzawa I
Monocularly deprived cats: binocular tests of cortical cells reveal functional connections from the deprived eye.
The Journal of neuroscience : the official journal of the Society for Neuroscience 1988;8(7):2491-506.
1988: Xue J T; Carney T; Ramoa A S; Freeman R D
Binocular interaction in the perigeniculate nucleus of the cat.
Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale 1988;69(3):497-508.
1988: Ohzawa I; Freeman R D
Cyclopean visual evoked potentials: a new test of binocular vision.
Vision research 1988;28(10):1167-70.
1988: Ramoa A S; Paradiso M A; Freeman R D
Blockade of intracortical inhibition in kitten striate cortex: effects on receptive field properties and associated loss of ocular dominance plasticity.
Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale 1988;73(2):285-96.
1988: Robson J G; Tolhurst D J; Freeman R D; Ohzawa I
Simple cells in the visual cortex of the cat can be narrowly tuned for spatial frequency.
Visual neuroscience 1988;1(4):415-9.
1987: Xue J T; Ramoa A S; Carney T; Freeman R D
Binocular interaction in the dorsal lateral geniculate nucleus of the cat.
Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale 1987;68(2):305-10.

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