1997
Axotomy Increases the Excitability of Dorsal Root Ganglion Cells With Unmyelinated Axons
Zhang J, Donnelly D, Song X, Lamotte R. Axotomy Increases the Excitability of Dorsal Root Ganglion Cells With Unmyelinated Axons. Journal Of Neurophysiology 1997, 78: 2790-2794. PMID: 9356426, DOI: 10.1152/jn.1997.78.5.2790.Peer-Reviewed Original ResearchConceptsDorsal root gangliaUnmyelinated axonsRoot gangliaSodium currentTTX-sensitive sodium currentWhole-cell patch-clamp recordingsCell patch-clamp recordingsDorsal root ganglion cellsTTX-resistant currentC cellsEffects of axotomyAction potential thresholdPatch-clamp recordingsAction potential durationNeuropathic painVoltage-clamp conditionsPeak sodium currentDRG cellsGanglion cellsSoma sizeFast BlueNerve fibersConduction velocityAxotomyPotential duration
1994
Cutaneous neural codes for shape
LaMotte R, Srinivasan M, Lu C, Klusch-Petersen A. Cutaneous neural codes for shape. Canadian Journal Of Physiology And Pharmacology 1994, 72: 498-505. PMID: 7954079, DOI: 10.1139/y94-073.Peer-Reviewed Original Research
1993
Responses of cutaneous mechanoreceptors to the shape of objects applied to the primate fingerpad
LaMotte R, Srinivasan M. Responses of cutaneous mechanoreceptors to the shape of objects applied to the primate fingerpad. Acta Psychologica 1993, 84: 41-51. PMID: 8237455, DOI: 10.1016/0001-6918(93)90071-x.Peer-Reviewed Original Research
1991
Neurogenic hyperalgesia: psychophysical studies of underlying mechanisms
LaMotte R, Shain C, Simone D, Tsai E. Neurogenic hyperalgesia: psychophysical studies of underlying mechanisms. Journal Of Neurophysiology 1991, 66: 190-211. PMID: 1919666, DOI: 10.1152/jn.1991.66.1.190.Peer-Reviewed Original ResearchConceptsInjection of capsaicinMechanical hyperalgesiaNerve fibersInjection siteAlgesic substancesPrimary afferent nerve fibersArea of tendernessCapsaicin injection siteMicrograms of capsaicinNociceptive nerve fibersPeripheral neural activityArea of hyperalgesiaCutaneous nerve fibersAfferent nerve fibersMagnitude of painSingle intradermal injectionNeural activityArea of analgesiaSite of injuryLarger mean areaAnesthetized skinNeurogenic hyperalgesiaCutaneous anesthesiaIntradermal injectionPainful stimuli
1988
Chapter 39 Psychophysical and neurophysiological studies of chemically induced cutaneous pain and itch The case of the missing nociceptor
LaMotte R. Chapter 39 Psychophysical and neurophysiological studies of chemically induced cutaneous pain and itch The case of the missing nociceptor. Progress In Brain Research 1988, 74: 331-335. PMID: 3187041, DOI: 10.1016/s0079-6123(08)63033-2.Peer-Reviewed Original ResearchConceptsCutaneous painInjection siteNeurophysiological studiesPeripheral nerve fibersSensation of painCapsaicin painInjection painMechanical hyperesthesiaHeat hyperalgesiaHeat nociceptorsIntradermal injectionCutaneous receptorsNerve fibersHistamine dihydrochloridePainNociceptorsCapsaicinGreater painItchAllodyniaHyperesthesiaFurther investigationCandidate mechanismInjectionSensation
1986
Tactile detection of a dot on a smooth surface: peripheral neural events
LaMotte R, Whitehouse J. Tactile detection of a dot on a smooth surface: peripheral neural events. Journal Of Neurophysiology 1986, 56: 1109-1128. PMID: 3097273, DOI: 10.1152/jn.1986.56.4.1109.Peer-Reviewed Original ResearchConceptsNumber of impulsesVon Frey filamentsPeripheral nerve fibersAnesthetized macaque monkeysReceptive fieldsFiber recordingsNerve fibersMacaque monkeysAction potentialsCertain stimulus conditionsNerve impulsesMagnitude of sensationTactile detectionSensory magnitudeStimulus conditionsResponse of RACapacity of humansSensory detectionNeural eventsMechanical eventsMonkeysSame stimuliSkinSensationRA
1979
Intensive and Temporal Determinants of Thermal Pain
LaMotte R. Intensive and Temporal Determinants of Thermal Pain. 1979, 327-361. DOI: 10.1007/978-1-4613-3039-4_18.Peer-Reviewed Original ResearchMagnitude of painNociceptive afferentsNoxious stimulationNeural activityPeripheral afferent nerve fibersAfferent nerve fibersHeat-sensitive nociceptorsPain sensationPeripheral nervesConscious humansNerve fibersPainThermal painDistal endingsAfferentsNeural determinantsThreat of injuryStimulus temperatureNociceptorsStimulationInjuryReceptive fieldsSkinTemporal determinantsPsychophysical studies