Gustatory Nerve Impulses in Rat, Cat and Rabbit

Pfaffmann, Carl

doi:10.1152/jn.1955.18.5.429

Cited by 278 publications

(128 citation statements)

References 0 publications

Supporting

Mentioning

114

Contrasting

Unclassified

Order By: Relevance

“…The intensity of the stimulus is proportional to the total numer of spikes in the entire AFP, while taste quality is coded by the differences among single-fiber spike frequencies. These differences constitute a profile which is specific for a certain quality [5,6,32]. A significant relation has been found between behavioral measures of taste quality and the AFP [14,37].…”

Section: Discussionmentioning

confidence: 97%

“…A significant relation has been found between behavioral measures of taste quality and the AFP [14,37]. The AFP-theory is based upon the fact that a certain fiber responds to a variety of compounds [31,32]. Responding of the same unit to NaC1 as well as to sucrose does not contradict the independency of their binding mechanisms, since independent sites for sucrose and NaCI can be located at the same receptor cell.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Masking and adaptation of sugar sweetness intensity

Kroeze

1979

Physiology & Behavior

View full text Add to dashboard Cite

KROEZE, J. H. A.Masking and adaptation of sugar sweetness intensity. PHYSIOL. BEHAV. 22(2) 347-351, 1979.-Subjects indicated the sweetness of solutions of sucrose and a mixture of sucrose and sodium chloride by means of magnitude scaling. The adapting effects of sucrose, sodium chloride and a mixture of both substances were investigated. The stimuli were delivered by a flow system to pre-defined tongue areas. Following adaptation to sucrose and to the mixture the subjective intensity of sugar sweetness decreased 54.2% and 54.6% respectively: these differences are statistically significant. Also a significant masking effect of sodium chloride was observed (87.9% reduction). No indications of cross-adaptation were found. The results were interpreted in favour of the independency of adaptation and masking.

show abstract

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Masking and adaptation of sugar sweetness intensity

Kroeze

1979

Physiology & Behavior

View full text Add to dashboard Cite

show abstract

“…Suppression by Na salts has already been observed in taste receptors in vertebrates: in fish (KONISHI, 1966), in frog (ZOTTERMAN, 1949;ANDERSON and ZOTTERMAN, 1950;KUSANO and SATO, 1957;SATO and KUSANO, 1960;YAMASHITA, 1963), and in mammals (PFAFFMANN, 1941;COHEN et al, 1955;PFAFFMANN, 1955). These results have been described as the effect of water, and the afferent fibers concerned are usually called water fibers.…”

Section: Other Chemicalsmentioning

confidence: 95%

Chemoreception of the Lateral-Line Organ of an Aquatic Amphibian, Xenopus Laevis

Onoda

Katsuki

1972

Jpn.J.Physiol

View full text Add to dashboard Cite

Summary The lateral-line organ of Xenopus laevis was studied by recording responses from its afferent nerve fiber. The firing rate was registered with the aid of an electronic rate meter. 1. The firing rate was remarkably increased by stimulation with KCl and NH4Cl. 2. Sodium salts (except for Na-glutamate) suppressed both the spontaneous activity and responses to other cations. Na-glutamate did not show the suppressive effect at all. 3. Salts of divalent cations, CaCl2, and MgCl2, increased the firing rate, in contrast to the results obtained with fish, where they suppressed the responses to monovalent cations. 4. The discharge pattern from all the afferent fibers examined was quite uniform, so that the fibers could not be separated by response patterns into different groups. 5. Neither tetrodotoxin nor Mn++ suppressed the responses to solutions of salts, including those of Ca++. 6. Sucrose and quinine produced no remarkable effects, in contrast to the effects produced on the gustatory organs. 7. Dihydrostreptomycin sulfate (SM) suppressed both mechano-and chemoreception. 8. Along with serving as a mechanoreceptor, the lateral-line organ of Xenopus probably functions as an external chemosensory organ in detecting ions in the environment.Based on morphological and physiological studies, the lateral-line organ of aquatic vertebrates has been believed to be a mechanoreceptor (KATSUKI et al.,

show abstract

“…The reasons for assuming this re1ationship are discussed in the appendix. The method was origina11y used in the study of periphera1 nerve responses (Beid1er, 1953;Pfaffmann, 1955) and subsequent1y app1ied to the study of ce11 population responses within the central nervous system (Arduini and Pinneo, 1963;Sch1ag and Ba1vin, 1963). In sorne of the studies discussed be10w (Starr and Livingston, 1963;Ga1en, 1965) a wider pass band is used, so that 10w frequency signa1s, (inc1uding conventiona1 EEG frequencies) are inc1uded in the integration.…”

Section: Measures Of Tonie Activitymentioning

confidence: 99%

“…Severa1 aspects of this work e1ucidate both the functiona1 significance of population discharge rates in genera1, as we11 as the effects of motivationa1 variables on sensory processes. The technique was first used for recording chorda tympani responses to gttsBstory stimulation (Beid1er, 1953;Pfaffmann, 1955), and was subsequent1y adapted for recording activity from a variety of sensory systems and from the central nervous system, in anesthetized Qr awake, immobi1ised (Arduini and Pinneo, 1963) and free1y moving (Starr and Livingston, 1963, Benoit, 1964, Weber and Buchwa1d, 1965 cat preparations. These studies have provided information about the nature of olfactory, visua1 and audit ory processes which has not been readi1y avai1ab1e using other techniques.…”

Section: Mu1ti-unit Measures and Sens Ory Systemsmentioning

confidence: 99%

The role of tonic neural activity in motivational processes

Bambridge

Gijsbers

1977

Experimental Neurology

View full text Add to dashboard Cite

Ph.D. Psycho10gyRichard Bambridge THE ROLE OF TONIC NEURAL ACTIVITY IN MOTIVATIONAL PROCESSESThe mu1ti-unit recording technique was used to study the activity of neuron populations in various brain locations in cats during long, natura1 behaviour sequences in a free behavioura1 situation. E1ectroen-cepha10graphic (EEG) records were a1so obtained from each recording site. The total mu1ti-unit activity 1eve1s in many of these areas, inc1uding parts of the cortex, thalamus and rcticu1ar formation, tended to co-vary, and these variations in tonic activity were associated with .. ' the observed behavioura1 arousa1 1eve1 of the cat.Variations in tonic activity in ether areas (lateral genicu1ate nucleus and inferior co11icu1us) were shown to be more re1iab1y corre1ated with specifie sensory input than with arousa1 1eve1s. Behavioura1 arousa1 1eve1s appear to be more c10se1y re1ated to tonic neural activity in many areas of the brain than to the EEG record.The neural bases of specific-center and drive arousa1 theories of motivation are examined in the 1ight of these data.

show abstract

Gustatory Nerve Impulses in Rat, Cat and Rabbit

Cited by 278 publications

References 0 publications

Masking and adaptation of sugar sweetness intensity

Masking and adaptation of sugar sweetness intensity

Chemoreception of the Lateral-Line Organ of an Aquatic Amphibian, Xenopus Laevis

The role of tonic neural activity in motivational processes

Contact Info

Product

Resources

About