Analysis of facial cold receptor activity in the rat

Heinz, Michael; ̈fer, Klaus Scha; Braun, Hans

doi:10.1016/0006-8993(90)91554-t

Cited by 26 publications

(19 citation statements)

References 18 publications

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“…Second, the transient response lasted 20-40 s which was very long for the dynamic response of cold receptors. Third, the dynamic response of cold receptors is strongly dependent on baseline skin temperature [Braun et al, 1980;Schafer et al, 1988;Heinz et al, 1990]. On the contrary, the transient response to MMW cessation remained essentially unchanged when the baseline skin temperature was lowered.…”

Section: Discussionmentioning

confidence: 98%

“…The maximal firing rate occurred at 30 8C and decreased with increasing the skin temperature. This type of static temperature dependence is typical for cold receptors [Schafer et al, 1986;Schafer et al, 1988;Heinz et al, 1990]. Hence, the inhibitory effects of MMW and radiant heat exposures result from the inhibition of cutaneous cold receptor activity due to the skin heating.…”

Section: Thermal Sensitivity Of Nerve Firingmentioning

confidence: 96%

“…Hence, the inhibitory effects of MMW and radiant heat exposures result from the inhibition of cutaneous cold receptor activity due to the skin heating. The fibers of cold receptors exhibit periodic burst discharges during both the static and dynamic activity at skin temperatures 25 8C [Braun et al, 1980;Schafer et al, 1988;Heinz et al, 1990]. The discharge patterns of the nerve in the control and following cessation of MMW exposure (Fig.…”

Section: Thermal Sensitivity Of Nerve Firingmentioning

confidence: 99%

“…The threshold intensity for this effect was 160 mW/cm 2 . It is well known that cold receptors respond to rapid cooling with a similar transient increase of firing rate [Braun et al, 1980;Schafer et al, 1988;Heinz et al, 1990]. To differentiate between the transient increases of the firing rate induced by MMW exposure and by cooling, we designate the terms ''transient response'' for response induced by MMW exposure and ''dynamic response'' for response induced by rapid cooling.…”

Section: Mmw Exposurementioning

confidence: 99%

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Millimeter wave effects on electrical responses of the sural nerve in vivo

Алексеев

Gordiienko

Radzievsky

et al. 2009

Bioelectromagnetics

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Millimeter wave (MMW, 42.25 GHz)-induced changes in electrical activity of the murine sural nerve were studied in vivo using external electrode recordings. MMW were applied to the receptive field of the sural nerve in the hind paw. We found two types of responses of the sural nerve to MMW exposure. First, MMW exposure at the incident power density >/=45 mW/cm(2) inhibited the spontaneous electrical activity. Exposure with lower intensities (10-30 mW/cm(2)) produced no detectable changes in the firing rate. Second, the nerve responded to the cessation of MMW exposure with a transient increase in the firing rate. The effect lasted 20-40 s. The threshold intensity for this effect was 160 mW/cm(2). Radiant heat exposure reproduced only the inhibitory effect of MMW but not the transient excitatory response. Depletion of mast cells by compound 48/80 eliminated the transient response of the nerve. It was suggested that the cold sensitive fibers were responsible for the inhibitory effect of MMW and radiant heat exposures. However, the receptors and mechanisms involved in inducing the transient response to MMW exposure are not clear. The hypothesis of mast cell involvement was discussed.

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Section: Discussionmentioning

confidence: 98%

Section: Thermal Sensitivity Of Nerve Firingmentioning

confidence: 96%

Section: Thermal Sensitivity Of Nerve Firingmentioning

confidence: 99%

Section: Mmw Exposurementioning

confidence: 99%

See 2 more Smart Citations

Millimeter wave effects on electrical responses of the sural nerve in vivo

Алексеев

Gordiienko

Radzievsky

et al. 2009

Bioelectromagnetics

View full text Add to dashboard Cite

show abstract

“…For example, mammalian cold receptor afferents produce bursts of impulses when chilled [1][2][3][4][5][6] ; the oscillations arise from slow ion channels of afferent terminals. 7 Odorants evoke synchronized local field oscillations in populations of olfactory receptor neurons in the olfactory epithlium of catfish, 8 and waves of neural activity in the olfactory bulb of turtles, 9 and in olfactory networks of certain molluscs.…”

Section: Introductionmentioning

confidence: 99%

Oscillations, noise, and extended negative correlations in electroreceptors

Russell

Neiman

2003

Fluctuations and Noise in Biological, Biophysical, and Biomedical Systems

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We demonstrate the existence of two types of oscillators embedded in the electroreceptor system of paddlefish. The first type of oscillator is represented by the collective activity of hundreds of epithelial cells. It produces stochastic oscillations with a well-expressed peak in the power spectrum at approx. 25 Hz. The second oscillator resides in the afferent terminals and is driven by the first, epithelial oscillations. We show that the existence of the epithelial oscillation leads to two main effects. On the one hand, it busts variability of afferent firing, expressed as an increase of the coefficient of variation of interspike intervals. On the other hand, however, the epithelial oscillations involve additional degree of ordering expressed in the extended negative correlations between sequential interspike intervals. We discuss implications of extended negative correlations on the performance of electroreceptors.

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Trigeminal lesions and maternal behavior in Norway rats: III. Experience with pups facilitates recovery

Stern

1997

Dev. Psychobiol.

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Analysis of facial cold receptor activity in the rat

Cited by 26 publications

References 18 publications

Millimeter wave effects on electrical responses of the sural nerve in vivo

Millimeter wave effects on electrical responses of the sural nerve in vivo

Oscillations, noise, and extended negative correlations in electroreceptors

Trigeminal lesions and maternal behavior in Norway rats: III. Experience with pups facilitates recovery

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