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  • 1
    Electronic Resource
    Electronic Resource
    Thermal images of somatic sensory cortex obtained through the skull of rat and gerbil (1995)
    Springer
    Experimental brain research 106 (1995), S. 7-18 
    Details
    ISSN: 1432-1106
    Keywords: Infrared image ; Somatosensory cortex ; Skull ; Rat ; Gerbil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Infrared images of the skull surface were obtained in urethane-anesthetized rats and gerbils before, during and after mechanical stimulation of the face and mystacial vibrissae on one side. Areas of increased temperature on the skull, localized mainly over the face area of the primary somatosensory cortex contralateral to the side of stimulation, appeared within 4–5 s after the onset of stimulation. Rarely, such temperature change was recorded bilaterally. Temperatures did not remain high on the intact skull in rats, but fell to baseline within minutes after stimulus onset regardless of stimulus duration. In rats in which the skull had been thinned and in gerbils with intact skull, temperatures remained elevated during the course of stimulation. We were unable to resolve the activation of individual vibrissae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241352
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Differences in FM response correlate with morphology of neurons in the rat inferior colliculus (1992)
    Springer
    Experimental brain research 91 (1992), S. 94-104 
    Details
    ISSN: 1432-1106
    Keywords: Frequency modulation ; Intracellular recordings ; Horseradish peroxidase ; Inferior colliculus ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The response characteristics to linear frequency sweeps were studied in two groups of FM (frequency modulation) sensitive neurons in the rat inferior colliculus. ‘FM specialized’ cells responded to frequency sweeps but not to pure tones. ‘Mixed’ cells responded to both frequency sweeps and pure tones. FM specialized cells preferred faster and broader sweeps of higher intensity than did mixed cells and were more directionally selective. In addition, FM specialized cells were more sharply tuned to FM velocity and FM range and had longer response latencies. Physiologically identified FM cells stained intracellularly with horseradish peroxidase revealed differences in morphology correlating with the differences in their responses to tones. FM specialized cells had larger dendritic fields, more dendritic branching and more dendritic spines than did mixed cells. The findings are taken as evidence that the two groups of inferior colliculus neurons are both functionally and morphologically distinct.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00230017
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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