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Electrophysiological identification of cell bodies of the tubero‐infundibular neurones in the rat
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| Zeitschriftentitel: | The Journal of Physiology |
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| Personen und Körperschaften: | , |
| In: | The Journal of Physiology, 230, 1973, 1, S. 75-85 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| Zusammenfassung: | <jats:p>1. Electrical stimulation of the median eminence induced unit responses in the suprachiasmatic, the ventromedial and the arcuate nuclei of the hypothalamus in the female rat anaesthetized with urethane.</jats:p><jats:p>2. Arcuate units with constant latency responded in one to one fashion to repetitive stimuli up to 286 Hz.</jats:p><jats:p>3. A conditioning stimulus just above threshold increased the threshold and latency for responses produced by a test stimulus given within 6 msec after the conditioning stimulus. Absolute refractory period was 1·4–2·0msec.</jats:p><jats:p>4. A conditioning stimulus just below threshold did not alter the threshold and latency of the responses to test stimuli at any interval.</jats:p><jats:p>5. A stimulus given within a time period following a spontaneously occurring spike failed to induce a unit response.</jats:p><jats:p>6. It is concluded that the arcuate nucleus of the hypothalamus includes cell bodies of origin of the tubero‐infundibular axons in the rat.</jats:p> |
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| Umfang: | 75-85 |
| ISSN: |
0022-3751
1469-7793 |
| DOI: | 10.1113/jphysiol.1973.sp010175 |