𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Action potentials in the nervous system of the crayfish. II. Responses to illumination of the eye and caudal ganglion

✍ Scribed by Prosser, C. Ladd

Publisher
Wiley (John Wiley & Sons)
Year
1934
Tongue
English
Weight
744 KB
Volume
4
Category
Article
ISSN
0095-9898

No coin nor oath required. For personal study only.

✦ Synopsis

The electric response in the optic nerve to illumination of the vertebrate eye was shown by Adrian and Alalthews ('27) to consist, like the well-known retinal potential, of a n initial burst of impulses or 'on' effect, a maintained response or steady level during illumination, and a final burst o r 'off' efleet following removal of the stimulus. Kor~miiller ( '32) and Fischcr ( '32) found tliat, the rcsporise in the visual cortex to illumination of the contralateral eye rcsernbles that in the optic nerve and that separate areas of the cortex appear to be concerned with the 'on' and 'off' effects and with the maintained response.

The retinal potential recorded in several arthropod eyes by Hartline ('28) is similar to that in the vertebrate eye except that the 'off' effect appears to be more variable among different species. Hartline stated that the retinal potential in the crayfish consists of an 'on' effect, a maintained response, and a marked 'off' effect. Hartline and Graham ('32) found that the response in the optic nerve of Limulus resembles the retinal potential in that animal in consisting of a n 'on' effect and maintained discharge during illumination but no 'off' efYect except a slow decline after the stimuiation ceases.

πŸ“œ SIMILAR VOLUMES

Action potentials in the nervous system
Action potentials in the nervous system of the crayfish. III. Central responses to proprioceptive and tactile stimulation
✍ C. Ladd Prosser πŸ“‚ Article πŸ“… 1935 πŸ› John Wiley and Sons 🌐 English βš– 716 KB

Sensory hairs border the cephalothorax and abdomen of the crayfish and are abundant on the appendages. The appendages are provided in addition with many proprioceptors, especially at the joints (Retzius, 1895 and others). Barnes ( '30 and '32) recorded action potentials in sensory nerves of the leg

Action potentials in the nervous system
Action potentials in the nervous system of the crayfish. V. Temporal relations in presynaptic and postsynaptic responses
✍ Prosser, C. Ladd πŸ“‚ Article πŸ“… 1935 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 867 KB

Along the margins of the lobes of the tail (telson aud uropods) of' tlic crayfish is a fringe of sciisory hairs. Each hair coiitaiiis one sensory ending (touch receptor), amid the cell body of the nerve fiber of this ending lies a t the base of the hair (Retzius, 1895). The afferent fiber from this

Action potentials in the nervous system
Action potentials in the nervous system of the crayfish. Effects of drugs and salts upon synaptic transmission
✍ Prosser, C. Ladd πŸ“‚ Article πŸ“… 1940 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 895 KB

## EIGHT FIGURES Tlie " spontaneous " activity iii the ceriti\*al iicwous system of' tlic ci.ayfisli pi.ovides a hactkgi\*ound upon which all responses to sciisoi\*y stiiiiulatioii must be studied. The dependence of tliis "spontaiieous" activity upon the ratio of the potassium iiisicle to that out

Drosophila larval neuromuscular junction
Drosophila larval neuromuscular junction's responses to reduction of cAMP in the nervous system
✍ Cheung, Una S. ;Shayan, Alexander J. ;Boulianne, Gabrielle L. ;Atwood, Harold L. πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 174 KB πŸ‘ 1 views

We investigated the effects of chronically lowered cyclic adenosine monophosphate (cAMP) on the morphology and physiology of the Drosophila larval neuromuscular junction, using two fly lines in which cAMP was significantly lower than normal in the nervous system: (a) transgenic flies in which the du