The median inferior frontal lobe and touch learning in the octopus.
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چکیده
منابع مشابه
Distribution of glutamic acid decarboxylase immunoreactivity within the brain of oval squid Sepioteuthis lessoniana
Coleoid cephalopods (squid, cuttlefish, and octopus) have the largest and most complex brains of all invertebrates and show behavioral abilities similar to those of vertebrates. Among the coleoids, the oval squid Sepioteuthis lessoniana forms well-structured schools that are indicative of sociality. These behaviors are re flected in aspects of the well-developed brain. In this study, we focused...
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INTRODUCTION Octopuses blinded by section of their optic nerves can be trained to discriminate between the members of pairs of objects touched (Wells & Wells, 1956, 1957a). Removal of the optic lobes—more than half of the total mass of the brain—does not affect their performance in such discriminations (Wells & Wells, 19576), but removal of a comparatively small amount of tissue from the vertic...
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Electron microscopy of the vertical lobe of octopus brain shows that the synaptic knobs of axons with penkarya in the median superior frontal lobe have synaptic vesicles, approximately 28 % of which are dense-cored (or granulated). In contrast, the endings of the amaenne neurons in the vertical lobe and the endings in the retina and optic lobe, both of which are derived from the retinal visual ...
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establishment of new neural connections rather than the modification of existing sets. Blinded octopuses can acquire certain kinds of discriminations based upon tactile or chemical stimulation. The results of a textual discrimination experiment with grooved cylinders suggest that the "discrimination of the topographical features of objects touched may be based simply upon the proportion of sens...
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عنوان ژورنال:
- The Journal of experimental biology
دوره 56 2 شماره
صفحات -
تاریخ انتشار 1972