1. Anterior margin of tectum smooth.

2. Methods The structures of tectum and retina were examined histologically and the total number and diameter of the optic nerve fibers were studied quantitatively.

3. Then they looked at neural activity in the tectum, the brain area that processes visual information, before and after the stimulus.

4. In the wall of the pollen, the tectum isnt very clear with few and scattered pro-orbicules.

5. The tegmentum —— tectum —— tegmentum connections are only concerned with the mid - dle and deep layers of the superior colliculus.

6. The outer pollen wall ultrastructure of 4 excellent germplasms and their cutting offsprings showed that the tectum , columellac, foot layer and endexine had no notable variation.

7. Because of noise and variability, however, the wiring was not perfect: terminals of neighboring cells in the silicon retina did not end up next to one another in the silicon tectum.

8. In the present study, we used in vitro whole-cell patch-clamp technique to record and analyze oscillatory activity of neurons in the optic tectum of Xenopus.

9. The nucleus isthmi for the most part is located at the caudal end of the mesencephalon below the optic tectum.

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10. Neighboring artificial ganglion cells now connected to neurons in the silicon tectum that were twice as close as the initial connections.

11. From dorsal to ventral, the optic lobe can be divided into two parts: tectum and tegmentum, there is no distinct boundary between them, but the cell organization of them is different.

12. When the flashing stopped, the team noted that specific patterns of neural activity in the tectum persisted for up to 20 seconds, suggesting that the larvae remembered the flashing lights.

13. The results showed that chicken′s nuclei rotundus mainly accepted the nerve fiber of the posterodorsal central gray of the visual tectum.