Abstract:
:Single unit activity was recorded from the ventral part of the lateral geniculate nucleus (vLGN) in rats anaesthetized with urethane. Most of the cells located laterally in the nucleus were excited by light. The studied vLGN neurones did not respond to electrical stimulation of the tail, but about half of them changed their response to light significantly when the light flash was paired with the electrical stimulation. When the tail stimulus preceded the light, the changes consisted in a pronounced facilitation of flash-evoked activity. When the electrical stimulus was applied after the flash in a forward conditioning paradigm, facilitations were less pronounced and responses of some neurones were suppressed. These results are in contrast to those of similar experiments on the dorsal LGN, neurones of which were mainly facilitated by the conditioning paradigm. Thus, light-evoked activity of ventral geniculate cells can be enhanced by arousal-related processes.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Davidowa H,Albrecht Ddoi
10.1016/s0166-4328(05)80294-3subject
Has Abstractpub_date
1992-09-28 00:00:00pages
127-33issue
1-2eissn
0166-4328issn
1872-7549pii
S0166-4328(05)80294-3journal_volume
50pub_type
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