Matches in SemOpenAlex for { <https://semopenalex.org/work/W2907177798> ?p ?o ?g. }
- W2907177798 startingPage "511113" @default.
- W2907177798 abstract "Abstract Attempts to identify cellular mechanisms underlying learning often include knocking out genes involved in candidate forms of synaptic plasticity and assessing subsequent effects on behavior. Within the cerebellum, multiple plasticity mechanisms have been proposed as cellular substrates of learning. For example, type 1-cannabinoid receptors (CB1Rs) mediate several forms of synaptic plasticity in the cerebellar cortex and have been implicated in cerebellum-dependent delay eyeblink conditioning in knockout experiments. However, recent work has shown that eyeblink conditioning is modulated by behavioral state, and global CB1KO mice are known to be hypoactive. We therefore asked to what extent altered locomotor activity vs. impaired CB1-dependent plasticity within the cerebellar cortex contribute to learning impairments in these mice. We find that eyeblink conditioning deficits in global CB1KOs can be fully accounted for by their hypoactivity. Impairments disappear when the level of locomotor activity is taken into account, and externally controlling running speed rescues learning. Moreover, both global and cerebellar granule cell-specific CB1KOs exhibit normal cerebellum-dependent locomotor adaptation. Our results suggest that the apparent effects of CB1R deletion on cerebellar learning are not due to direct effects on CB1-dependent plasticity, but rather, arise as a secondary consequence of hypoactivity. These findings highlight the importance of considering general changes in behavioral state as a powerful means through which individual genes contribute to complex behaviors, particularly in transgenic models." @default.
- W2907177798 created "2019-01-11" @default.
- W2907177798 creator A5039542909 @default.
- W2907177798 creator A5045839083 @default.
- W2907177798 creator A5051395635 @default.
- W2907177798 creator A5070622688 @default.
- W2907177798 date "2019-01-03" @default.
- W2907177798 modified "2023-09-24" @default.
- W2907177798 title "Changes in behavioral state account for the modulation of cerebellar learning by cannabinoid receptors" @default.
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