Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males

Bischof H-J, Herrmann K (1988)
Behavioral and Neural Biology 49(3): 386-397.

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In a previous study (H. J. Bischof and K. Herrmann (1986), Behavioral Brain Research, 21, 215-221) we demonstrated that four forebrain areas of the zebra finch male are activated in situations which arouse the animal, for example when the birds are chased around the cage or when they are exposed to a female. These areas, the hyperstriatum accessorium-dorsale (HAD), a part of the medial neo-hyperstriatum (MNH), the lateral neo-hyperstriatum (LNH), and a portion of the caudal archi-neostriatum (ANC), show enhanced 2-[14C]deoxyglucose (2-DG) uptake according to the experimental situation. On the basis of these experiments, we examined whether the activation of the areas is correlated with motor activity and is influenced by different isolation times prior to a 2-DG experiment, where courtship of the male birds is elicited by exposing them to a female zebra finch. For this purpose, we isolated male zebra finches for 1 day, 1 week, or 8 weeks, respectively, before we injected the 2-DG and exposed the birds to a female. During the experiment, besides other activities, the number of song motifs performed by the bird and the frequency of changing perches was recorded. Our experiments demonstrate that there is a weak negative correlation between motor activity and 2-DG uptake, and a positive correlation between isolation time and 2-DG uptake. We suggest that long isolation blocks courtship behavior by some unknown mechanisms, and that the "internal drive" of the animal, which possibly corresponds with the activity of the four forebrain areas, is enhanced by isolation and by the fact that the birds do not perform the consummatory behavior. Our results also demonstrate that the 2-DG method can show up small differences in the internal state of an animal, which cannot easily be detected by behavioral measurements.
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Bischof H-J, Herrmann K. Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males. Behavioral and Neural Biology. 1988;49(3):386-397.
Bischof, H. - J., & Herrmann, K. (1988). Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males. Behavioral and Neural Biology, 49(3), 386-397.
Bischof, H. - J., and Herrmann, K. (1988). Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males. Behavioral and Neural Biology 49, 386-397.
Bischof, H.-J., & Herrmann, K., 1988. Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males. Behavioral and Neural Biology, 49(3), p 386-397.
H.-J. Bischof and K. Herrmann, “Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males”, Behavioral and Neural Biology, vol. 49, 1988, pp. 386-397.
Bischof, H.-J., Herrmann, K.: Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males. Behavioral and Neural Biology. 49, 386-397 (1988).
Bischof, Hans-Joachim, and Herrmann, Kathrin. “Isolation-dependent enhancement of 14C-2-deoxyglucose uptake in the forebrain of zebra finch males”. Behavioral and Neural Biology 49.3 (1988): 386-397.
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