Journal of Comparative Physiology A

, Volume 158, Issue 4, pp 457–467

Regional distribution of glucose utilization in the telencephalon of toads in response to configurational visual stimuli: a14C-2DG study

  • T. Finkenstädt
  • N. T. Adler
  • T. O. Allen
  • J. -P. Ewert
Article

DOI: 10.1007/BF00603792

Cite this article as:
Finkenstädt, T., Adler, N.T., Allen, T.O. et al. J. Comp. Physiol. (1986) 158: 457. doi:10.1007/BF00603792

Summary

The regional glucose utilization in the telencephalon of toadsBufo bufo during stimulation with different visual key stimuli was quantitatively mapped by means of the14C-2DG autoradiographic method: (i) a 4×28 mm2 worm-like stripe (W) eliciting prey catching responses, (ii) a 84×84 mm2 square (S) releasing predator avoidance responses, and (iii) a 28×4 mm2 antiwormlike stripe (A) eliciting no motor response.

Various telencephalic structures changed14C- 2DG uptake statistical significantly during stimulation with the above visual objects in comparison with binocular enucleated animals (brain-to-brain comparison) and in comparison between both hemispheres in monocular animals (interhemispherical comparison): (1) The ventral two-thirds of the posterior half of the medial palliumdecreased14C-2DG uptake during W- and S-experiments, particularly in response to W. (2) In the posterior two-thirds of the lateral pallium,14C- 2DG uptake wasdecreased in response to the worm-, andincreased in response to the square (S) and antiworm stimuli (A). (3) The ventral striatumincreased uptake of14C-2DG during the animal's response to W- and S-stimuli significantly stronger than in the A-experiment. (4) The dorsal striatum also showed a significant change in14C-2DG uptake which, on a lower level, was not correlated with the type of stimulation experiment.

Various prosencephalic structures are involved in circuitries related to attentional phenomena and the gating of prey catching and predator avoidance behavior. The different functions of these structures are discussed.

Abbreviations

A

anterior dorsal thalamus

ACC

nucleus ac-cumbens

APL

amygdala, pars lateralis

APM

amygdala, pars medialis

aLP

anterior third of the lateral pallium

aMP

anterior half of the medial pallium

B

Bed nucleus of the palliai commissure

Ea

entopeduncular nucleus, pars anterior

dMP

dorsal medial pallium

dP

dorsal pallium

dSTR

dorsal striatum

La

lateral thalamic nucleus, anterior division

Lpd

lateral thalamic nucleus, postero-dorsal division

OT

optic tectum

P

posterior thalamic nucleus

pLP

posterior two-thirds of the lateral pallium

PO

preoptic area of the hypothalamus;

RET

tegmental portion of the medial reticular formation

SEP

medial (MS) and lateral (LS) septum

vMP

ventral two-thirds of the medial pallium (MP)

vSTR

ventral striatum

Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • T. Finkenstädt
    • 1
  • N. T. Adler
    • 2
  • T. O. Allen
    • 2
  • J. -P. Ewert
    • 1
  1. 1.Abteilung für Neuroethologie, GH KasselUniversität des Landes HessenKasselFederal Republic of Germany
  2. 2.Psychology DepartmentUniversity of PennsylvaniaPhiladelphiaUSA