Association between brain temperature and dentate field potentials in exploring and swimming rats

摘要: Attempts to correlate behavioral learning with cellular changes, such as increased synaptic efficacy, have often relied on extracellular potentials an index of enhanced strength. A recent example is the enlarged excitatory field in dentate gyrus rats that are spatial relations by exploration. The altered hippocampal do not reflect learning-specific changes but result from a concomitant rise brain temperature caused associated muscular effort. Enhanced followed both passive and active heating were linearly related temperature. These temperature-related effects may mask any learning-induced potential.