Age-dependent changes in hippocampal theta.
The hippocampal theta rhythm in rats exhibited an age-dependent slowing in modal frequency. However, the theta rhythm of young rats with chronic respiratory infections showed a similar slowing. Respiratory disease-free hamsters also exhibited an age-dependent slowing of modal frequencies. These findings emphasize that the health status of the animal must be examined carefully in order to establish an age-dependent slowing in hippocampal rhythm.
D000367:Age Factors; D000818:Animals; D006224:Cricetinae; D004569:Electroencephalography; D005260:Female; D006624:Hippocampus / Q000502:physiology*; D008297:Male; D008647:Mesocricetus; D051381:Rats; D012141:Respiratory Tract Infections / Q000503:physiopathology; D013826:Theta Rhythm