Experimental electroencephalographic study of piracetam in cats

Area of Science:

• Neuroscience
• Pharmacology

Background:

• Contradictory electroencephalographic (EEG) data exist regarding piracetam's effects.
• Further investigation is needed to clarify piracetam's impact on brain activity.

Purpose of the Study:

• To investigate the effects of piracetam on spontaneous and evoked EEG in cats.
• To analyze EEG changes after single and 10-day piracetam administration.

Main Methods:

• EEG recordings were analyzed using an ISEMA frequency-amplitude analyzer.
• Quantitative analysis of frequency ranges and mean amplitude was performed using a FACOM computer.
• Studies were conducted on intact cats following piracetam administration.

Main Results:

• No visual differences in spontaneous and evoked EEG were observed after single piracetam doses.
• Ten-day administration (1000 mg/kg i.m.) quantitatively increased fast frequencies (beta and alpha waves) and mean amplitude.
• Evoked activity following visual and sound stimulation also increased after prolonged piracetam treatment.

Conclusions:

• Piracetam's effects may involve deep brain structures.
• Prolonged piracetam administration appears to augment cerebral bioelectrical activity.