plot coeficients of discrete wavelet transform for emotiv eeg

Hi. I want to perform discrete wavelet transform to eeg data from emotiv headset.I use wavedec with db2 and 5 levels of decomposition to get details 1 to 5 and aproximation 5 (32-64Hz Gamma,16-32 Beta,8-16 Alpha,4-8 Theta,2-4/0-2 Upper/Lower Delta) from a single channel at a time.I know that wavelet transform doesn't give the exact frequencies.My question is.Is it possible to view the fourrier transform of the coeficients,so to make sure they comply to the major eeg rythms in the parentheses? Thank you for your time.