Neural recordings could be detected on each recording site in {HEAD ~ sequence} as the electrodes were lowered into {TAIL ~ the brain} 
Neural recordings could be detected on each recording site in { HEAD ~ sequence } as the electrodes were lowered into { TAIL ~ the brain }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL