Bannockburn, an obscurely bred 2-year-old filly, defeated tricki Vicki by a length in yesterday's $30,000-added Cameo Stakes at Laurel Race Course. But the center of attention was Secret Emotion, a 3-year-old filly whose 1:08 3/5 broke the track record for six furlongs for the second time in as many starts, all after being treated with a new invention similar to electrodes used on professional athletes.

On Dec. 6 Secret Emotion sped the distance in 1:09 winning by seven lengths. Yesterday, the chestnut daughter of Spanish Riddle again distanced her field by nearly seven lengths.

Trainer Richard Dutrow said of the filly, "It was all due to the little black box that this inventor, Jerrome Church, came around with. My filly had a fractured cannon bone and this Church fellow, a genius if there ever was one, said he thought he could help her recuperate.

"He treated her with something (the electrode) that came out of the little box and she responded immediately. Every day she got better. He did so well for me and a few others that he sold the patent and, I hope, is on his way to becoming a rich man. I don't know what the machine does, but I know that there is a current that promotes healing."

Church, who hails from Charlottsville, Va., by way of Scotland, could not be reached for comment.

Laurel announced yesterday that it would push back post time on Tuesday and Wednesday to 11.30 a.m. so that it could card 11 races on those final two days. The extra races are intended to replace some of those lost when an icy track forced postponement of Friday's program.

Meanwhile, the race track employes unions will meet in Baltimore Monday night to determine whether they will ratify a new contract being offered by the tracks. The old contract will expire Wednesday. Neither side has stated the details of the new proposal, but informed sources say that there is still significant differences between the two factions and that the issue will go down to the wire.