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SYSTEM FOR COUNTING ANIMAL TURNS AND LOGGING THE RESULT.
  FOR DR. HILL  5/73
	EACH ANIMAL IS CONNECTED TO A TURNS COUNTER WHICH
KEEPS A RUNNING TOTAL UNTIL THE TIMER 
ASSOCIATED WITH THAT ANIMAL SIGNALS A READOUT TO THE TAPE PUNCH.
THE SUM IS TRANSFERRED OUT OF THE COUNTER IN A FEW MICROSECONDS,
THE COUNTER IS RESET TO ZERO AND RESUMES NORMAL OPERATION WHILE THE
LOGGING OF THE PREVIOUS COUNT PROCEEDS.

   
IN GROUP (A), ANIMALS ARE MEASURED FOR THEIR TENDANCY TO TURN IN A
DIRECTION DETERMINED BY A BRAIN LESION AND THE EXPERIMENTAL DRUG.
EACH ANIMAL IS ATTACHED TO A LEFT TURNS COUNTER AND A RIGHT TURNS
COUNTER.THERE CAN BE 6 ANIMALS IN GROUP (A),THEREFORE 12 COUNTERS.
IN GROUP (B), EACH ANIMAL IS ATTACHED TO A SINGLE COUNTER.
ALL TURNS ARE SUMMED IN THIS SINGLE COUNTER. THERE CAN BE 20 ANIMALS
IN GROUP(B), THEREFORE 20 COUNTERS.

	EACH GROUP OF COUNTERS IS ASSOCIATED WITH ITS OWN TIMER.
ALL THE COUNTERS IN A GROUP ARE LOGGED AT THE END OF AN INTERVAL
SET INTO THE TIMER AND THE TIMER THEN AUTOMATICALLY RESETS AND
RESTARTS.THE TIMER FOR GROUP (A) IS COMPLETELY INDEPENDENT IN OPERATION
FROM THE TIMER FOR GROUP (B). AT PRESENT, THE MINIMUM INTERVAL
WHEN RUNNING BOTH GROUPS TOGETHER IS 60 SECONDS.


		FORMAT OF DATA ON PAPER TAPE

	THE OUTPUT WORD CONSISTS OF THE TENS AND HUNDREDS
VALUES OF A COUNTER WITH A TWO DIGIT I.D. NUMBER. EACH DATA WORD IS 
SEPARATED FROM THE NEXT WITH A COMMA AND THE TELETYPE LINE IS 
TERMINATED WITH A CARRIAGE RETURN AND LINE FEED. COUNTING IS DONE
TO A BASE OF TEN. A READING OF 99 IS INSERTED FOR AN ANIMAL POSITION
WHICH HAS NOT BEEN STARTED OR IS NOT BEING RUN.