1. Debrisoquine, guanethidine, propranolol and human sleep

   • D. L. F. Dunleavy
   • A. W. MacLean
   • I. Oswald

   Original Investigations Pages: 101 - 110

2. Modification of the anti-nociceptive activity of morphine by centrally administered ouabain and dopamine

   • C. R. Calcutt
   • N. S. Doggett
   • P. S. J. Spencer

   Original Investigations Pages: 111 - 117

3. Measurement of pharmacological depression of exploratory activity in mice: A contribution to the problem of time-economy and sensitivity

   • M. Kršiak
   • I. Janků

   Original Investigations Pages: 118 - 130

4. “Accidental conditioning” with chronic methamphetamine intoxication: Implications for a theory of drug habituation

   • E. H. Ellinwood Jr.

   Original Investigations Pages: 131 - 138

5. Appetite suppression and central nervous system stimulation in the rhesus monkey

   • A. H. Tang
   • J. D. Kirch

   Original Investigations Pages: 139 - 146

6. The effects of cholinergic agents upon fixated behavior

   • Vincent P. Houser
   • Robert S. Feldman

   Original Investigations Pages: 147 - 156

7. Alpha-methylparatyrosine and sleep in the rat

   • Ernest Hartmann
   • Thomas J. Bridwell
   • Joseph J. Schildkraut

   Original Investigations Pages: 157 - 164

8. The effects of acutely administered fenfluramine on activity and eating behaviour

   • M. Taylor
   • J. Livesey
   • R. Bunce

   Original Investigations Pages: 165 - 173

9. Effects of LSD on time-based schedules of reinforcement

   • James B. Appel

   Original Investigations Pages: 174 - 186