GAS CHROMATOGRAPHY – K. A. Rittenbach and G. B. Baker -- HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC ANALYSIS OF PSYCHOTROPIC AND ENDOGENOUS COMPOUNDS – J. Odontiadis and G. Rauw -- CYTOCHROME P450 REACTIONS IN THE HUMAN BRAIN – R. L. Haining -- PRACTICAL ENZYMOLOGY: QUANTIFYING ENZYME ACTIVITY AND THE EFFECTS OF DRUGS THEREUPON – A. Holt -- FLUORESCENCE MEASUREMENTS OF RECEPTOR-LIGAND INTERACTIONS – S. M. J. Dunn -- THE ANALYSES OF NEUROTRANSMITTERS, OTHER NEUROACTIVE SUBSTANCES, AND THEIR METABOLITES USING MASS SPECTROMETRY – B. D. Sloley, G. Rauw, and R. T. Coutts -- THE ANALYSIS OF NEUROACTIVE STEROIDS BY MASS SPECTROMETRY – R. H. Purdy, R. L. Fitzgerald, E. T. Everhart, S. H. Mellon, A. A. Alomary, and L. H. Parsons -- METHODS IN IMMUNOCHEMISTRY – L. L. Jantzie, V. A.-M. I. Tanay, and K. G. Todd -- IN VIVO MICRODIALYSIS: A METHOD FOR SAMPLING EXTRACELLULAR FLUID IN DISCRETE BRAIN REGIONS – D. L. Krebs-Kraft, K. J. Frantz, and M. B. Parent -- CHARACTERIZATIONS OF RECEPTORS BY RADIOLABELLED LIGAND BINDING TECHNIQUES – I. L. Martin, M. Davies, and S. M. J. Dunn -- ANALYSIS OF RECEPTOR LOCALIZATION IN THE CENTRAL NERVOUS SYSTEM USING IN VITRO AND IN VIVO RECEPTOR AUTORADIOGRAPHY – S. Kar and C. Hawkes -- IN SILICO MOLECULAR HOMOLOGY MODELING OF NEUROTRANSMITTER RECEPTORS – M. Wang, D. R. Hampson, and L. P. Kotra -- FLOW CYTOMETRY – W. P. Gati -- EXPRESSION AND STUDY OF LIGAND-GATED ION CHANNELS IN XENOPUS LAEVIS OOCYTES – A. Kapur, J. M. C. Derry, and R. S. Hansen -- NUCLEIC ACID QUANTITATION USING THE COMPETITIVE POLYMERASE CHAIN REACTION – J. Auta, Y. Chen, W. B. Ruzicka, and D. R. Grayson -- IN SITU HYBRIDIZATION – A. N. Bateson -- ANALYSIS OF GENE EXPRESSION IN THE BRAIN USING DIFFERENTIAL DISPLAY – K. L. Gilby and E. M. Denovan-Wright -- GENE ARRAYS: A PRACTICAL APPROACH TO STUDYING STROKE WITH MICROARRAY – R. W. Gilbert, W. J. Costain, and H. A. Robertson -- YEAST TWO-HYBRID STUDIES – M. J. Smith, K. Pozo, and F. A. Stephenson -- PROTEIN ENGINEERING: CHIMERAGENESIS AND SITE-DIRECTED MUTAGENESIS – M. Davies -- CYSTEINE SCANNING MUTAGENESIS: MAPPING BINDING SITES OF LIGAND-GATED ION CHANNELS – J. G. Newell and C. Czajkowski -- PROTEIN X-RAY CRYSTALLOGRAPHY – D. A. R. Sanders.