1. Editorial

   • Károly Elekes

   EditorialNotes 30 December 1999 Pages: 1 - 1

2. My way in Science

   Announcement 30 December 1999 Pages: 3 - 17

3. An attempt for the application of the basic Law of Psychophysics (Fechner-Stevens law) in the domain of visceral stimuli in humans

   • G. Ádám
   • J. Fent
   • M. Kajtár

   OriginalPaper 30 December 1999 Pages: 19 - 25

4. The electrogenic sodium pump activity in Aplysia neurons is not potential dependent

   • S. N. Ayrapetyan
   • Gayane Ayrapetyan
   • D. O. Carpenter

   OriginalPaper 30 December 1999 Pages: 27 - 34

5. Aluminum enhances the voltage activated sodium currents in the neurons of the pond snail Lymnaea stagnalis L.

   • T. Csóti
   • J. Győri
   • L. Erdélyi

   OriginalPaper 30 December 1999 Pages: 35 - 42

6. Effects of naloxone on c-jun/AP-1 in met-enkephalin- and FMRFamide-immunoreactive neurons of a gastropod snail

   • Varya Dyakonova
   • R. Elofsson
   • D. A. Sakharov

   OriginalPaper 30 December 1999 Pages: 43 - 54

7. MIP-immunoreactive innervation of the snail, Helix pomatia, heart. An ultrastructural study

   • K. Elekes
   • T. Nagy
   • Zsuzsanna N. Fekete

   OriginalPaper 30 December 1999 Pages: 55 - 64

8. Guaiacol and vanilloid compounds modulate the A-type potassium currents in molluscan neurons

   • L. Erdélyi

   OriginalPaper 30 December 1999 Pages: 65 - 79

9. In vitro and in vivo effects of formamidines in locust (Locusta migratoria migratorioides)

   • L. Hiripi
   • L. Nagy
   • R. M. Hollingworth

   OriginalPaper 30 December 1999 Pages: 81 - 87

10. Development of a monitoring network for the analysis of elements in aerosol samples collected at Lake Balaton

    • J. Hlavay
    • Klára Polyák
    • E. Mészáros

    OriginalPaper 30 December 1999 Pages: 89 - 98

11. Influence of HgCl₂ on the osphradial multisensory system of Lymnaea stagnalis L.

    • N. N. Kamardin
    • A. Szűcs
    • Katalin S.-Rózsa

    OriginalPaper 30 December 1999 Pages: 99 - 116

12. Cellular analysis of appetitive learning in invertebrates

    • G. Kemenes

    OriginalPaper 30 December 1999 Pages: 117 - 129

13. Effects of veratridine and its derivatives on the Na-conducting channels in Helix neurons

    • T. Kiss
    • I. Ujváry

    OriginalPaper 30 December 1999 Pages: 131 - 143

14. Birds as objects in bioindication of radioactive pollution

    • D. A. Krivolutski
    • Natalia V. Lebedeva
    • Ida I. Shuktomova

    OriginalPaper 30 December 1999 Pages: 145 - 160

15. The contribution of a pyrethroid insecticide to the massive eel (Anguilla anguilla) devastation, in Lake Balaton, in 1995

    • J. Nemcsók
    • T. Bálint
    • T. Szegletes

    OriginalPaper 30 December 1999 Pages: 161 - 173

16. Serotonin inhibits ciliary transport in esophagus of the nudibranch mollusk, Tritonia diomedea

    • Galina A. Pavlova
    • A. O. D. Willows
    • Michelle R. Gaston

    OriginalPaper 30 December 1999 Pages: 175 - 184

17. The actions of FxRFamide related neuropeptides on identified neurones from the snail, Helix aspersa

    • Sibella M. Pedder
    • R. J. Walker

    OriginalPaper 30 December 1999 Pages: 185 - 198

18. Effect of volatile anaeshetics on the electrical activity and the coupling coefficient of weakly electrically coupled neurones

    • M. M. Qazzaz
    • W. Winlow

    OriginalPaper 30 December 1999 Pages: 199 - 213

19. Rainbow trout (Oncorhynchus mykiss) exposed to oxygen supersaturation and handling stress: plasma cortisol and hepatic glutathione status

    • O. Ritola
    • T. Kiuru
    • Pirjo Lindström-Seppä

    OriginalPaper 30 December 1999 Pages: 215 - 227

20. Nitric oxide selectively enhances cAMP levels and electrical coupling between identified RPaD2NDl neurons in the CNS of Lymnaea stagnalis (L.)

    • A. V. Sidorov
    • V. B. Kazakevich
    • L. L. Moroz

    OriginalPaper 30 December 1999 Pages: 229 - 233

21. Elementary and compound postsynaptic potentials in the defensive command neurons of Helix lucorum

    • E. N. Sokolov
    • T. A. Palikhova

    OriginalPaper 30 December 1999 Pages: 235 - 245

22. Inhibition of microglial egress in excised ganglia by human interleukin 10: Implications for its activity in invertebrates

    • G. B. Stefano
    • Jennifer Kahoud
    • T. K. Hughes

    OriginalPaper 30 December 1999 Pages: 247 - 256

23. The anticonvulsive effect of non-NMDA antagonist GYKI 52466 on 3-aminopyridineinduced primary and secondary cortical ictal activity in rat

    • Barbara Barna
    • Magdolna Szente
    • A. Szász

    OriginalPaper 30 December 1999 Pages: 257 - 267

24. Periodic and oscillatory firing patterns in identified nerve cells of Lymnaea stagnalis L

    • A. SzŰcs
    • G. Molnár
    • Katalin S.-Rózsa

    OriginalPaper 30 December 1999 Pages: 269 - 278

25. Channel properties of the purified glutamate receptor from rat brain reconstituted in planar lipid bilayer membrane

    • B. A. Tashmukhamedov
    • Etibor M. Makhmudova

    OriginalPaper 30 December 1999 Pages: 279 - 286

26. Presynaptic modulation of transmitter release via α₂-adrenoceptors: nonsynaptic interactions

    • E. S. Vizi

    OriginalPaper 30 December 1999 Pages: 287 - 295

27. Comparison of the endogenous heptapeptide Met-enkephalin-Arg⁶-Phe⁷ binding in amphibian and mammalian brain

    • Mária Wollemann
    • Judit Farkas
    • S. Benyhe

    OriginalPaper 30 December 1999 Pages: 297 - 307

28. The chronoionotropic effects of new regulatory input to the heart of land pulmonates

    • V. Zhuravlev
    • V. Bugaj
    • S. Kodirov

    OriginalPaper 30 December 1999 Pages: 309 - 318