Papers in preparation

Hofmann MH, Wilkens LA. Projections of the mesencephalic tectum in the paddlefish.

Hofmann MH, Wilkens LA. Connections of the telencephalon in the paddlefish.

Papers submitted

Dees N, Bahar S, Hofmann MH. Living with different Reynolds numbers: Physical constraints drive evolution of different foraging strategies in water fleas and paddlefish. Proc Roy Soc B.

Metzen M, Chambwa M, Wilkens, LA, Hofmann MH. Descending projections to the brain stem and spinal cord in the paddlefish Polyodon spathula. Brain Behav Evol

Pothmann L, Wilkens LA, Hofmann MH. Two types of electrosensory units in the dorsal octavolateral nucleus of the paddlefish. J Comp Physiol.

Papers in press

Hofmann MH, Chagnaud BP, Wilkens LA. An edge detection filter improves spatial resolution in the electrosensory system of the paddlefish. J Neurophysiol.

Papers published:

Pothmann L, Wilkens LA, Hofmann MH. (2009) Parallel pathways for electrosensory information from the dorsal octavolateral nucleus to the midbrain in the paddlefish. Brain Res. doi:10.1016/j.brainres.2009.02.007

Hofmann MH, Northcutt RG. (2008) Organization of major telencephalic pathways in the thornback ray Platyrhinoidis triseriata. Brain Behav Evol 72:307-325. doi:10.1159/000192466.

Chagnaud BP, Wilkens LA, Hofmann MH. (2008) Receptive field organization of electrosensory neurons in the paddlefish (Polyodon spathula). J Physiol (Paris) 102:246-255. doi:10.1016/j.jphysparis.2008.10.006.

Chagnaud BP, Brücker C, Bleckmann H, Hofmann MH. (2008) Measuring flow velocity and flow direction by spatial and temporal analysis of flow fluctuations. J Neurosci 28:4479-4487.doi:10.1523/JNEUROSCI.4959-07.2008

Chagnaud BP, Bleckmann H, Hofmann MH. (2008) Lateral line nerve fibers are not sensitive to gross flow direction. Zoology 111:204-217. doi:10.1016/j.zool.2007.07.009

Hofmann MH, Jung N, Chagnaud BP, Preissner M, Siebenaller U, Wilkens LA. (2008) Response properties of electrosensory units in the midbrain tectum of the paddlefish (Polyodon spathula). J Exp Biol. 211:773-779.doi:10.1242/jeb.009795

Hofmann MH, Wilkens LA. (2008) Magnetoreception. In: Senses on the Threshold, Function and Evolution of the Sense Organs in Secondarily Aquatic Vertebrates. J.G.M. Thewissen and Sirpa Nummela, (eds.). University of California Press.

Wilkens LA, Hofmann MH. (2008) Electroreception. In: Senses on the Threshold, Function and Evolution of the Sense Organs in Secondarily Aquatic Vertebrates. J.G.M. Thewissen and Sirpa Nummela, (eds.). University of California Press.

Hofmann MH, Jung N, Wilkens LA. (2007) Resonant properties in the paddlefish electrosensory system caused by delayed feedback. Biological Cybernetics. doi:10.1007/s00422-007-0181-1

Chagnaud BP, Wilkens LA, Hofmann MH. (2007) Response properties of electrosensory neurons in the lateral mesencephalic nucleus of the paddlefish. J Comp Physiol A. 194:209-220. doi:10.1007/s00359-007-0294-y

Wilkens LA, Hofmann MH. (2007) The paddlefish rostrum as an electrosensory organ: a novel adaptation for plankton feeding. Bioscience 57:399-407. doi:10.1641/B570505

Chagnaud BP, Bleckmann H, Hofmann MH (2007) Kármán vortex street detection by the lateral line. J Comp Physiol A 193:753-763. doi:10.1007/s00359-007-0230-1

Chagnaud BP, Hofmann MH, Mogdans J (2006) Responses to dipole stimuli of anterior lateral line nerve fibers in goldfish, Carassius auratus, under still and running water conditions. J Comp Physiol A 193:249-263.doi:10.1007/s00359-006-0184-8

Hofmann MH, Chagnaud B, Wilkens LA (2005) Response properties of electrosensory afferent fibers and secondary brain stem neurons in the paddlefish. J Exp Biol 208:4213-4222. doi:10.1242/jeb.01896

Hofmann MH, Wilkens LA (2005) Temporal analysis of moving d.c. electric fields in aquatic media. Physical Biology 2:23–28. doi:10.1088/1478-3967/2/1/003

Wilkens LA, Hofmann MH (2005) The behavior of animals with a low-frequency, passive electrosensory system. In: Electroreception. Bullock TH, Hopkins CD, Popper, AN, Fay RR (eds.). Springer, New York, pp.229-263. PDF

Hofmann MH, Falk M, Wilkens LA (2004) Eectrosensory brain stem neurons compute the time derivative of electric fields in the paddlefish. Fluctuation and Noise Letters 4:L129-L138. PDF

Hofmann MH, Perry S (2003) Nervensystem und Sinnesorgane. In: “Spezielle Zoologie. Teil 2: Wirbeltiere” (Westeide W, Rieger R, eds.) Spektrum Akademischer Verlag, Heidelberg, p. 68-89. PDF

Wilkens LA, Hofmann MH, Wojtenek W (2002) The electric sense of the paddlefish: a passive system for the detection and capture of zooplankton prey. J Physiol (Paris) 96:363-377. doi:10.1016/S0928-4257(03)00015-9

Dietrich M, Hofmann MH, Bleckmann H (2002) Effects of dopaminergic drugs and telencephalic abletion on eye movements in the goldfish, Carassius auratus. Brain Res Bull 57:397-399. doi:10.1016/S0361-9230(01)00698-0

Hofmann MH, Woijtenek W, Wilkens LA (2002) Central organization of the electrosensory system in the paddlefish (Polyodon spathula). J Comp Neurol 446:25-36. doi:10.1002/cne.10194

Kirsch JA, Hofmann MH, Mogdans J, Bleckmann H (2002) Response properties of diencephalic sensory neurons to visual, mechanosensory, and acoustic stimulation in the goldfish. Zoology 105:61-70. doi:10.1078/0944-2006-00045

Kirsch JA, Hofmann MH, Mogdans J, Bleckmann H (2002) Responses of diencephalic neurons to sensory stimulation in the goldfish, Carassius auratus. Brain Res Bull 57:419-421. doi:10.1016/S0361-9230(01)00703-1

Schwarz S, Hofmann MH, Gutzen C, Schlax S, von der Emde G (2002) “Viewer”: A program for visualising, recording, and analysing animal behavior. Computer Methods and Programs in Biomedicine 67:55-66. doi:10.1016/S0169-2607(00)00150-4

Vonderschen K, Bleckmann H, Hofmann MH. (2002) A direct projection from the cerebellum to the telencephalon in the goldfish, Carassius auratus. Neurosci Lett 320:37-40. doi:10.1016/S0304-3940(02)00022-8

Hofmann MH (2001) The role of the telencephalon in sensory information processing. In: Kapoor BG and Hara TJ (eds.). Sensory Biology of Jawed Fishes - New Insights. Science Publishers, Enfield, New Hampshire, USA, pp. 255-274. PDF

Wojtenek W, Hofmann MH, Wilkens LA (2001) Primary afferent electrosensoryneurons represent paddlefish natural prey. Neurocomputing 38-40:451-458. doi:10.1016/S0925-2312(01)00381-2

Schmitz H, Trenner S, Hofmann MH, Bleckmann H (2000) The ability of Rhodnius prolixus (Hemiptera; Reduviidae) to approach a thermal source solely by its infrared radiation. J Insect Physiol 46: 745-751. doi:10.1016/S0022-1910(99)00163-8

Schwarz S, Hofmann MH, von der Emde G (2000) Weakly electric fish as a natural model for industrial sensors. BIONA Report 15. PDF

Bleckmann H, Hofmann MH (1999) Special senses. In: Biology of Elasmobranch Fishes, W.C. Hamlett (ed.). Baltimore: John Hopkins University Press, pp. 300-328. PDF

Hofmann MH (1999) Nervous system. In: Biology of Elasmobranch Fishes, W.C. Hamlett (ed.). Baltimore: John Hopkins University Press, pp. 273-299. PDF

Hofmann MH, Bleckmann H (1999) Effect of temperature and calcium on transneuronal diffusion of DiI in fixed brain preparations. J Neurosci Meth 88:27-31. doi:10.1016/S0165-0270(99)00007-2

Hofmann MH, Bleckmann H (1997) Subdivisions of the olfactory system in the sterlet Acipenser ruthenus. Neurosci Lett 233:154-156. doi:10.1016/S0304-3940(97)00641-1

Hofmann MH, Bullock TH (1995) Induced rhythms and apparent expectation in retina and optic tectum of an elasmobranch. Proceedings of the 2nd Joint Symposium on Neural Computation, La Jolla, USA 5:115-125.

Hofmann MH, Meyer DL (1995) The extrabulbar olfactory pathway: Primary olfactory fibers, bypassing the olfactory bulb in bony fishes? Brain Behav Evol 46:378-388. doi:10.1159/000113288

Meyer DL, Malz CR, Hofmann MH, Piñuela C (1994) Centrifugal innervation of the retina in bony fishes. Review of a century of research. In: Advances in Fish Biology and Fisheries, Vol. 1 (Singh H.R. and Qasim S.Z. eds.) Vedams Books International, New Delhi. PDF

Bullock TH, Karamüsel S, Hofmann MH (1993) Interval-specific event related potentials to omitted stimuli in the electrosensory pathway in elasmobranchs: an elementary form of expectation. J Comp Physiol A 172:501-510. doi:10.1007/BF00213532

Hofmann MH, Meyer DL (1993) Visual evoked responses in the salmon telencephalon change during smolt transformation. Neurosci Lett 155:234-236. doi:10.1016/0304-3940(93)90716-X

Hofmann MH, Piñuela C., Meyer DL (1993) Retinopetal projections from diencephalic neurons in a primitive actinopterygian fish, the sterlet Acipenser ruthenus.
Neurosci Lett 161:30-32. doi:10.1016/0304-3940(93)90132-5

Zippel HP, Hofmann MH, Meyer DL, Zeman S (1993) Functional and morphological regeneration of olfactory tracts and subtracts in goldfish. J Comp Physiol A 172:91-99. doi:10.1007/BF00214718

Erdö SL, Meyer DL, Malz C, Hofmann MH, Ebbesson SOE (1992) Changes in ligand binding to GABAA receptor sites in pacific salmon (Oncorhynchus) brain during spawning migration and "aging". J Hirnforsch. 33:467-469. PDF

Hofmann MH, Meyer DL (1992) Peripheral origin of olfactory nerve fibers by-passing the olfactory bulb in Xenopus laevis. Brain Res 589:161-163. doi:10.1016/0006-8993(92)91178-H

Bullock TH, Hofmann MH, New JG, Nahm FK (1991) Dynamic properties of visual evoked potentials in the tectum of cartlaginous and bony fishes, with neuroethological implications. J Exp Zool Suppl 5:142-155. PDF

Hofmann MH, Meyer DL (1991) Functional subdivisions of the olfactory system correlate with lectin binding properties in Xenopus. Brain Res 564:344-347. doi:10.1016/0006-8993(91)91475-G

Hofmann MH, Meyer DL (1991) Subdivisions of the terminal nerve in Xenopus laevis. J Exp Zool 259:324-329. doi:10.1002/jez.1402590307

Wullimann MF, Hofmann MH, Meyer DL (1991) Histochemical, connectional and cytoarchitectonic evidence for a secondary reduction of the pretectum in the European eel, Anguilla anguilla: a case of parallelism. Brain Behav Evol 38:290-301. doi:10.1159/000114395

Wullimann MF, Hofmann MH, Meyer DL (1991) The valvula cerebelli of the spiny eel, Macrognathus aculeatus, receives primary lateral-line afferents from the rostrum of the upper jaw. Cell Tiss Res 266:285-293. doi:10.1007/BF00318184

Bullock TH, Hofmann MH, Nahm FK, New JG, Prechtl JC (1990) Event-related potentials in the retina and optic tectum of fish. J Neurophysiol 64:903-914. PDF

Hofmann MH, Ebbesson SOE, Meyer DL (1990) Tectal afferents in Rana pipiens. A reassessment questioning the comparability of HRP-results. J Hirnforsch 31:337-340. PDF

Hofmann MH, Meyer DL (1989) Central projections of the nervus terminalis in four species of amphibians. Brain Behav Evol 34:301-307. doi:10.1159/000116515

Hofmann MH, Meyer DL (1989) The nervus terminalis in larval and adult Xenopus laevis. Brain Res 498:167-169. doi:10.1016/0006-8993(89)90415-0

Hofmann MH, Michler A, Meyer DL (1989) Thyroxine influences neural connectivity in the adult frog brain. Brain Res 492:389-391. doi:10.1016/0006-8993(89)90926-8