Please note that PUB no longer supports Internet Explorer versions 8 or 9 (or earlier).
We recommend upgrading to the latest Internet Explorer, Google Chrome, or Firefox.
106 Publikationen
2018 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2921144

Bödeker, M.: Walking and Walkability in Pre-Set and Self-Defined Neighborhoods: A Mental Mapping Study in Older Adults. International Journal of Environmental Research and Public Health. 15, : 1363 (2018).
PUB
| PDF | DOI | WoS | PubMed | Europe PMC
2018 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 2931828
Schultz, M., Dürr, V.: Object Localisation with a Highly Compliant Tactile Sensory Probe via Distributed Strain Sensors. In: Vasiliki, V. (ed.) Biomimetic and Biohybrid Systems. Lecture Notes in Computer Science. 10928, p. 428-438. Springer, Cham (2018).
PUB | DOI
2018 | Kurzbeitrag Konferenz / Poster | PUB-ID: 2931829
Günzel, Y., Dallmann, C.J., Schmitz, J., Dürr, V.: Adaptive control of locomotion: How do stick insects master the transition from level to slope walking? Proceedings of the German Zoological Society. : NB 1 (2018).
PUB
2018 | Kurzbeitrag Konferenz / Poster | PUB-ID: 2931674
Hermes, L., Dürr, V., Hoinville, T.: Toward a biomimetic Johnston's organ for touch localization. Proceedings of the German Zoological Society. : NB 9 (2018).
PUB
2018 | Kurzbeitrag Konferenz / Poster | PUB-ID: 2931673
Papadopoulou, N., Stelter, M., Lepreux, G., Dürr, V.: Cross-modal adaptation in a descending interneuron in the stick insect Carausius morosus. Proceedings of the German Zoological Society. : NB 3 (2018).
PUB
2016 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 2900167
Pfeiffer, T., Schmidt, A., Renner, P.: Detecting Movement Patterns from Inertial Data of a Mobile Head-Mounted-Display for Navigation via Walking-in-Place. IEEE Virtual Reality 2016. p. 265. IEEE, Piscataway, NJ (2016).
PUB
2014 | Datenpublikation | PUB-ID: 2639454

Theunissen, L., Bekemeier, H., Dürr, V.: Stick Insect Locomotion. Bielefeld University (2014).
PUB
| Dateien verfügbar | DOI
2014 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2681690
Theunissen, L., Vikram, S., Dürr, V.: Spatial coordination of foot contacts in unrestrained climbing insects. Journal of Experimental Biology. 217, 3242-3253 (2014).
PUB | DOI | WoS | PubMed | Europe PMC
2012 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 2500758
Theunissen, L., Dürr, V.: On the natural statistics of unrestrained locomotion: Insects take two distinct kinds of steps. Presented at the FENS Forum of Neuroscience 2012, Barcelona (2012).
PUB
2011 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1961979
Theunissen, L., Dürr, V.: Whole-body kinematics and 3D targeting of foot contacts in unrestrained climbing stick insects (Carausius morosus). Proc. Göttingen Neurobiol. Conf. p. T21-12C. (2011).
PUB
2010 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2287921
Souman, J.L., Freeman, T.C.A., Eikmeier, V., Ernst, M.O.: Humans do not have direct access to retinal flow during walking. Journal of Vision. 10, 14 (2010).
PUB | DOI | WoS | PubMed | Europe PMC
2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681295
Cruse, H., Ehmanns, I., Stübner, S., Schmitz, J.: Tight turns in stick insects. Journal of Comparative Physiology A. 195, 299-309 (2009).
PUB | DOI | WoS | PubMed | Europe PMC
2009 | Sammelwerksbeitrag | Veröffentlicht | PUB-ID: 1681292
Cruse, H., Dürr, V., Schilling, M., Schmitz, J.: Principles of insect locomotion. In: Arena, P. and Patanè, L. (eds.) Spatial temporal patterns for action-oriented perception in roving robots. Cognitive Systems Monographs, 1. p. 43-96. Springer, Berlin (2009).
PUB | DOI
2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1634062
Jeremy, L.: Controlling a system with redundant degrees of freedom: transition from standing to walking. J. Comp. Physiol A. 195, 429-443 (2009).
PUB | DOI | WoS | PubMed | Europe PMC
2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2287980
Sreenivasa, M.N., Frissen, I., Souman, J.L., Ernst, M.O.: Walking along curved paths of different angles: the relationship between head and trunk turning. Experimental Brain Research. 191, 313-320 (2008).
PUB | DOI | WoS | PubMed | Europe PMC
2008 | Sammelwerksbeitrag | Veröffentlicht | PUB-ID: 1681294
Cruse, H., Dürr, V., Schmitz, J.: Insect Walking and its Application to Robots [in Japanese]. In: Matsukaze, M. (ed.) Insect Mimetics [in Japanese]. p. 878-884. NTS Inc. (2008).
PUB
2008 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681285
Schneider, A., Cruse, H., Schmitz, J.: An auto-adaptive joint controller for standing and walking on compliant substrates. Proceedings of the 4th Int. Symp. Adaptive Motion of Animals and Machines. (2008).
PUB
2007 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681346
Dürr, V., Krause, A.F.: Tactile sampling strategies during exploratory locomotion: Interjoint coupling matters. Soc.Neurosci.Abs. (2007).
PUB
2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681358
Düsterhus, D., Schmitz, J.: Effects of antennal stimulation on the front leg motor system in the stick insect. Neuroscience Meeting San Diego, CA: Society for Neuroscience, 2007.Online. 78.9-78.9 (2007).
PUB
2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681398
Mujagic, S., Krause, A.F., Dürr, V.: Slanted joint axes of the stick insect antenna: an adaptation to tactile acuity. Naturwiss. 94, 313-318 (2007).
PUB | DOI | WoS | PubMed | Europe PMC
2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1595004
Akay, T., Ludwar, B.C., Goeritz, M.L., Schmitz, J., Bueschges, A.: Segment specificity of load signal processing depends on walking direction in the stick insect leg muscle control system. JOURNAL OF NEUROSCIENCE. 27, 3285-3294 (2007).
PUB | DOI | WoS | PubMed | Europe PMC
2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1596597
Cruse, H., Dürr, V., Schmitz, J.: Insect walking is based on a decentralized architecture revealing a simple and robust controller. Philos Transact A Math Phys Eng Sci. 365, 221-250 (2007).
PUB | DOI | WoS | PubMed | Europe PMC
2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1593062
Jeck, T., Cruse, H.: Walking in Aretaon asperrimus. Journal of Insect Physiology. 53, 724-733 (2007).
PUB | DOI | WoS | PubMed | Europe PMC
2007 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681380
Krause, A.F., Schütz, C., Dürr, V.: Active tactile sampling patterns during insect walking and climbing. Proc.Göttingen.Neurobiol.Conf. (2007).
PUB
2006 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681408
Schilling, M., Patanè, L., Arena, P., Schmitz, J., Schneider, A.: Different, biomimetic inspired walking machines controlled by a decentralised control approach relying on artificial neural networks. Proceedings of SAB 2006 Workshop on Bio-inspired cooperative and adaptive behaviours in robots. (2006).
PUB
2006 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681393
Matheson, T., Page, K.L., Zakotnik, J., Dürr, V.: The motor control of aimed limb movements in an insect. Proc.Soc.Exp.Biol. (2006).
PUB
2006 | Bielefelder E-Dissertation | PUB-ID: 2301517

Schneider, A.: Local Positive Velocity Feedback for the movement control of elastic joints in closed kinematic chains : a modelling and simulation study of a 2DoF arm and a 3DoF insect leg. Bielefeld University, Bielefeld (Germany) (2006).
PUB
| PDF
2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2036419
Ebeling, W., Dürr, V.: Perturbation of leg protraction causes context-dependent modulation of inter-leg coordination, but not of avoidance reflexes. J. Exp. Biol. 209, 2199-2214 (2006).
PUB | DOI | WoS | PubMed | Europe PMC
2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681426
Schumm, M., Cruse, H.: Control of swing movement: influences of differently shaped substrate. Journal of Comparative Physiology A. 192, 1147-1164 (2006).
PUB | DOI | WoS | PubMed | Europe PMC
2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681337
Dürr, V., Ebeling, W.: The behavioural transition from straight to curve walking: kinetics of leg movement parameters and the initiation of turning. Journal of Experimental Biology. 208, 2237-2252 (2005).
PUB | DOI | WoS | PubMed | Europe PMC
2005 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681423
Schneider, A., Cruse, H., Schmitz, J.: Switched local positive velocity feedback controllers: Local generation of retraction forces and inter-joint coordination during walking [published on CD]. In: Witte, H. (ed.) 3rd International Symposium on Adaptive Motion in Animals and Machines. (2005).
PUB
2005 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681376
Krause, A.F., Dürr, V.: Proprioreceptive influence of sensory hair fields on antennal movements of Carausius morosus. Proc.German Zool.Soc. 98, p. 137-137. (2005).
PUB
2005 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681422
Schneider, A., Cruse, H., Schmitz, J.: Local Positive Velocity Feedback (LPVF): Generating compliant motions in a multi-joint limb. In: Armada, M.A. and Gonzalez de Santos, P. (eds.) Proceedings of the 7th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines. p. 143-151. Springer, Berlin, Heidelberg (2005).
PUB
2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681329
Dürr, V.: Context-dependent changes in strength and efficacy of leg coordination mechanisms. Journal of Experimental Biology. 208, 2253-2267 (2005).
PUB | DOI | WoS | PubMed | Europe PMC
2005 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681386
Lange, O., Reimann, B., Saenz, J., Dürr, V., Elkmann, N.: Insectoid obstacle detection based on an active tactile approach. In: Witte, H. (ed.) Proceedings of the 3rd International Symposium on Adaptive Motion in Animals and Machines (AMAM2005, Ilmenau, Germany September 25th - 30th). (2005).
PUB
2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681421
Schneider, A., Cruse, H., Schmitz, J.: A biologically Inspired active compliant joint using local positive velocity feedback (LPVF). IEEE Trans. Systems Man Cybern. Part B: Cybernetics. 35, 1120-1130 (2005).
PUB | DOI | WoS | PubMed | Europe PMC
2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681363
Frantsevich, L.I., Cruse, H.: Leg coordination during turning on an extremely narrow substrate in a bug, Mesocerus marginatus (Heteroptera, Coreidae). Journal of Insect Physiology. 51, 1092-1104 (2005).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681250
Bläsing, B., Cruse, H.: Mechanisms of stick insect locomotion in a gap crossing paradigm. Journal of Comparative Physiology A. 190, 173-183 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681251
Bläsing, B., Cruse, H.: Stick insect locomotion in a complex environment: climbing over large gaps. The Journal of Experimental Biology. 207, 1273-1286 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681439
Zill, S.N., Schmitz, J., Büschges, A.: Load sensing and control of posture and locomotion. Arthropod Structure & Development. 33, 273-286 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681355
Dürr, V., Schmitz, J., Cruse, H.: Behaviour-based modelling of hexapod locomotion: Linking biology and technical application. Arthropod.Struct.Dev. 33, 237-250 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Sammelwerksbeitrag | Veröffentlicht | PUB-ID: 1865288
Cruse, H., Bläsing, B., Dean, J., Dürr, V., Kindermann, T., Schmitz, J., Schumm, M.: WalkNet - a decentralized architecture for the control of walking behaviour based on insect studies. In: Pfeiffer, F. and Zielinska, T. (eds.) Walking: Biological and Technological Aspects. Courses and Lectures. International Centre for Mechanical Sciences. 467, p. 81-118. Springer, Wien, New York (2004).
PUB
2004 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681359
Ebeling, W., Dürr, V.: Descending information about visual motion modulates leg coordination in stick insects. Proc.7th Congr.Int.Soc.Neuroethol. p. po 215-po 215. (2004).
PUB
2004 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681405
Pinent, T., Werner, I., Krause, A.F., Dürr, V.: The use of the antennal tactile sense in locomotor behaviour of the stick insect. Proc.7th Congr.Int.Soc.Neuroethol. p. po 214-po 214. (2004).
PUB
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681436
Zakotnik, J., Matheson, T., Dürr, V.: A posture optimisation algorithm for model-based motion capture of movement sequences. Journal of Neuroscience Methods. 135, 43-54 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681246
Akay, T., Haehn, S., Schmitz, J., Büschges, A.: Signals from load sensors underlie interjoint coordination during stepping movements of the stick insect leg. Journal of Neurophysiology. 92, 42-51 (2004).
PUB | DOI | WoS | PubMed | Europe PMC
2003 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681255
Büschges, A., Dürr, V., Ekeberg, Ö., Pearson, K.G.: Stick insect walking pattern generation - a 3D neuro-mechanical simulation study. Proc.Göttingen.Neurobiol.Conf. 29, p. 1051-1051. (2003).
PUB
2003 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681361
Ekeberg, Ö., Büschges, A., Dürr, V., Pearson, K.G.: Insect walking pattern generation: a 3D - neuro - mechanical simulation study. Abstract Viewer/Itinerary Planner.Washington, DC: Society for Neuroscience.CD-ROM. 2003, p. 278.13-278.13. (2003).
PUB
2003 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681373
Krause, A.F., Dürr, V.: Efficient movement strategies for insect antennae: A modelling study on active tactile sensors. Proc.Göttingen.Neurobiol.Conf. 29, p. 255-255. (2003).
PUB
2002 | Sammelwerksbeitrag | Veröffentlicht | PUB-ID: 1681286
Cruse, H., Dean, J., Dürr, V., Kindermann, T., Schmitz, J., Schumm, M.: A decentralized, biologically based network for autonomous control of (hexapod) walking. In: Ayers, J., Davis, J.L., and Rudolph, A. (eds.) Neurotechnology for Biomimetic Robots. p. 383-400. MIT Press, Cambridge, Mass. (2002).
PUB
2002 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681332
Dürr, V., Authmann, T.: Insect curve walking revisited: Transitions versus steady states. Zoology. 105, 66-66 (2002).
PUB
2002 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681327
Dürr, V.: Transitions in insect curve walking: Time course of kinematic variables and leg coordination strength. Abstract Viewer/Itinerary Planner.Washington, DC: Society for Neuroscience.CD-ROM. 2002, p. Program No. 367.21-Program No. 367.21. (2002).
PUB
2002 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681345
Dürr, V., Krause, A.F.: Design of a biomimetic active tactile sensor for legged locomotion. In: Bidaud, P. and Ben Amar, F. (eds.) Climbing and Walking Robots, and the Support Techologies for Mobile Machines. Proc. 5th Int.Conf. Climbing and Walking Robots, (CLAWAR 2002, Paris). p. 255-262. Professional Engineering Publishing (2002).
PUB
2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681273
Cruse, H.: The functional sense of central oscillations in walking. Biological Cybernetics. 86, 271-280 (2002).
PUB | DOI | WoS | PubMed | Europe PMC
2001 | Konferenzbeitrag | Veröffentlicht | PUB-ID: 1681344
Dürr, V., Krause, A.F.: The stick insect antenna as a biological paragon for an actively moved tactile probe for obstacle detection. In: Berns, K. and Dillmann, R. (eds.) Climbing and Walking Robots - From Biology to Industrial Applications.Proc. 4th Int.Conf. Climbing and Walking Robots (CLAWAR 2001, Karlsruhe). p. 87-96. Professional Engineering Publishing (2001).
PUB
2001 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681334
Dürr, V., Brenninkmeyer, C.: The use of the antennae in tactile obstacle localisation in the walking stick insect. Proc.Congr.Int.Soc.Neuroethol. 6, p. 263-263. (2001).
PUB
2001 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681326
Dürr, V.: Stereotypic leg searching-movements in the stick insect: Kinematic analysis, behavioural context and simulation. Journal of Experimental Biology. 204, 1589-1604 (2001).
PUB | WoS | PubMed | Europe PMC
2001 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681333
Dürr, V., Bläsing, B.: Antennal movements of two stick insect species: Spatio-temporal coordination with leg movements. Zoology: Analysis of Complex Systems. 103, 17-17 (2001).
PUB
2001 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681352
Dürr, V., König, Y., Kittman, R.: The antennal motor system of the stick insect Carausius morosus: anatomy and antennal movement pattern during walking. Journal of Comparative Physiology A. 187, 131-144 (2001).
PUB | DOI | WoS | PubMed | Europe PMC
2001 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681415
Schmitz, J., Dean, J., Kindermann, T., Schumm, M., Cruse, H.: A biologically inspired controller for hexapod walking: Simple solutions by exploiting physical properties. Biological Bulletin. 200, 195-200 (2001).
PUB | DOI | WoS | PubMed | Europe PMC
2000 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681325
Dürr, V.: Leg searching-movements in the stick insect: behaviour and kinematic simulation. Zoology: Analysis of Complex Systems. 103, 16-16 (2000).
PUB
2000 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1619903
Bartling, C., Schmitz, J.: Reaction to disturbances of a walking leg during stance. JOURNAL OF EXPERIMENTAL BIOLOGY. 203, 1211-1223 (2000).
PUB | WoS | PubMed | Europe PMC
1999 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681323
Dürr, V.: Spatial searching strategies of the stick insect, using antennae and front legs. Proc.Göttingen.Neurobiol.Conf. 27, p. 212-212. (1999).
PUB
1998 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681298
Cruse, H., Kindermann, T., Schumm, M., Dean, J., Schmitz, J.: Walknet - a biologically inspired network to control six-legged walking. Neural Networks. 11, 1435-1447 (1998).
PUB | DOI | WoS | PubMed | Europe PMC
1998 | Kurzbeitrag Konferenz / Poster | Veröffentlicht | PUB-ID: 1681368
Kindermann, T., Schumm, M., Dürr, V., Cruse, H.: Behavioral and simulation studies in walking stick insects. Proc.Congr.Int.Soc.Neuroethol. 5, p. 233-233. (1998).
PUB
1996 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1638057
Kittmann, R., Schmitz, J., Büschges, A.: Premotor interneurons in generation of adaptive leg reflexes and voluntary movements in stick insects. Journal of Neurobiology. 31, 512-532 (1996).
PUB | DOI | WoS | PubMed | Europe PMC
1995 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681279
Cruse, H., Bartling, C., Dreifert, M., Schmitz, J., Brunn, D.E., Dean, J., Kindermann, T.: Walking: a complex behaviour controlled by simple networks. Adaptive Behavior. 3, 385-418 (1995).
PUB
1994 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681404
Pfeiffer, F., Cruse, H.: Bionik des Laufens - technische Umsetzung biologischen Wissens. Konstruktion. 46, 261-266 (1994).
PUB
1994 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681256
Büschges, A., Kittmann, R., Schmitz, J.: Identified nonspiking interneurons in leg reflexes and during walking in the stick insect. Journal of Comparative Physiology, A - Sensory Neural and Behavioral Physiology. 174, 685-700 (1994).
PUB | WoS
1991 | Sammelwerksbeitrag | Veröffentlicht | PUB-ID: 1681288
Cruse, H., Dean, J., Müller, U., Schmitz, J.: The stick insect as a walking robot. Proc. 5th Int. Conf. on Advanced Robotics. 2, p. 936-940. (1991).
PUB
1991 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681414
Schmitz, J., Büschges, A., Kittmann, R.: Intracellular recordings from nonspiking interneurons in a semiintact, tethered walking insect. J.Neurobiol. 22, 907-921 (1991).
PUB | DOI | WoS | PubMed | Europe PMC
1989 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1681417
Schmitz, J., Haßfeld, G.: The treading-on-tarsus reflex in stick insects: phase-dependence and modifications of the motor output during walking. Journal of Experimental Biology. 143, 373-388 (1989).
PUB