Masayuki Yoshida

Last Updated :2026/06/02

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
E-mail
yosidamhiroshima-u.ac.jp
Self-introduction
Major interest: biological psychology. Considering the animal mind as one of the biological functions. Investigating how biological systems create mind

Basic Information

Academic Degrees

  • Doctor of Philosophy, Hiroshima University
  • Master, Hiroshima University

Educational Activity

  • [Bachelor Degree Program] School of Applied Biological Science : Department of Applied Biological Science : Integrative Hydrospheric Science Program
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Bioresource Science
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Biomedical Science
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Bioresource Science
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Biomedical Science

Research Fields

  • Biology;Basic biology;Animal physiology / Animal behavior

Research Keywords

  • ecology
  • behavior
  • emotion
  • brain
  • cognitive neuroscience
  • learning
  • memory
  • Fish
  • Biological Psychology

Educational Activity

Course in Charge

  1. 2026, Liberal Arts Education Program1, 1Term, Sport fishing and science: fishes-human beings interactions
  2. 2026, Undergraduate Education, Intensive, Laboratory Work in General Biology II
  3. 2026, Undergraduate Education, 1Term, Introduction to Physiology
  4. 2026, Undergraduate Education, 1Term, Hydrospheric ZoologyII
  5. 2026, Undergraduate Education, Intensive, Practical Work in Hydrospheric Field ScienceII
  6. 2026, Undergraduate Education, 1Term, Exercises in Integrative Hydrospheric ScienceII
  7. 2026, Undergraduate Education, Second Semester, Graduation Thesis I
  8. 2026, Undergraduate Education, First Semester, Graduation Thesis II
  9. 2026, Undergraduate Education, Second Semester, Graduation Thesis III
  10. 2026, Undergraduate Education, Intensive, (AIMS) Fish Production
  11. 2026, Undergraduate Education, Intensive, Fish Production
  12. 2026, Graduate Education (Master's Program) , 1Term, Exercises in Bioresource Science A
  13. 2026, Graduate Education (Master's Program) , 2Term, Exercises in Bioresource Science A
  14. 2026, Graduate Education (Master's Program) , 3Term, Exercises in Bioresource ScienceB
  15. 2026, Graduate Education (Master's Program) , 4Term, Exercises in Bioresource ScienceB
  16. 2026, Graduate Education (Master's Program) , Year, Research for Academic Degree Dissertation in Bioresource Science
  17. 2026, Graduate Education (Master's Program) , 2Term, Aquatic Zoology
  18. 2026, Graduate Education (Master's Program) , 3Term, Biomedical Science Seminar A
  19. 2026, Graduate Education (Master's Program) , 3Term, Biomedical Science Seminar B
  20. 2026, Graduate Education (Master's Program) , 3Term, Introduction to Disease Models
  21. 2026, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar C
  22. 2026, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar D
  23. 2026, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar E

Research Activities

Academic Papers

  1. Characteristics of the sleep structure in the cleaner wrasse Labroides dimidiatus, ZOOLOGICAL LETTERS, 12(1), 20260108
  2. Pediococcus pentosaceus decreases α-synuclein accumulation and alleviates parkinsonism in Caenorhabditis elegans and Oryzias latipes, JOURNAL OF FUNCTIONAL FOODS, 129, 202506
  3. Simultaneous Motion and Respiration Measurement in Adult Zebrafish Based on the Instantaneous Spatial Distribution of Separated Ventilatory Signals, IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 73, 2024
  4. Incorporating ventilatory activity into a novel tank test for evaluating drug effects on zebrafish, PHYSIOLOGY & BEHAVIOR, 257, 20221201
  5. Pharmacological effects of caffeine on ventilation in adult zebrafish under free-swimming conditions, SCIENTIFIC REPORTS, 12(1), 20221021
  6. Activities of mesencephalic nucleus neurons during fictive swimming of the carp Cyprinus carpio, Fisheries Science, 69(3), 581-588, 20030601
  7. Relationship Between Brain Morphology and Life History in Four Bottom-Dwelling Gobiids, ZOOLOGICAL SCIENCE, 37(2), 168-176, 202004
  8. Real-Time Cameraless Measurement System Based on Bioelectrical Ventilatory Signals to Evaluate Fear and Anxiety, ZEBRAFISH, 15(2), 133-144, 201804
  9. Granule cells control recovery from classical conditioned fear responses in the zebrafish cerebellum, SCIENTIFIC REPORTS, 7, 20170919
  10. Medaka and zebrafish contactin1 mutants as a model for understanding neural circuits for motor coordination, GENES TO CELLS, 22(8), 723-741, 2017
  11. Principal function of mineralocorticoid signaling suggested by constitutive knockout of the mineralocorticoid receptor in medaka fish, SCIENTIFIC REPORTS, 6, 20161129
  12. Comparison of the Visual Capabilities of an Amphibious and an Aquatic Goby That Inhabit Tidal Mudflats, BRAIN BEHAVIOR AND EVOLUTION, 87(1), 39-50, 201604
  13. Impact of dehydration on the forebrain preoptic recess walls in the mudskipper, Periophthalmus modestus: a possible locus for the center of thirst, JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMIC AND ENVIRONMENTAL PHYSIOLOGY, 186(7), 891-905, 2016
  14. Visual Capability of the Weakly Electric Fish Apteronotus albifrons as Revealed by a Modified Retinal Flat-Mount Method, BRAIN BEHAVIOR AND EVOLUTION, 86(2), 122-130, 201510
  15. Comparison of the mode of action of three anesthetic agents, 2-phenoxyethanol, MS-222, and eugenol on goldfish, Aquaculture Science, 62(4), 425-432, 201412
  16. Rapid acquisition of an appetitive conditioned response in an intertidal fish, Tridentiger trigonocephalus (Gobiidae), using an ethologically relevant conditioning paradigm, BEHAVIOUR, 150(6), 585-598, 2013
  17. Individual Identification of Goldfish from Eye Morphology: The Eye Mark Method, ZOOLOGICAL SCIENCE, 30(11), 962-966, 2013
  18. Fear conditioning-related changes in cerebellar Purkinje cell activities in goldfish, BEHAVIORAL AND BRAIN FUNCTIONS, 8, 2012
  19. Development of a simple behavior-analysis software and its application to the quantitative analysis of antipredator behavior in medaka, Aquaculture Science, 59, 367-373, 20110601
  20. Temporal changes in exploratory behaviors of goldfish elicited by the presentation of a novel object, Aquaculture Science, 59, 419-425, 20110401
  21. Responses of cerebellar Purkinje cells to conditioned stimulus change after acquisition of conditioned fear in goldfish, NEUROSCIENCE RESEARCH, 71, E268-E268, 2011
  22. Effects of local anesthesia of the cerebellum on classical fear conditioning in goldfish, BEHAVIORAL AND BRAIN FUNCTIONS, 6, 20100323
  23. A Neural Recording Amplifier with Low-Frequency Noise Suppression, IEICE TRANSACTIONS ON ELECTRONICS, E93C(6), 849-854, 2010
  24. Impairment of classical fear conditioning by local anesthesia of the cerebellum in goldfish, NEUROSCIENCE RESEARCH, 68, E404-E404, 2010
  25. Photocardiography: a novel method for monitoring cardiac activity in fish, Zoological Science, 20090701
  26. A Neural Signal Detection Amplifier with Low-Frequency Noise Suppression, Proc. of 2009 IEEE International Symposium on Circuits and Systems (ISCAS2009), 661-664, 20090525
  27. Artificial comtrol of swimming in goldfish by brain stimulation: confirmation of the midbrain nuclei as the swimming center, Neuroscience Letters, 452, 42-46, 20090113
  28. Effects of partial ablation of the cerebellum on sustained swimming in goldfish, Brain Behav. Evol., 70, 105-114, 20070701
  29. Recording cerebellar neuron activities in swimming goldfish, Fish. Sci., 73, 512-521, 20070501
  30. Central mechanisms underlying fish swimming, Brain Behav. Evol., 69, 142-150, 20070501
  31. Social control of terminal phase transition in primary males of the diandric wrasse, Halichoeres poecilopterus (Pisces: Labridae), Journal of Ethology, 25(1), 57-61, 20070401
  32. Recording cerebellar neuron activities in swimming goldfish, FISHERIES SCIENCE, 73(3), 512-521, 2007
  33. Molecular cloning and effect of c-fos mRNA on pharmacological stimuli in the goldfish brain, COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS, 1(2), 253-259, 2006
  34. Cerebellar efferent neurons in teleost fish, CEREBELLUM, 5(4), 268-274, 2006
  35. Morphology and immunohistochemistry of efferent neurons of the goldfish corpus cerebelli, JOURNAL OF COMPARATIVE NEUROLOGY, 487(3), 300-311, 20050704
  36. Comparison of behavioral responses to a novel environment between three teleosts, bluegill Lepomis macrochirus, crucian carp Carassius langsdorfii, and goldfish Carassius auratus, FISHERIES SCIENCE, 71(2), 314-319, 2005
  37. Partial cloning and expression of mRNA coding choline acetyltransferase in the spinal cord of the goldfish, Carassius auratus, COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY, 141(3), 253-260, 2005
  38. Involvement of the cerebellum in classical fear conditioning in goldfish, BEHAVIOURAL BRAIN RESEARCH, 153(1), 143-148, 20040812
  39. Design of a Wireless Neural-Sensing LSI, IEICE Trans. Electron., VOL.E87-C, 996-1002, 20040601
  40. Design of a wireless neural-sensing LSI, IEICE Trans. Electron., E87C, 996-1002, 20040401
  41. A Design of Neural Signal Sensing LSI with Multi-Input Channels, IEICE, E87-A, 376-383, 20040201
  42. A design of neural signal sensing LSI with multi-input-channels, IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, E87A(2), 376-383, 2004
  43. Histochemical properties of the cerebellar neurons in goldfish, ZOOLOGICAL SCIENCE, 21(12), 1315-1315, 2004
  44. Actual and effective utilization of neuron specific mRNAs to identify particular neuron groups participating in particular fish behaviour, ZOOLOGICAL SCIENCE, 21(12), 1315-1315, 2004
  45. Design of a Wireless Neural-Sensing LSI(Analog Circuit and Device Technologies), IEICE transactions on electronics, 87(6), 996-1002, 20040601
  46. Electrophysiological identification of the cerebellar neurons in goldfish, ZOOLOGICAL SCIENCE, 21(12), 1314-1314, 2004
  47. Activities of mesencephalic nucleus neurons during fictive swimming of the carp Cyprinus carpio, Fish Sci., 69, 581-588, 20030401
  48. A design of wireless-neural sensing LSI., Technical Report of IEICE, 86, 35-40, 20030401
  49. A design of neural signal sensing LSI with multi-input-channels., SASIMI 2003, 2-13, 20030401
  50. A new method to record activities of spinal motoneurons during fictive swimming in paralyzed teleost fish, Fish Sci., 68, 277-281, 20020401
  51. Post-hatching development of the brain in Octopus ocellatus, Zool. Sci., 19, 763-771, 20020401
  52. A design of neural signal sensing LSI with multi-input-channels, Technical Report of IEICE. ICD2002, 84, 25-30, 20020401
  53. Efferent connections of the cerebellum of the goldfish, Carassius auratus, BRAIN BEHAVIOR AND EVOLUTION, 60(1), 36-51, 2002
  54. Defining classes of spinal interneuron and their axonal projections in hatchling Xenopus laevis, J. Comp. Neurol., 441, 248-265, 20010401
  55. Spinal motor and dorsal root ganglionic neurons in the juvenile Japanese eel, Anguilla japonica, Fish Sci., 708-711, 19991201
  56. The motoneurons of the axial swimming muscles in hatching Xenopus tadpoles: their features, distribution and central synapses, J. Comp. Neurol., 472-486, 19990801
  57. Posthatching development of spinal motoneurons in the angelfish, Pterophyllum scalare, Brain Behav. Evol., 180-186, 19990701
  58. Development of the myotomal neuromuscular system in embryonic and larval angelfish, Pterophyllum scalare, Zool. Sci., 775-784, 19990601
  59. Naturally occurring somatic motoneuron death in a teleost angelfish, Pterophyllum scalare, Neurosci. Lett., 145-148, 19990101
  60. Axon projections of reciprocal inhibitory interneurons in the spinal cord o young Xenopus tadpoles and implications for the pattern of inhibition during swimming and struggling, J. Comp. Neurol., 504-518, 19980801
  61. Central circuits controlling locomotion in young frog tadpoles, Ann. New York Acad. Sci., 19-34, 19980101
  62. Developmental changes in the swimming behavior and underlying motoneuron activity in the larval angelfish, Pterophyllum scalare, Zool. Sci., 229-234, 19960601
  63. Blood properties and cardiovascular function after the cannulation into the dorsal aorta in carp, Cyprinus carpio, Journal of Applied Biological Science., 35, 139-148, 19960401
  64. Spinal and parachordal neurons in the eel leptocephali, Anguilla japonica, Neurosci. Lett., 106-208, 19950901
  65. Persistent relaxation of the adductor muscle of oyster Crassostrea gigas induced by magnesium ion, Fish Sci., 241-244, 19950601
  66. Modulation of the buccal muscle contraction by identified serotonergic and peptidergic neurons in the snail Achatina fulica, J. Exp. Biol., 729-738, 19950401
  67. Diverse activity of a neuropeptide ACEP-1 isolated from the atria of the African giant snail, Peptide Chem, 153-156, 19941201
  68. Neural control of rhythmic bnccal motor activity in molluscs, Comparative Biochemistry and Physiology part A, 107, 269-276, 19940401
  69. Structure and function of the molluscan myoactive tetradecapeptides, Zoological Science, 257-265, 19930401
  70. Identified neurones involved in the control of rhythmic bucal motor activity in the snail Achatina fulica, J. Exp. Biol., 117-133, 19921201
  71. Structure and function of neuropeptides containing a D-amino acid residue isolated from the African giant snail Achatina fulica, Peptide Chem, 321-326, 19921101
  72. Neural control of the buccal muscle movement in the African giant snail Achatina fulica, J. Exp. Biol., 415-433, 19911201
  73. Purification of achatin-1 from the atria of the African giant snail, Achatina fulica, and its possible function, Biochem. Biophys. Res. Common, 847-853, 19910701
  74. A novel cardia-excitatory peptide isolated from the atria of the African giant snail, Achatina fulica, Biochem. Biophysic. Res. Commun., 777-783, 19900601
  75. A Design of Neural Signal Sensing LSI with Multi-Input-Channels, IEICE Trans. Fundamentals, A, 87(2), 376-383, 20040201
  76. Measurement of emotional states of zebrafish through integrated analysis of motion and respiration using bioelectric signals, SCIENTIFIC REPORTS, 11(1), 187, 20210108
  77. ★, Recording the ventilation activity of free-swimming zebrafish and its application to novel tank tests, PHYSIOLOGY & BEHAVIOR, 244, 113665, 20220201

Publications such as books

  1. 2021, Death-feigning in Insects, Mechanism and Function of Tonic Immobility, Springer, 2021, Scholarly Book, Joint work, E, 978-981-336-597-1, 181, 159-178
  2. 1995/02, The spinal nerves of the eel leptocephali Anguilla japonica run in a mucous substance occupying most of the trunk, 1995, 2, Joint work

Invited Lecture, Oral Presentation, Poster Presentation

  1. Bold goldfish in behavioral neuroscience, Yoshida, Masayuki, The 2nd AsiaEvo Conference, 2021/08/16, With Invitation, English, Taiwan
  2. A biopsychological approach to investigating the neural basis of fish emotions, YOSHIDA Masayuki, International Stress and Behavior Conference, 2018/09/09, With Invitation, English, The International Stress and Behavior Society, Ube, Japan

External Funds

Acceptance Results of Competitive Funds

  1. 2020, 2022
  2. 2020, 2022
  3. 2016, 2018

Social Activities

Organizing Academic Conferences, etc.

  1. 2019/05, 2019/05