Research Interests
I
am interested in the diversity and evolution of mammalian brains:
correlation of specializations in brain sensory systems with specialized behavioral and structural adaptations. Methods in use include comparisons
of brain structures, across species, genuses, families, orders and
classes, using the extensive Michigan State collection of mammalian
and other vertebrate brains; experimentation with various methods
of electronic imaging of brain structures, especially as related
to quantitative assessment of structural specializations; and correlation
of brain diversity with computerized analysis of phylogenetic relationships.
The major current project is a collaborative effort with the National
Museum of Health and Medicine in Washington, D. C. and the University
of Wisconsin-Madison, to optimize access to specimen materia ls in
Brain Collections worldwide, primarily through images distributed
through digital electronic media, especially Internet presentations
and CD-ROMs. Details of this project, supported by the National
Science Foundation, can be found on the two Internet Web Sites above.
Please
feel free to contact me if you have any questions about my research.
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Selected Publications
Search all publications in the NCBI Journal Database
Marino L, Sudheimer K, McLellan WA, Johnson JI 2004 Neuroanatomical Structure of the Spinner Dolphin (Stenella longirostris orientalis) Brain from Magnetic Resonance Images. The Anatomical Record Part A 279a:601-610
Johnson, J. I., J. A. W. Kirsch, R. L. Reep, and R. C. Switzer 1994 Phylogeny through brain traits: More characters for the analysis of mammalian evolution. Brain, Beh. and Evolution, 43: 319-347.
Johnson, J. I. 1990 Comparative development of somatic sensory cortex, Ch. 15 in E. G. Jones and A. Peters, eds., Cerebral Cortex, vol. 8B, Comparative Structure and Evolution of Cerebral Cortex. New York: Plenum. pp. 331-445.
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John
I. Johnson 