4,683 research outputs found
Morphology, dendritic field size, somal size, density, and coverage of M and P retinal ganglion cells of dichromatic Cebus monkeys
No full textMale Cebus monkeys are all dichromats, but about two thirds of the females are trichromats. M and P retinal ganglion cells were studied in the male Cebus monkey to investigate the relationship of their morphology to retinal eccentricity. Retinal ganglion cells were retrogradely labeled after optic nerve deposits of biocytin to reveal their entire dendritic tree. Cebus M and P ganglion cell morphology revealed by biocytin retrograde filling is similar to that described for macaque and human M and P ganglion cells obtained by in vitro intracellular injection of HRP and neurobiotin. We measured 264 and 441 M and P ganglion cells, respectively. M ganglion cells have larger dendritic field and cell body size than P ganglion cells at any comparable temporal or nasal eccentricity. Dendritic trees of both M and P ganglion cells are smaller in the nasal than in the temporal region at eccentricities greater than 5 mm and 2 mm for M and P ganglion cells, respectively. The depth of terminal dendrites allows identification of both inner and outer subclasses of M and P ganglion cells. The difference in dendritic tree size between inner and outer cells is small or absent. Comparison between Cebus and Macaco shows that M and P ganglion cells have similar sizes in the central retinal region. The results support the view that M and P pathways are similarly organized in diurnal dichromat and trichromat primates.</p
U of M Professor and Author Brenda Child featured during annual Ice Cream Social on Wed., Aug. 15, 2012
No full textTollefson, Elizabeth. (2012). U of M Professor and Author Brenda Child featured during annual Ice Cream Social on Wed., Aug. 15, 2012. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/222897
Old Fashioned Ice Cream Social at the U of M, Crookston Features Author Gayla Marty on Wed., Aug. 18, 2010, from 2-4 p.m.
No full textTollefson, Elizabeth. (2010). Old Fashioned Ice Cream Social at the U of M, Crookston Features Author Gayla Marty on Wed., Aug. 18, 2010, from 2-4 p.m.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/222491
Excitement Builds Around Visit by Pulitzer Prize Winning Author and Historian Taylor Branch on January 20, 2014, at U of M Crookston
No full textTollefson, Elizabeth. (2013). Excitement Builds Around Visit by Pulitzer Prize Winning Author and Historian Taylor Branch on January 20, 2014, at U of M Crookston. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/223385
Pulitzer Prize Winning Author and Historian Taylor Branch to Speak at the U of M Crookston on Monday, January 20, 2014
No full textTollefson, Elizabeth. (2013). Pulitzer Prize Winning Author and Historian Taylor Branch to Speak at the U of M Crookston on Monday, January 20, 2014. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/223383
"Exploring Our Sexualities" - Noted Author and Activist Robyn Ochs to Present Workshop and Interactive Presentation at U of M Crookston on Wednesday, April 22, 2009
No full textTollefson, Elizabeth. (2009). "Exploring Our Sexualities" - Noted Author and Activist Robyn Ochs to Present Workshop and Interactive Presentation at U of M Crookston on Wednesday, April 22, 2009. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/222053
M and P retinal ganglion cells of the owl monkey: morphology, size and photoreceptor convergence
No full textWe have estimated photoreceptor convergence to M and P retinal ganglion cells of two closely related nocturnal (owl monkey, Aotus) and diurnal (capuchin monkey, Cebus) anthropoids. Rod convergence is higher in the owl monkey retina while cone convergence to both M and P cells are very similar in the retinas of the owl monkey and the capuchin monkey. These results indicate that during evolution, the owl monkey retina has undergone changes compatible with a more nocturnal lifestyle, but kept a cone to ganglion cell relation similar to that found in diurnal primates
M and P retinal ganglion cells of diurnal and nocturnal new-world monkeys
No full textM and P retinal ganglion cell morphology revealed by bio- cytin retrograde labelling was compared in two closely related New-World monkeys, Cebus and Aotus, to investigate whether nocturnal and diurnal species of primates have similar cell classes. Monkey and cat ganglion cells from regions of matching cell class densities were also compared. Cat a, cat /3, Aotus M, and Cebus M cells were similar in many aspects, but Cebus M cells had higher branching density. Cebus and Aotus P cells formed a distinct group and represent a primate specialization com-mon to diurnal and nocturnal simians.</p
Author to be Featured during Ice Cream Social at U of M Crookston on Wed., Aug. 17, 2011; "Cooking Up the Good Life" Highlights Recipes Based on Local Foods
No full textTollefson, Elizabeth. (2011). Author to be Featured during Ice Cream Social at U of M Crookston on Wed., Aug. 17, 2011; "Cooking Up the Good Life" Highlights Recipes Based on Local Foods. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/222736
Two Presentations by Internationally-renowned Speaker, Author, Explorer Broughton Coburn Slated for the U of M Crookston on Thursday, November 18, 2010, in Kiehle Auditorium; Presentations at Noon and 7 p.m. are Free and the Public is Invited
No full textTollefson, Elizabeth. (2010). Two Presentations by Internationally-renowned Speaker, Author, Explorer Broughton Coburn Slated for the U of M Crookston on Thursday, November 18, 2010, in Kiehle Auditorium; Presentations at Noon and 7 p.m. are Free and the Public is Invited. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/222532
- …
