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melanopsin and associated ipRGCs play an important role in the entrainment of circadian rhythms Before Hattar's work, it was assumed that organisms entrained to daily light-dark cycles through the same mechanisms that are responsible for vision. However, case studies reported that some who were
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199:. He studied at Terra Sancta High School, a Catholic high school in Amman, from 1978 to 1988. He earned good grades in his classes and fell in love with biology when introduced to
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for his undergraduate studies, where he majored in
Biology and minored in Chemistry. His high marks earned him the honor of meeting
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and a leader in the field of non-image forming photoreception. He is the Chief of the
Section on Light and Circadian Rhythms at the
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completely blind could still entrain to these cycles. This observation, coupled with the discovery of melanopsin by
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Schmidt, Tiffany; Do, Michael; Dacey, Dennis; Lucas, Robert; Hattar, Samer; Matynia, Anna (9 November 2011).
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306:. NACS: Program in Neuroscience and Cognitive Science, University of Maryland, College Park. Archived from
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304:"NACS Event :: Atypical mammalian photoreceptors influence circadian rhythms, mood and learning"
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Hattar is known for his work in the area of chronobiology. He is credited with discovering that the
235:. Hattar completed his postdoctoral fellowship at the Solomon Snyder Department of Neuroscience at
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Reppert, Stephen; Weaver, D. R. (29 August 2002). "Coordination of circadian timing in mammals".
456:"Melanopsin-Positive Intrinsically Photosensitive Retinal Ganglion Cells: From Form to Function"
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Lucile & David
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in
Baltimore, MD. He is best known for his investigation into the role of
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203:. This passion inspired him to pursue a career in science. He attended
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Sansoni, Paola; Mercatelli, Luca; Farini, Alessandro (2015).
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to a
Jordanian father and a Lebanese mother. Raised in a
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intrinsically photosensitive retinal ganglion cells
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237:Johns Hopkins University School of Medicine
227:where he studied circadian regulation of a
332:. Johns Hopkins University. Archived from
591:JHU Biology Department: Dr. Hattar's page
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384:. Johns Hopkins University. 24 March 2015
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538:"The Young Investigators, April 8, 2004"
79:Fellowship for Science & Engineering
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282:Alfred P. Sloan Research Fellow, 2006
279:Albert Lehninger Research Award, 2004
626:American University of Beirut alumni
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149:National Institute of Mental Health
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77:David and Lucile Packard Foundation
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542:Dome | Johns Hopkins Medicine
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195:family, he planned on becoming a
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636:Johns Hopkins University faculty
82:Albert Lehninger Research Award
73:Alfred P. Sloan Research Fellow
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472:10.1523/JNEUROSCI.4132-11.2011
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201:Mendel's pea plant experiments
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217:American University of Beirut
153:National Institutes of Health
117:American University of Beirut
631:University of Houston alumni
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506:Sustainable Indoor Lighting
460:The Journal of Neuroscience
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358:. Johns Hopkins University
356:The Johns Hopkins Magazine
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621:Yarmouk University alumni
509:. Springer. p. 290.
183:Samer Hattar was born in
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330:"Samer Hattar - Biology"
241:Johns Hopkins University
157:Johns Hopkins University
113:Johns Hopkins University
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382:Department of Biology
225:University of Houston
121:University of Houston
611:Jordanian biologists
350:Hendricks, Melissa.
229:transcription factor
466:(45): 16094–16101.
425:10.1038/nature00965
417:2002Natur.418..935R
310:on 4 September 2014
243:. He is married to
205:Yarmouk University
49:Yarmouk University
411:(6901): 935–941.
378:"Rejji Kuruvilla"
274:Awards and honors
268:Ignacio Provencio
173:circadian rhythms
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89:Scientific career
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616:Chronobiologists
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167:(ipRGC) in the
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352:"Clock Wise"
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263:photopigment
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133:Samer Hattar
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109:Institutions
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20:Samer Hattar
388:27 December
169:entrainment
600:Categories
573:2013-04-24
290:References
255:See also:
161:melanopsin
59:Melanopsin
193:Christian
490:22072661
433:12198538
362:22 April
314:12 April
141:سامر حتر
27:سامر حتر
522:8 April
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413:Bibcode
233:aplysia
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197:priest
189:Jordan
137:Arabic
95:Fields
69:Awards
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209:Irbid
185:Amman
63:ipRGC
524:2015
511:ISBN
486:PMID
429:PMID
390:2016
364:2015
316:2013
179:Life
163:and
33:Born
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