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. Author manuscript; available in PMC: 2010 Jun 24.
Published in final edited form as: Brain Res. 2009 Mar 6;1277:115–129. doi: 10.1016/j.brainres.2009.02.050

Figure 1.

Figure 1

Schematic of sensory system organizations, cellular birthdates, anatomical circuitry, and functional connectivity. The auditory, visual, and olfactory systems discussed in this review are diagrammed from left to right as peripheral to central. Colored vertical bars represent the birthdates of each cell type/nucleus listed, with the darkest color representing the peak in histogenesis. Continuous histogenesis of OSNs is designated by the uniformly colored bar with a downward arrow beyond P10. Open circle connections represent anatomical evidence of connections, either by light or electron microscopy. Closed circle connections represent demonstrated functional connectivity, either by electrophysiological recording or c-fos immunoreactivity. Stars indicate data are from rat. The colored double bar connections represent the earliest known date by which the peripheral-to-central circuit can be functionally active. Abbreviations- E= embryonic day; P= postnatal day; HC= hair cell; SGC= spiral ganglion cell; VCN= ventral cochlear nucleus; LSO= lateral superior olive; mTB= medial nucleus of the trapezoid body; C= cone photoreceptor; R= rod photoreceptor; H= horizontal cell; B= bipolar cell; A= amacrine cell; G= retinal ganglion cell; LGN= lateral geniculate nucleus; VC-IV- layer IV of the visual cortex; OSN= olfactory sensory neuron; M/T= mitral and tufted cells; PC-1a= layer 1a of piriform cortex. Numbers in parenthisis refer to the following references: 1, Ruben, 1967; 2, Koundakjian et al., 2007, 3, Glowatzki and Fuchs, 2002; 4, Wu and Oertel, 1987; 5, Martin and Rickets, 1981; 6, Pierce, 1967; 7, Howell et al., 2007; 8, P Mathers personal communication; 9, Ene et al., 2003; 10, Hoffpauir & Spirou personal communication; 11, Pierce, 1973; 12, Cepko et al., 1996; 13, Young, 1985; 14, Blanks et al., 1974; 15, Olney, 1968; 16, Rich et al., 1997; 17, Sharma et al., 2003; 18, Sherry et al., 2003; 19, Tian and Copenhagen, 2003; 20, Mooney et al., 1996; 21, Wang et al., 2007; 22, Rapaport et al., 2004; 23, Godement et al., 1984; 24, Angevine, 1970; 25, Gardette et al., 1982; 26, Del Rio et al., 2000; 27, Hanganu et al., 2006; 28, Polleux et al., 1997; 29, Hinds, 1968; 30, Blanchart et al., 2006; 31, Blanchart et al., 2008; 32, Hinds and Hinds, 1976; 33, Mair and Gesteland, 1982; 34, Guthrie and Gall, 2003; 35, Walz et al., 2006; 36, Schwob and Price, 1984; 37, Hinds and Angevine, 1965.