Retinal projections to the midline and intralaminar thalamic nuclei in the common marmoset (Callithrix jacchus)

Retinopetal Neurons Located in the Diencephalon of the Japanese Monkey (Macaca fuscata)

“…However, this possibility can be ruled out, as previously reported 26) , because no labeled axonal terminals surrounded the labeled nerve cell bodies and dendrites, only a few labeled nerve cell bodies were present, and the label concentration was relatively high. The retrogradely labeled neurons in the lateral geniculate nucleus might form a retina-lateral geniculate nucleusretina feedback loop, playing a fundamental role in the modulation of retinal sensitivity related to either eye movements or the location of significant visual stimuli.…”

“…Although thalamic midline nuclei as a whole have been considered to be part of a nonspecific thalamocortical system (for a review see Ref. 25), the most ventral nuclei, the nucleus reuniens, was recently suggested to act as a critical relay in the transfer of stimulations from the medial prefrontal cortex to the hippocampus and possibly to coordinate limbic and sensorimotor functions 26,27) . In consideration of this evidence, we suggest that the retinopetal neurons located in the midline nucleus may receive information related to the various limbic and limbic-associated structures for convergence and that part of this information might subsequently be transferred to the retina for modulation of the light response.…”

Limbic thalamus and state-dependent behavior: The paraventricular nucleus of the thalamic midline as a node in circadian timing and sleep/wake-regulatory networks

“…In the so-called "extended circadian system", that includes numerous brain regions potentially involved in circadian rhythm regulation, PVT is the only thalamic cell group that receives a direct input from both the SCN and the intergeniculate leaflet (Morin, 2013). Interestingly, some retinal fibers also reach directly PVT, as well as the other thalamic midline nuclei and the intralaminar nuclei, as described in the marmoset (Cavalcante et al, 2005), and in the rodent rock cavy (Nascimento et al, 2008).…”

Immunocytochemical characterization of the pregeniculate nucleus and distribution of retinal and neuropeptide Y terminals in the suprachiasmatic nucleus of the Cebus monkey

“…This technique has been successfully applied in primates to trace retinal projections to several targets (Angelucci et al, 1996;Cavalcante et al, 2005;Costa et al, 1999;Frazão et al, 2008).…”