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| Brain Maps Index | MRI2010 |
| Reference Figures | 1,5 |
| Reference Text | 75-77 |
| Citation | Retrogradely labelled neurons were found in all visual areas (57.62% of labelled neurons) of the cerebral cortex, including areas 17, 18, 19, 21, PPc, PPr, 20a, 20b, PS, AEV, AMLS, PMLS, ALLS, PLLS, VLS and DLS. Amongst these areas those most strongly labelled included 18 (11.43%), PMLS (8.54%), 21 (8.08%), and AMLS (6.71%). Labelled neurons were located in the primary auditory cortex (9.15%) and the region of the posterior limb of the ectosylvian gyrus lateral to the primary auditory cortex that most likely represents higher order auditory cortex (15.70%) (Nelken et al., 2004). Several somatosensory cortical areas gave rise to collicular projections including (10.82% of labelled neurons), in order of intensity SIII (5.95%), PV (2.13%), SII (1.37%), and a very few from areas 3b (0.91%) and 3a (0.46%). The primary motor cortex only revealed few retrogradely labelled neurons (0.46%), however, within the putative supplementary motor area (SMA) (6.86%) and pre-SMA (2.59%), as well as in the pre-motor cortex (5.49%), several labelled neurons were identified. The prefrontal region of the cortex (Duque and McCormick, 2010), that region located anterior to the gigantocellular layer 5 neurons giving rise to the cortico-pontine tract, was devoid of labelled neurons. In the cerebral hemisphere contralateral to the injected superior colliculus retrogradely labelled neurons were re- stricted to three cortical areas. A substantial cluster was found in the pre-motor cortex (60% of labelled neurons in the contralateral hemisphere), and may reveal the location of the frontal eye field in the ferret. A smaller cluster was located in area SII of the somatosensory cortex (32%), and the odd labelled neuron was found in the SMA (8%). |
| Comments | |
| Map type | Adopted Deliniated |
| Defined brain sites | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Acronym Name | Acronym Full Name | Brain Sites Type Name |
| 3a | Proprioceptive somatosensory cortical area | Area_Ctx_2D |
| 3b | Primary somatosensory cortex | Area_Ctx_2D |
| 17 | primary visual cortex | Area_Ctx_2D |
| 18 | second visual cortical area | Area_Ctx_2D |
| 19 | third visual cortical area | Area_Ctx_2D |
| AEV | anterior ectosylvian visual area of ferret | Area_Ctx_2D |
| AMLS | anteromedial lateral suprasylvian visual area | Area_Ctx_2D |
| ALLS | anterolateral lateral suprasylvian visual area | Area_Ctx_2D |
| Aud | auditory cortex | Area_Ctx_2D |
| 20a | temporal visual area a | Area_Ctx_2D |
| 20b | temporal visual area b | Area_Ctx_2D |
| 21 | fourth visual cortical area | Area_Ctx_2D |
| DLS | dorsal lateral suprasylvian visual cortical area | Area_Ctx_2D |
| M1 | primary motor cortex | Area_Ctx_2D |
| PMLS | posteromedial lateral suprasylvian visual area | Area_Ctx_2D |
| PLLS | posterolateral lateral suprasylvian visual area | Area_Ctx_2D |
| PPc | posterior parietal caudal cortical area | Area_Ctx_2D |
| PPr | posterior parietal rostral cortical area | Area_Ctx_2D |
| PreMot | pre-motor cortex | Area_Ctx_2D |
| pre-SMA | pre- supplementary motor cortical area | Area_Ctx_2D |
| PS | posterior suprasylvian visual cortical area | Area_Ctx_2D |
| VLS | ventral lateral suprasylvian visual area | Area_Ctx_2D |
| Pul | pulvinar nucleus of the dorsal thalamus | Area_Ctx_2D |
| PV | parietoventral somatosensory cortical area | Area_Ctx_2D |
| SII | second somatosensory cortical area | Area_Ctx_2D |
| SIII | third somatosensory cortical area | Area_Ctx_2D |
| SMA | supplementary motor cortical area | Area_Ctx_2D |
| SC | superior colliculus | Nucleus_SubCtx_3D |
| VDT | visual dorsal thalamus | Nucleus_SubCtx_3D |
| LGN | lateral geniculate nucleus | Nucleus_SubCtx_3D |
| LP | lateral posterior nucleus of the dorsal thalamus | Nucleus_SubCtx_3D |