Table 6. Dominant retrograde labeling by injection site.
List of structures exhibiting 5% or more and 2.5%-5% of total labeling following injections of tracer into the ventral tegmental area, rostromedial tegmental nucleus and lateral habenula. Values in parentheses are means of three cases. SEMs are provided in Table 5.
| Injection site | 5% of total labeling and greater | 2.5% - 5% of total labeling |
|---|---|---|
| VTA | accumbens shell (8.9%) | lateral hypothalamus (4.6%) |
| ventral pallidum (5.2%) | accumbens core (3.3%) | |
| lateral preoptic area (5.2%) | lateral septum (3.2%) | |
| deep mesencephalic nucleus (2.9%) | ||
| medial preoptic area (2.7%) | ||
| dorsal periagueductal gray (2.7%) | ||
| parabrachial nucleus (2.6%) | ||
| RMTg | lateral habenula (6.1%) | lateral preoptic area (4.5%) |
| lateral hypothalamus (5.9%) | deep cerebellar nuclei (3.6%) | |
| superior colliculus, contralateral (5.2%) | dorsal periaqueductal gray (3.6%) | |
| deep mesencephalic nucleus (3.3%) | ||
| prelimbic cx (3.1%) | ||
| lateral septum (3.0%) | ||
| posterior hypothalamus (2.6%) | ||
| cingulate cx (2.5%) | ||
| parabrachial nucleus (2.5%) | ||
| LHb | lateral preoptic area (13.8%) | prelimbic cx (4.4%) |
| lateral hypothalamus (9.8%) | ventral pallidum (4.2%) | |
| LPO-LH transition region (6.9%) | juxtaparaventricular lateral hypothalamus (3.8%) | |
| lateral septum (5.9%) | ||
| superior colliculus, ipsilateral (3.7%) | ||
| cingulate cx (3.2%) | ||
| dorsal periaqueductal gray (3.2%) | ||
| medial preoptic area (2.6%) | ||
| posterior hypothalamus (2.6%) |