Major olivocortical and olivonuclear topographic projection pattern in the rat
| Group | Inferior olive | Cerebellar cortex | Cerebellar nuclei | |||||
|---|---|---|---|---|---|---|---|---|
| Subnucleus | Subareas | Aldolase C a | Zone module b | Subarea | Cytoarchitecture c | Ruigrok and Voogd's case d | ||
| I | Subnucleus a (c-MAO) | Caudal | 1+//1+ | A | FN, ventral (medial) | Small/mid-size, Mround/polygonal | 547R | |
| Intermediate | 2+//3+ (medial) | A (AX) | FN, ventral (lateral) | |||||
| Rostral | 2+//3+ (lateral) | A (AX) | ICG, ventral | Part of 439R | ||||
| r-MAO | 4+//5+ | C2 | PIN, dorsolateral | Large, round, moderately or densely packed | 548R, 205, part of 46 | |||
| v-PO | 5+//6+ | D1 | DN, caudal | Part of 259R | ||||
| d-PO | 6+//7+ | D2 | DN, rostrolateral | 480R, 255, 245L | ||||
| II | ||||||||
| IIa | β | Caudal e | a+//2+ (medial) (VIa, IX) | A | FN, ventrocaudal (medial) | Small/mid-size, round/polygonal | Part of 118, part of 408L | |
| Central and rostral | a+//2+ (lateral) (VIa, IX) | A | FN, ventrocaudal (lateral) | Part of 408L, 72L | ||||
| IIb | Subnucleus c (c-MAO) | Medial | a+//2+, (VIb–VII) | A | FN, midcaudal (medial) | Part of 118 | ||
| Lateral | Caudal | c+//4b+ | Lateral A | FN, midcaudal (dorsolateral) | ||||
| Rostral | d+//5a+ | Lateral A | FN, midcaudal (lateral) | |||||
| IIa | DMCC, caudal DM, caudomedial v-PO | 2b+//4+ | X-CX | PIN, ventral | Small/mid-size, round/fusiform | Part of 440R | ||
| III | Subnucleus b (cMAO) | Lateral | Caudal | 1−(med)//1− | A | FN, rostrodorsal (medial) | Large, polygonal | 559R |
| Intermediate | 1−(lat)/a−//2− | A (A1) | FN, rostrodorsal (lateral) | |||||
| Rostral | 2a−//3− | X | ICG, dorsal | Part of 439R | ||||
| Medial | Caudolateral | 2b−//4a− | Lateral A | DLP, rostral | Part of 116 | |||
| Caudomedial | c−//4b− | Lateral A | DLP, dorsal | Part of 116 | ||||
| Intermediate | d−//5a− | Lateral A | DLP, central | 66 | ||||
| Rostral | 3b−//e2− | CX | PIN, dorsomedial | Part of 46 | ||||
| IV | d-DAO | Medial and central | 2−//4− | B | LVN and AICG | Very large, polygonal, sparsely packed (LVN); polygonal, small (AICG) | Part of 192R, 189, 188R, 480L, 415R | |
| Lateral pole | b+//f+ | |||||||
| v-DAO | Caudolateral | 3+//e1+ | C1 | DMC (caudomedial AIN) | Small, polygonal | Part of 459R | ||
| Lateral | b−//f− | C1 | AIN, rostromedial | |||||
| Central | 3−//e1− | C1 | AIN, central | Mid-size, polygonal, | 547L | |||
| Rostromedial | 4−//5− | C3 | AIN, lateral | 559L | ||||
| DM | Central and rostral | 5−//6− | D0 | DLH | Mid-size/large, polygonal | Part of 75R, 440L, 202, 415L | ||
| V | DC and VLO | Flocculus and nodulus f | v-DN and d-Y | Small/mid-size, round/fusiform | Part of 192R, 209 | |||
See the legend to Fig. 1 for abbreviations.
↵ aAldolase C compartment as a major termination area (Sugihara and Shinoda, 2004). See Results for details.
↵ b Voogd and Bigaré, 1980; Buisseret-Delmas and Angaut, 1993; Voogd et al., 2003; Voogd and Ruigrok, 2004; Sugihara and Shinoda, 2004.
↵ cIn this column, the density of neurons was ″moderately packed″ unless specified otherwise.
↵ dCases reported by Ruigrok and Voogd (2000) with nearly equivalent projection.
↵ eIncluding caudal subnucleus c.