Summary
In 38 squirrel monkeys 251 vocalization-producing electrode positions were tested for their positive and negative reinforcing properties. Two groups of vocalization-producing brain areas could be distinguished: One group in which the electrically elicited vocalization was independent of the accompanying reinforcement effect, and a second group in which vocalization and reinforcement effect were correlated. The first group included the anterior cingulate gyrus, the adjacent supplementary motor area, gyrus rectus, ventromedial edge of the capsula interna, caudal periaqueductal gray and adjacent parabrachial region. The second group consisted of the caudatum, septum, substantia innominata, amygdala, inferior thalamic peduncle, stria terminalis, midline thalamus, ventral and periventricular hypothalamus, substantia nigra, rostral periaqueductal gray, dorsolateral midbrain tegmentum and lateral medulla. It is hypothesized that the first group contains predominantly or exclusively “primary” vocalization subtrates; the second group is thought to be composed mainly of structures whose stimulation yields vocalization secondarily due to stimulus induced motivational changes.
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Abbreviations
- a:
-
nucl. accumbens
- aa:
-
area anterior amygdalae
- ab:
-
nucl. basalis amygdalae
- ac:
-
nucl. centralis amygdalae
- al:
-
nucl. lateralis amygdalae
- an:
-
nucl. anterior thalami
- anl:
-
ansa lenticularis
- aq:
-
substantia grisea centralis
- bc:
-
brachium conjunctivum
- ca:
-
nucl. caudatus
- cc:
-
corpus callosum
- cen:
-
nucl. centralis superior tegmenti
- cent:
-
centrum medianum
- ci:
-
capsula interna
- cin:
-
cingulum
- cl:
-
claustrum
- coa:
-
commissura anterior
- coli:
-
colliculus inferior
- cols:
-
colliculus superior
- csp:
-
tractus cortico-spinalis
- db:
-
fasciculus diagonalis Brocae
- dbc:
-
decussatio brachii conjunctivii
- f:
-
fornix
- gc:
-
gyrus cinguli
- gl:
-
corpus geniculatum laterale
- gm:
-
corpus geniculatum mediale
- gp:
-
globus pallidus
- gr:
-
gyrus rectus
- gs:
-
gyrus subcallosus
- h:
-
campus Foreli
- ha:
-
nucl. habenularis
- hi:
-
tractus habenulo-interpeduncularis
- hip:
-
hippocampus
- hya:
-
area hypothalamica anterior
- hyl:
-
area hypothalamica lateralis
- hyv:
-
nucl. ventromedialis hypothalami
- in:
-
nucl. interpeduncularis
- lap:
-
nucl. lateralis posterior thalami
- lav:
-
nucl. ventralis lateralis thalami
- le:
-
lemniscus lateralis
- lem:
-
lemniscus medialis
- lm:
-
fasciculus longitudinalis medialis
- m:
-
corpus mamillare
- md:
-
nucl. medialis dorsalis thalami
- mt:
-
tractus mamillo-thalamicus
- nst:
-
nucl. striae terminalis
- oi:
-
nucl. olivaris inferior
- ol:
-
fasciculus olfactorius Zuckerkandl
- os:
-
nucl. olivaris superior
- p:
-
pedunculus cerebri
- pmc:
-
brachium pontis
- po:
-
griseum pontis
- pro:
-
area praeoptica
- pu:
-
nucl. pulvinaris thalami
- put:
-
putamen
- re:
-
formatio reticularis
- rep:
-
nucl. reticularis tegmenti pontis
- rub:
-
nucl. ruber
- s:
-
septum
- sm:
-
stria medullaris
- sn:
-
substantia nigra
- st:
-
stria terminalis
- sto:
-
tria olfactoria lateralis
- subt:
-
subthalamus
- tec:
-
tractus tegmentalis centralis
- trz:
-
corpus trapezoideum
- va:
-
nucl. ventralis anterior thalami
- vpl:
-
nucl. ventralis postero-lateralis
- vpm:
-
nucl. ventralis postero-medialis
- zi:
-
zona incerta
- II:
-
tractus opticus
- IIch:
-
chiasma nervorum opticorum
- III:
-
n. oculomotorius and nucl. n. oculomotorii
- IV:
-
n. and nucl. n. trochlearis
- VI:
-
n. abducens and nucl. n. abducentis
- VII:
-
nucl. n. facialis
- VIII:
-
nucl. cochlearis
- IX:
-
n. hypoglossus
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Jürgens, U. Reinforcing concomitants of electrically elicited vocalizations. Exp Brain Res 26, 203–214 (1976). https://doi.org/10.1007/BF00238284
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DOI: https://doi.org/10.1007/BF00238284

