Midbrain regions involved in call production in Java sparrows

Seller, T.J.

doi:10.1016/s0166-4328(80)80062-3

Cited by 4 publications

(10 citation statements)

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“…the dorsomedial nucleus of ICo) observed in the present study to give rise to projections to XIIts and the respiratory premotor nuclei. Although this is consistent with the finding that in some studies there is a direct relationship between lowest effective current intensity and proximity to the nucleus here identified anatomically as DM (e.g., Potash, 1970b;Brown, 1971;Seller, 1980), it is apparently not consistent with the fact that vocalization can be elicited, even with small electrodes and small currents, from regions of the midbrain at some distance from DM. Scheich et al (1983), for instance, show stimulation sites at the level of caudal MLd in the guinea fowl that were effective in eliciting natural calls at well below 50 µA.…”

Section: Identification and Location Of Dmsupporting

confidence: 71%

“…It has long been known that electrical stimulation of certain regions of the avian midbrain, collectively known as the ''midbrain call area,'' can elicit vocalizations (e.g., Popa and Popa, 1933;Lan, 1958;Brown, 1965Brown, , 1971Murphy and Phillips, 1967; Potash, 1970a,b;Delius, 1971;Peek and Phillips, 1971;Seller, 1980;Jahnke and Abs, 1982;Li and Lan, 1990). The most effective sites, i.e., those where vocalization can be elicited with the smallest amounts of current, correspond to a nuclear component of the intercollicular complex (ICo) in close proximity to rostral levels of the inferior colliculus, known as nucleus mesencephalicus lateralis, pars dorsalis (MLd).…”

Section: Indexing Terms: Avian; Vocalization; Respiration; Midbrain; mentioning

confidence: 99%

“…Outside DM, other sites frequently reported to be effective in eliciting vocalizations when stimulated are those within the nucleus mesencephalicus lateralis, pars ventralis (MLv), a broad region ventral to ICo through which courses the dispersed efferent outflow of DM as shown in the present study. Many DM axons also course immediately dorsal to the nucleus isthmi parvocellularis (Ipc), and some through the nucleus tegmenti pedunculo-pontinus, pars compacta (TPc), both nuclei previously thought to have a role in vocal control (Seller, 1980;Scheich et al, 1983).…”

Section: Identification and Location Of Dmmentioning

confidence: 99%

“…It contains neurons which have a respiratory-related rhythm in phase with expiration and which project to regions of the spinal cord containing motoneurons innervating abdominal expiratory muscles (Wild, 1993a). Some projections of DM, at least in a nonsongbird, are therefore such as to confirm its long-suspected role in mediating control of respiratoryvocal activity (Seller, 1980(Seller, , 1981. However, to date no systematic account of the full complement of the efferent projections of DM in either songbirds or nonsongbirds has been presented and, in view of the long history of the apparent involvement of the midbrain call area in respiratory-vocal mechanisms, is long overdue.…”

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confidence: 99%

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Projections of the dorsomedial nucleus of the intercollicular complex (DM) in relation to respiratory-vocal nuclei in the brainstem of pigeon (Columba livia) and zebra finch (Taeniopygia guttata)

1997

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Injections of neuronal tracers were made into the dorsomedial nucleus of the intercollicular complex (DM) of pigeons and zebra finches in order to investigate the projections of this nucleus which has long been implicated in respiratory-vocal control. Despite the fact that pigeons are nonsongbirds and zebra finches are songbirds, the projections were very similar in both species. Most descended throughout the brainstem, taking ventral and dorsal trajectories, which merged in the medulla. Those descending ventrally terminated upon the ventrolateral parabrachial nucleus (PBvl), the nucleus infraolivaris superior, a nucleus of the rostral ventrolateral medulla (RVL), and the nucleus retroambigualis (RAm). Those taking a dorsal trajectory via the occipitomesencephalic tract terminated in the tracheosyringeal part of the hypoglossal nucleus (XIIts), the suprahypoglossal region, and nucleus retroambigualis. There were also substantial projections throughout an arc extending between XIIts and RVL rostrally, and XIIts and RAm caudally. Neurons throughout this arc, which include inspiratory premotor neurons at levels straddling the obex and expiratory premotor neurons more caudally (in RAm), were retrogradely labeled from spinal injections. The DM projections were predominantly ipsilateral, but there were distinct contralateral projections to all the homologous nuclei in both species. All but the projections to PBvl and XIIts were reciprocal. In summary, the projections of DM suggest that it is able to influence all the key motor and premotor nuclei involved in patterned respiratory-vocal activity.

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Section: Identification and Location Of Dmsupporting

confidence: 71%

Section: Indexing Terms: Avian; Vocalization; Respiration; Midbrain; mentioning

confidence: 99%

Section: Identification and Location Of Dmmentioning

confidence: 99%

mentioning

confidence: 99%

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Projections of the dorsomedial nucleus of the intercollicular complex (DM) in relation to respiratory-vocal nuclei in the brainstem of pigeon (Columba livia) and zebra finch (Taeniopygia guttata)

1997

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“…Electrical stimulation of the DM results in the production of calls in a number of species, in both passerines and nonpasserines [Brown, 1971[Brown, , 1973Seller, 1981]. Lesions of this area result in apparent muteness [Brown, 1965b;Seller, 1980;Fukushima and Aoki, 2000]. In a detailed study of red-winged blackbirds (Agelaius phoeniceus) , electrical stimulation of DM triggered calls of relatively invariant structure [Brown, 1971].…”

mentioning

confidence: 99%

Vocal Parameters That Indicate Threat Level Correlate with FOS Immunolabeling in Social and Vocal Control Brain Regions

Ellis

Riters²

2011

Brain Behav Evol

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Transmitting information via communicative signals is integral to interacting with conspecifics, and some species achieve this task by varying vocalizations to reflect context. Although signal variation is critical to social interactions, the underlying neural control has not been studied. In response to a predator, black-capped chickadees (Poecile atricapilla) produce mobbing calls (chick-a-dee calls) with various parameters, some of which convey information about the threat stimulus. We predicted that vocal parameters indicative of threat would be associated with distinct patterns of neuronal activity within brain areas involved in social behavior and those involved in the sensorimotor control of vocal production. To test this prediction, we measured the syntax and structural aspects of chick-a-dee call production in response to a hawk model and assessed the protein product of the immediate early gene FOS in brain regions implicated in context-specific vocal and social behavior. These regions include the medial preoptic area (POM) and lateral septum (LS), as well as regions involved in vocal motor control, including the dorsomedial nucleus of the intercollicular complex and the HVC. We found correlations linking call rate (previously demonstrated to reflect threat) to labeling in the POM and LS. Labeling in the HVC correlated with the number of D notes per call, which may also signal threat level. Labeling in the call control region dorsomedial nucleus was associated with the structure of D notes and the overall number of notes, but not call rate or type of notes produced. These results suggest that the POM and LS may influence attributes of vocalizations produced in response to predators and that the brain region implicated in song control, the HVC, also influences call production. Because variation in chick-a-dee call rate indicates predator threat, we speculate that these areas could integrate with motor control regions to imbue mobbing signals with additional information about threat level.

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Effects of Inactivation of the Periaqueductal Gray on Song Production in Testosterone-Treated Male Canaries (Serinus canaria)

Haakenson

Balthazart

Ball

2020

eNeuro

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Male canaries (Serinus canaria) display seasonal changes in the motivation to sing which have been found to be dependent on the action of testosterone (T). During the breeding season when T is high, males sing at a higher rate compared with males with low T. The effect of T on song rate is known to be mediated by the medial preoptic nucleus (POM); however, it is unclear how T signaling in POM impacts song production. One Significance Statement Communication is essential for social species relying on coordinated behavior for survival and reproduction. However, the neural mechanisms underlying the motivation to engage in vocal communication are currently unknown. Here, we show that inhibition of the periaqueductal gray (PAG) increases the latency for male canaries to sing but does not influence features of song quality once they resume singing. These results indicate that the PAG is involved in regulating the motor initiation or the underlying motivation of the complex, learned behavior of singing but not of innate vocalizations, such as calls. Our findings suggest that the PAG is likely involved in transmitting preoptic signals to the song control system, probably via dopaminergic projections from this region to song control nuclei.

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Midbrain regions involved in call production in Java sparrows

Cited by 4 publications

References 0 publications

Projections of the dorsomedial nucleus of the intercollicular complex (DM) in relation to respiratory-vocal nuclei in the brainstem of pigeon (Columba livia) and zebra finch (Taeniopygia guttata)

Projections of the dorsomedial nucleus of the intercollicular complex (DM) in relation to respiratory-vocal nuclei in the brainstem of pigeon (Columba livia) and zebra finch (Taeniopygia guttata)

Vocal Parameters That Indicate Threat Level Correlate with FOS Immunolabeling in Social and Vocal Control Brain Regions

Effects of Inactivation of the Periaqueductal Gray on Song Production in Testosterone-Treated Male Canaries (Serinus canaria)

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