The evolution of the dorsal pallium in the telencephalon of amniotes: Cladistic analysis and a new hypothesis

Butler, Ann B.

doi:10.1016/0165-0173(94)90004-3

Cited by 206 publications

(170 citation statements)

References 193 publications

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“…Thus, these cortical areas (close to the hippocampus) may be involved in nonspatial functions (i.e., temporal attribute processing). In our case, the lesions of the LP extended to the Dld, which has been proposed as homologous to the isocortex of tetrapods (Braford and Northcutt, 1974;Northcutt and Braford, 1980;Northcutt and Davis, 1983;Butler, 1994). Although further studies on the functional implications of the fish lateral pallium are necessary, our results present a thought-provoking scene in which the functional involvement of the teleost fish LP is discussed in functional and theoretical terms similar to those for hippocampal formation.…”

Section: Involvement Of the Goldfish Medial Pallium In Avoidance Condmentioning

confidence: 76%

Avoidance Response in Goldfish: Emotional and Temporal Involvement of Medial and Lateral Telencephalic Pallium

Portavella¹,

Torres²,

Salas³

2004

J. Neurosci.

244

184

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The hippocampus and the amygdala are involved in avoidance learning in mammals. The medial and lateral pallia of actinopterygian fish have been proposed as homologous to the mammalian pallial amygdala and hippocampus, respectively, on the basis of neuroanatomical findings. This work was aimed at studying the effects of ablation of the medial telencephalic pallia (MP) and lateral telencephalic pallia (LP) in goldfish on the retention of a conditioned avoidance response previously acquired in two experimental conditions. In the first experiment, fish were trained in nontrace avoidance conditioning. In the second experiment, fish were trained in trace avoidance conditioning in which temporal cues were crucial for the learning process. An MP lesion affected the retention of the avoidance response in both procedures; in contrast, an LP lesion impaired the retention only in the trace-conditioning procedure. These data support the presence of two different systems of memory in fish, based on discrete telencephalic areas: the MP, involved in an emotional memory system; and the LP, involved in a spatial, relational, or temporal memory system. Moreover, these differential effects were similar to those produced by amygdalar and hippocampal lesions in mammals. We conclude that these specialized systems of memory could have appeared early during phylogenesis and could have been conserved throughout vertebrate evolution.

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Section: Involvement Of the Goldfish Medial Pallium In Avoidance Condmentioning

confidence: 76%

Avoidance Response in Goldfish: Emotional and Temporal Involvement of Medial and Lateral Telencephalic Pallium

Portavella¹,

Torres²,

Salas³

2004

J. Neurosci.

244

184

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“…An overwhelming body of data now supports the conclusion that the dorsal three-fourths of the cerebrum in birds (including what has been termed the neostriatum, hyperstriatum, and archistriatum) is pallial in nature and therefore homologous as a field to the brain region of mammals that includes the neocortex, claustrum, and pallial amygdala (Karten, 1969(Karten, , 1991Gü ntü rkü n, 1991;Wild et al, 1993;Butler, 1994;Veenman et al, 1995b;Striedter, 1997;Smith-Fernandez et al, 1998;Medina and Reiner, 2000;Puelles et al, 2000). Our goal in revising the pallial terminology for birds was thus to replace names that possessed incorrect implications of homology to parts of the basal ganglia (e.g., the neostriatum, hyperstriatum, and archistriatum) with names that possessed correct implications of homology, or at the very least not incorrect ones.…”

Section: Revised Pallial Telencephalic Terminology General Consideratmentioning

confidence: 94%

Revised nomenclature for avian telencephalon and some related brainstem nuclei

Reiner

Perkel

Bruce

et al. 2004

J of Comparative Neurology

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The standard nomenclature that has been used for many telencephalic and related brainstem structures in birds is based on flawed assumptions of homology to mammals. In particular, the outdated terminology implies that most of the avian telencephalon is a hypertrophied basal ganglia, when it is now clear that most of the avian telencephalon is neurochemically, hodologically, and functionally comparable to the mammalian neocortex, claustrum, and pallial amygdala (all of which derive from the pallial sector of the developing telencephalon). Recognizing that this promotes misunderstanding of the functional organization of avian brains and their evolutionary relationship to mammalian brains, avian brain specialists began discussions to rectify this problem, culminating in the Avian Brain Nomenclature Forum held at Duke University in July 2002, which approved a new terminology for avian telencephalon and some allied brainstem cell groups. Details of this new terminology are presented here, as is a rationale for each name change and evidence for any homologies implied by the new names.Revisions for the brainstem focused on vocal control, catecholaminergic, cholinergic, and basal ganglia-related nuclei. For example, the Forum recognized that the hypoglossal nucleus had been incorrectly identified as the nucleus intermedius in the Karten and Hodos (1967) pigeon brain atlas, and what was identified as the hypoglossal nucleus in that atlas should instead be called the supraspinal nucleus. The locus ceruleus of this and other avian atlases was noted to consist of a caudal noradrenergic part homologous to the mammalian locus coeruleus and a rostral region corresponding to the mammalian A8 dopaminergic cell group. The midbrain dopaminergic cell group in birds known as the nucleus tegmenti pedunculopontinus pars compacta was recognized as homologous to the mammalian substantia nigra pars compacta and was renamed accordingly; a group of ␥-aminobutyric acid (GABA)ergic neurons at the lateral edge of this region was identified as homologous to the mammalian substantia nigra pars reticulata and was also renamed accordingly. A field of cholinergic neurons in the rostral avian hindbrain was named the nucleus pedunculopontinus tegmenti, whereas the anterior nucleus of the ansa lenticularis in the avian diencephalon was renamed the subthalamic nucleus, both for their evident mammalian homologues.For the basal (i.e., subpallial) telencephalon, the actual parts of the basal ganglia were given names reflecting their now evident homologues. For example, the lobus parolfactorius and paleostriatum augmentatum were acknowledged to make up the dorsal subdivision of the striatal part of the basal ganglia and were renamed as the medial and lateral striatum. The paleostriatum primitivum was recognized as homologous to the mammalian globus pallidus and renamed as such. Additionally, the rostroventral part of what was called the lobus parolfactorius was acknowledged as comparable to the mammalian nucleus accumbens, which, together with the...

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“…In fact, an inside-out pattern of neurogenesis has not been reported previously in any nonmammalian vertebrate (Goffinet et al, 1986). This suggests that one "key event" in the evolution of mammalian neocortex was the acquisition of the ability of young neocortical neurons to migrate past older cells and thus establish an inside-out pattern of neurogenesis (Butler, 1994). This evolutionary scenario rests on dubious evidence, however, because rather different techniques were used to determine neuronal birth dates in mammals and other vertebrates.…”

mentioning

confidence: 89%

Cell Migration and Aggregation in the Developing Telencephalon: Pulse-Labeling Chick Embryos with Bromodeoxyuridine

Striedter

Keefer

2000

J. Neurosci.

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Previous studies had concluded that the avian telencephalon develops according to an outside-in schedule of neurogenesis, with relatively little migration of young neuroblasts past older cells. These previous studies had, however, been based on the "cumulative labeling" method, which is less accurate than the "pulselabeling" method typically used in mammals. In the present study, we pulse-labeled chick embryos by injecting low doses of the thymidine analog bromodeoxyuridine (BrdU) directly into the circulatory system of chick embryos at 6 d of incubation. The brains of these embryos were then examined for anti-BrdU-labeled cells at postinjection survival times from 30 min to 10 d. Comparisons across different survival times, as well as with cases in which BrdU was injected on day 7, suggested that our effective pulse duration is Ͻ24 hr. This was confirmed by injecting tritiated thymidine 24 hr after the BrdU and seeing no double-labeled cells. Several deviations from the previously reported pattern of telencephalic neurogenesis were also noted. Most importantly, the cells born on day 6 in the avian Wulst, the likely homolog of mammalian neocortex, end up homogeneously distributed throughout the Wulst, which suggests that many of them are migrating past older cells. Furthermore, the cells born on day 6 in the ventral hyperstriatum and dorsal neostriatum gradually (over the course of 2-3 d) aggregate into distinct multicellular clusters, which suggests that isochronic cells in these regions adhere preferentially to one another. Finally, the data reveal a proliferative subventricular zone similar to that observed in the ganglionic eminences of mammalian embryos.

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The evolution of the dorsal pallium in the telencephalon of amniotes: Cladistic analysis and a new hypothesis

Cited by 206 publications

References 193 publications

Avoidance Response in Goldfish: Emotional and Temporal Involvement of Medial and Lateral Telencephalic Pallium

Avoidance Response in Goldfish: Emotional and Temporal Involvement of Medial and Lateral Telencephalic Pallium

Revised nomenclature for avian telencephalon and some related brainstem nuclei

Cell Migration and Aggregation in the Developing Telencephalon: Pulse-Labeling Chick Embryos with Bromodeoxyuridine

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