Specific and permanent deficits in instrumental avoidance responding following forebrain ablation in the goldfish.

Fr, Hainsworth; Jb, Overmier; Ct, Snowdon

doi:10.1037/h0024143

Cited by 50 publications

(36 citation statements)

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“…No gross changes in locomotion, posture, or feeding result from forebrain ablation in the fish (Segaar, 1965). And, while classical conditioning proceeds normally in fish with forebrain ablation (Overmier & Curnow, 1969), instrumental active and passive avoidance are severely disrupted (Hainsworth, Overmier, & Snowden, 1967;Kaplan & Aronson, 1969;Overmier & Flood, 1969;Savage, 1969) and original acquisition in instrumental appetitive tasks is impaired (Savage & Swingland, 1969;Flood & Overmier, 1971).…”

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Reversal learning in forebrain ablated and olfactory tract sectioned teleost, Carassius auratus

1972

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Groups of goldfish with forebrain ablation and the olfactory tract sectioned were taught a food-motivated nondiscriminative choice in a Y-maze. Criterion choice behavior was followed by successive reversal learning. Both groups successfully acquired each task but the fish with forebrain ablation were slower to eliminate errors in the reversals than were the fish with the olfactory tract sectioned. There were no latency differences between groups on any tasks. It was concluded that the teleost forebrain may, in part, function to provide inhibitory control over previously acquired responses.

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Reversal learning in forebrain ablated and olfactory tract sectioned teleost, Carassius auratus

1972

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“…What is clear, however, is that it plays a role in various forms of behavior, such as avoidance learning (Hainsworth et al 1967;Overmier and Gross 1974), instrumental conditioning if the reinforcer is temporally or spatially separated from the learned response (Savage 1969;Flood and Overmier 1971), habituation (Peeke et al 1972;Rooney and Laming 1986), and spatial learning (Warren 1961;Frank et al 1972). In all these reports, lesions of the telencephalon caused an impairment in learning.…”

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Long-term habituation to spatial novelty in blind cave fish (Astyanax hubbsi): role of the telencephalon and its subregions.

Riedel¹

1998

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Blind cave fish, when released into a novel environment, show a typical exploratory behavior characterized by high swim speed along walls shortly after release. This behavior wanes during prolonged exposure and thus may reflect habituation to novelty. As the hippocampus of mammals, which plays a crucial role in spatial learning, is part of the telencephalon, the possible involvement of this brain structure of fish was investigated in exploratory behavior. Ablation of the whole telencephalon or bilateral removal of dorsal parts of the hemispheres reduced activity; in contrast, unilateral lesions of one hemisphere, bilateral lesions of dorsal and dorsoventral parts, and removal of olfactory bulbs increased activity. However, the time course of habituation in a novel environment remained unchanged, except for ablated animals in which there was virtually no habituation in swim speed. These data suggest that the telencephalon of fish may not participate in long-term habituation to spatial novelty but, rather, support the notion of the telencephalon being involved in generation of arousal.

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“…Hainsworth, Overmier, and Snowdon (1967) on the effects of telecenphalic ablation during the acquisition of an avoidance task in fish. The authors tested normal, sham operated, or forebrain ablated goldfish in the acquisition, extinction, and retention of an instrumental avoidance response with either a short or a long delay between operations and testing.…”

Section: Emotional Learning: Avoidancementioning

confidence: 99%

Mecanismos neuronales del aprendizaje en los peces teleósteos

Hurtado-Parrado¹

2010

Univ Psychol

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a b s t r a C tTwo predominant approaches for studying the neurobiology of learning in fish are reviewed: brain lesions and chemical stimulation. Habituation, sensitization, Pavlovian Conditioning, spatial behavior, and emotional learning are the specific processes analyzed. Regarding the effect of brain lesions, telencephalic ablations produced impairment of habituation learning; conversely, cerebellum lesions caused deficiencies in classical conditioning of eye-retraction and spatial learning (similar effects observed in mammals suggest that the functions of the cerebellum may have evolved early in vertebrate history). Medium Pallium (MP) areas have been identified as critical for emotional learning in fish. Furthermore, neurobehavioral functions of MP seem to be similar to the functions of the amygdala in mammals. Relating to neurochemical processes, NMDA receptor antagonists affected the acquisition of avoidance and fear conditioning in a dose-dependent manner. Alternatively, Nitric Oxide (NO) and cyclic Guanosine Monophosphate (cGMP) seem to be involved in the consolidation process of emotional learning. Keywords authorNeurobehavioral functions, neurochemical functioning, teleost fish, learning processes, spatial learning, Medium Lateral Pallium. Keywords plusTeleost Fish, Neurochemistry, Cerebrum, Injuries. r e s u m e n Se revisaron dos aproximaciones al estudio de la neurobiología del aprendizaje en peces teleósteos: lesiones cerebrales y estimulación química. Respecto al efecto de lesiones cerebrales, la literatura reporta que las ablaciones del telencéfalo producen deficiencias en habituación, mientras que las lesiones en el cerebelo afectan el condicionamiento clásico de retracción ocular y aprendizaje espacial (efectos similares observados en mamíferos sugieren que las funciones del cerebelo pudieron haber evolucionado tempranamente en la historia de los vertebrados). Áreas del Medium Pallium (MP) parecen ser vitales en el aprendizaje emocional de los peces; más aún, las funciones del MP aparentan ser similares a las de la amígdala en mamíferos. Con respecto a procesos neuroquímicos, los antagonistas de los receptores NMDA, mostraron afectar la adquisición de condicionamiento de evitación y miedo. Por último, el óxido nítrico y el guanosín monofosfato cíclico han sido relacionados con los procesos de consolidación del aprendizaje emocional. Palabras clave autorFuncionamiento neuroquímico, peces teleósteos, aprendizaje espacial, procesos de aprendizaje, Medium Pallium Lateral.

show abstract

Specific and permanent deficits in instrumental avoidance responding following forebrain ablation in the goldfish.

Cited by 50 publications

References 8 publications

Reversal learning in forebrain ablated and olfactory tract sectioned teleost, Carassius auratus

Reversal learning in forebrain ablated and olfactory tract sectioned teleost, Carassius auratus

Long-term habituation to spatial novelty in blind cave fish (Astyanax hubbsi): role of the telencephalon and its subregions.

Mecanismos neuronales del aprendizaje en los peces teleósteos

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