Forebrain lesions and retention of imprinting in domestic chicks

Salzen, Eric A.; Parker, Denis M.; Williamson, A. J.

doi:10.1007/bf00235808

Cited by 39 publications

(7 citation statements)

References 5 publications

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“…In chicks, lesions in that area drastically decreased visual imprintability and retention, as reported by Salzen et a. (5)(6)(7). But whether acoustic imprinting was similarly affected was not tested.…”

Section: Discussionmentioning

confidence: 94%

Acoustic imprinting leads to differential 2-deoxy-D-glucose uptake in the chick forebrain.

Maier¹,

Scheich²

1983

Proc. Natl. Acad. Sci. U.S.A.

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This report describes experiments in which successful acoustic imprinting correlates with differential uptake of D-2-deoxy[4C]glucose in particular forebrain areas that are not considered primarily auditory. Newly hatched guinea chicks (Numida meleagris meleagris) were imprinted by playing 1.8-kHz or 2.5-kHz tone bursts for prolonged periods. Those chicks wereconsidered to be imprinted who approached the imprinting stimulus (emitted from a loudspeaker) and preferred it over a new stimulus in a simultaneous discrimination test. In the 2-deoxy-Dglucose experiment all chicks, imprinted and naive, were exposed to 1.8-kHz tone bursts for 1 hr. As shown by the autoradiographic analysis of the brains, neurons in the 1.8&kHz isofrequency plane of the auditory "cortex" (field L) were activated in all chicks, whether imprinted or not. However; in-the most rostral forebrain striking differences were found. Imprinted chicks showed an increased 2-deoxy-D-glucose uptake in three areas, as compared to naive chicks: (i) the lateral neostriatum and hyperstriatum ventrale, (ii) a medial magnocellular field (medial neostriatum/hyperstriatum ventrale), and (iii) the most dorsal layers of the hyperstriatum. Based on these findings we conclude that these areas are involved in the processing of auditory stimuli once they have become meaningful by experience.Early experience of young animals with a particular sensory stimulus may have deterministic behavioral consequences. Subsequently, the animal prefers the familiar stimulus over novel ones. Since its first description by Lorenz (1) this phenomenon is known as "imprinting." Its most conspicuous difference from other forms of learning is that imprinting takes place only during a restricted developmental period of life and that the imprinting effect is considerably resistant to other experience [for recent theories see, e.g., Hess (2) and Immelmann et al. (3)]. This and particular prerequisites for imprinting to occur (e.g., previous, generalized sensory experience, social conditions, complexity of stimuli, and so on) were in the past extensively studied at the behavioral level. Visual stimuli were used almost exclusively, although for many species auditory stimuli are essential (2). Our own experiments with guinea chicks showed that this species imprints successfully on tone bursts (unpublished The present dGlc experiments were undertaken to reveal areas of enhanced activity in the brains of guinea fowl chicks (Numida nwleagris meleagris). These birds have the advantage that we know their vocal repertoires thoroughly (12, 13). Furthermore, differential dGlc uptake into auditory areas in response to various acoustic stimuli has been studied previously (14-16).Chicks imprinted either with 1.8-kHz or 2.5-kHz tones and naive controls were exposed to 1.8-kHz tones in a 1-hr session while injected with dGlc. In autoradiographs, known auditory areas were similarly labeled in imprinted and control chicks. However, three particular areas in the rostral forebrain showed extensive lab...

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Section: Discussionmentioning

confidence: 94%

Acoustic imprinting leads to differential 2-deoxy-D-glucose uptake in the chick forebrain.

Maier¹,

Scheich²

1983

Proc. Natl. Acad. Sci. U.S.A.

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“…The lesions of the lateral telencephalon performed by Salzen et al (1975,1978), were similar in position and size to the archistriatal and lateral cerebral area lesions of the present study combined. Since in the present study lateral cerebral area lesions failed to impair imprinting, it is reasonable to suggest that the impairment of imprinting reported by Salzen et al (1975Salzen et al ( , 1978 was due to archistriatal damage. Lesions to the IMHV more than 6 h after training do not impair the expression of an imprinted preference (Davey et al, 1987), suggesting that S' is functional at this time.…”

Section: Discussionmentioning

confidence: 78%

“…Extensive suction lesions of the lateral telencephalon in newly hatched chicks have been reported to impair imprinting, when the chicks were tested 3 -10 days later (Salzen et al, 1975). Moreover, when chicks were trained and similar ablations performed on the sixth day after hatching, many hours after training was initiated (Salzen et al, 1978), retention was also impaired. The lesions of the lateral telencephalon performed by Salzen et al (1975,1978), were similar in position and size to the archistriatal and lateral cerebral area lesions of the present study combined.…”

Section: Discussionmentioning

confidence: 99%

“…Lesions to the IMHV more than 6 h after training do not impair the expression of an imprinted preference (Davey et al, 1987), suggesting that S' is functional at this time. As lesions which include the archistriatum performed after this time appear to impair the expression of a preference (Salzen et al, 1978), archistriatal lesions could prevent the formation of S ' , or the archistriatum may constitute all or part of the anatomical site of S'.…”

Section: Discussionmentioning

confidence: 99%

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Archistriatal Lesions Impair the Acquisition of Filial Preferences During Imprinting in the Domestic Chick

Lowndes

Davies

Johnson³

1994

Eur J of Neuroscience

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The avian archistriatum has been demonstrated to play a role in agonistic behaviours and avoidance learning. However, the extent of its role in learning is unknown. The involvement of the archistriatum in the learning process of filial imprinting was therefore investigated in day-old chicks. Bilateral archistriatal lesions, lateral cerebral area lesions or sham archistriatal penetrations were made in dark-reared, day-old chicks, which were subsequently exposed to either a rotating red box or blue cylinder for 2 x 1 h training sessions. Three hours later, the approach of chicks to their training object and to the other, novel object was measured. Chicks with archistriatal lesions ran a similar distance towards each stimulus and therefore failed to display a preference for their training object. However, chicks with sham archistriatal penetrations or lateral cerebral area lesions exhibited a significant preference for the object they had been trained upon. These results demonstrate that the archistriatum is essential for the expression of an imprinted preference. All chicks approached their training object significantly more on their second compared to their first training exposure, suggesting that some aspects of imprinting behaviour remain intact in chicks with archistriatal lesions. Taken together with the results of previous work, the current data suggest that the archistriatum may be involved in retention of significant aspects of the imprinting experience, or in motivation to approach imprinting objects.

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“…However, while bilateral electrolytic lesions in this area failed to impair acquisition of the one-trial PAL task (Davies et al, 1988), it should be noted that more extensive suction lesions of the lateral forebrain (including the LCA) have been reported to affect both the acquisition and retention of a one-trial PAL task (Benowitz, 1972) andSalzen et al (1975) have reported that relatively large lateral forebrain lesions placed in newly hatched chicks prevented imprinting when tested 3 -10 days later. Similar lesions placed in imprinted chicks on the 6th day post-hatch were reported to impair retention on the 9th, 12th or 14th day after hatching (Salzen et al, 1978). The nature of the possible involvement of the LCA in one-trial PAL is unknown, but it is interesting to note that this region receives efferent projections from IMHV (Bradley et n l .…”

Section: Discussionmentioning

confidence: 93%

Cerebral Glycoprotein Synthesis and Long‐term Memory Formation in the Chick (Gallus domesticus) Following Passive Avoidance Training Depends on the Nature of the Aversive Stimulus

Bourne

Davies

Stewart

et al. 1991

Eur J of Neuroscience

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Chicks that peck a small bright bead coated in a distateful substance can learn in a single trial to subsequently avoid a similar bead. The taste aversant commonly used is methyl anthranilate, which also has a strong pervasive odour. We have compared the efficacy of methyl anthranilate and the apparently odourless quinine as aversants. Methyl anthranilate-trained chicks learnt the task and the memory apparently persisted undiminished for at least 24 h. Quinine-trained chicks exhibited a memory for the task similar to that of methyl anthranilate-trained chicks 45 min after training, this thereafter declined until, at 24 h after training, they showed no recall. We investigated the incorporation of a radio-labelled synaptic membrane glycoprotein precursor, [3H]fucose, into three regions of the chick forebrain; two of these regions have previously been implicated in learning using methyl anthranilate as the aversant. There was a significant increase in [3H]fucose incorporation into the left lateral cerebral area and numerically similar, but non-significant, increases in the intermediate part of the medial hyperstriatum ventrale and lobus parolfactorius. There were no such increases in the right hemisphere of methyl anthranilate-trained chicks or any region of either hemisphere of quinine-trained chicks. Thus, the memory for methyl anthranilate is longer-lasting than that for quinine and is associated with increased fucosylation in the left cerebral hemisphere and although in the short-term, chicks can retain a memory of the one-trial passive avoidance task with quinine as the aversant, this does not result in a localized increase in cerebral [3H]fucose incorporation.

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Forebrain lesions and retention of imprinting in domestic chicks

Cited by 39 publications

References 5 publications

Acoustic imprinting leads to differential 2-deoxy-D-glucose uptake in the chick forebrain.

Acoustic imprinting leads to differential 2-deoxy-D-glucose uptake in the chick forebrain.

Archistriatal Lesions Impair the Acquisition of Filial Preferences During Imprinting in the Domestic Chick

Cerebral Glycoprotein Synthesis and Long‐term Memory Formation in the Chick (Gallus domesticus) Following Passive Avoidance Training Depends on the Nature of the Aversive Stimulus

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