Evidence for perceptual neglect of environmental features in hippocampal-lesioned pigeons during homing

Gagliardo, Anna; Pollonara, Enrica; Coppola, Vincent J.; Santos, Carlos D.; Wikelski, Martin; Bingman, Verner P.

Evidence for perceptual neglect of environmental features in hippocampal-lesioned pigeons during homing

Dateien

Gagliardo_0-258623.pdfGröße: 1.36 MBDownloads: 828

Datum

2014

Autor:innen

Gagliardo, Anna

Pollonara, Enrica

Coppola, Vincent J.

Santos, Carlos D.

Wikelski, Martin

Bingman, Verner P.

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

European Journal of Neuroscience. 2014, 40(7), pp. 3102-3110. ISSN 0953-816X. eISSN 1460-9568. Available under: doi: 10.1111/ejn.12680

Zusammenfassung

The importance of the vertebrate hippocampus in spatial cognition is often related to its broad role in memory. However, in birds, the hippocampus appears to be more specifically involved in spatial processes. The maturing of GPS-tracking technology has enabled a revolution in navigation research, including the expanded possibility of studying brain mechanisms that guide navigation in the field. By GPS-tracking homing pigeons released from distant, unfamiliar sites prior to and after hippocampal lesion, we observed, as has been reported previously, impaired navigational performance post-lesion over the familiar/memorized space near the home loft, where topographic features constitute an important source of navigational information. The GPS-tracking revealed that many of the lost pigeons, when lesioned, approached the home area, but nevertheless failed to locate their loft. Unexpectedly, when they were hippocampal-lesioned, the pigeons showed a notable change in their behaviour when navigating over the unfamiliar space distant from home; they actually flew straighter homeward-directed paths than they did pre-lesion. The data are consistent with the hypothesis that, following hippocampal lesion, homing pigeons respond less to unfamiliar visual, topographic features encountered during homing, and, as such, offer the first evidence for an unforeseen, perceptual neglect of environmental features following hippocampal damage.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Columba livia, hippocampus, navigation, spatial cognition

Zitieren

ISO 690

GAGLIARDO, Anna, Enrica POLLONARA, Vincent J. COPPOLA, Carlos D. SANTOS, Martin WIKELSKI, Verner P. BINGMAN, 2014. Evidence for perceptual neglect of environmental features in hippocampal-lesioned pigeons during homing. In: European Journal of Neuroscience. 2014, 40(7), pp. 3102-3110. ISSN 0953-816X. eISSN 1460-9568. Available under: doi: 10.1111/ejn.12680

BibTex

@article{Gagliardo2014Evide-29310,
  year={2014},
  doi={10.1111/ejn.12680},
  title={Evidence for perceptual neglect of environmental features in hippocampal-lesioned pigeons during homing},
  number={7},
  volume={40},
  issn={0953-816X},
  journal={European Journal of Neuroscience},
  pages={3102--3110},
  author={Gagliardo, Anna and Pollonara, Enrica and Coppola, Vincent J. and Santos, Carlos D. and Wikelski, Martin and Bingman, Verner P.}
}

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