Involvement of vision in tool use in crow

Masaki Kanai, Hiroshi Matsui, Shigeru Watanabe, Eiichi Izawa

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Birds are capable of dexterous sensory-motor activities such as tool use. Reaching is a crucial component of tool use and is a vision-guided behavior in primates, in which arm movement is monitored online in a stable visual frame. However, vision-guided reaching in primates is enabled by anatomical separation of the head and arm; neck reaching in birds accompanies head movement, which produces unstable vision because the eye necessarily moves with the bill. This anatomical difference raises the question whether tool use in birds involves visuomotor mechanisms that are distinct from those in primates. As the role of vision in avian tool use has been poorly understood, we investigated the role of vision in tool use in the large-billed crow (Corvus macrorhynchos), a nontool user in the wild. Crows were trained to manipulate an L-shaped hook to retrieve food that was otherwise out of reach. After training, an opaque panel was placed on the front window of the platform to block their vision, and the effects on tool use were tested with respect to performance and movement trajectory. Vision blocking caused similar deviation of tool movement trajectories for both near and far targets, as well as far target-specific deviation. This suggests the involvement of vision in tool use by crows, specifically in the premanipulation process for conversion of vision-body coordinates for motor planning and in the process of tool manipulation. This is the first behavioral evidence for the involvement of vision in avian tool use.

Original languageEnglish
Pages (from-to)1064-1068
Number of pages5
JournalNeuroReport
Volume25
Issue number13
DOIs
Publication statusPublished - 2014 Sep 10

Fingerprint

Crows
Primates
Birds
Arm
Head Movements
Motor Activity
Neck
Head

Keywords

  • bird
  • crow
  • reaching
  • tool use
  • vision

ASJC Scopus subject areas

  • Neuroscience(all)
  • Medicine(all)

Cite this

Involvement of vision in tool use in crow. / Kanai, Masaki; Matsui, Hiroshi; Watanabe, Shigeru; Izawa, Eiichi.

In: NeuroReport, Vol. 25, No. 13, 10.09.2014, p. 1064-1068.

Research output: Contribution to journalArticle

Kanai, M, Matsui, H, Watanabe, S & Izawa, E 2014, 'Involvement of vision in tool use in crow', NeuroReport, vol. 25, no. 13, pp. 1064-1068. https://doi.org/10.1097/WNR.0000000000000229
Kanai, Masaki ; Matsui, Hiroshi ; Watanabe, Shigeru ; Izawa, Eiichi. / Involvement of vision in tool use in crow. In: NeuroReport. 2014 ; Vol. 25, No. 13. pp. 1064-1068.
@article{901ae56211ce4a31b6b23556bb7a02c4,
title = "Involvement of vision in tool use in crow",
abstract = "Birds are capable of dexterous sensory-motor activities such as tool use. Reaching is a crucial component of tool use and is a vision-guided behavior in primates, in which arm movement is monitored online in a stable visual frame. However, vision-guided reaching in primates is enabled by anatomical separation of the head and arm; neck reaching in birds accompanies head movement, which produces unstable vision because the eye necessarily moves with the bill. This anatomical difference raises the question whether tool use in birds involves visuomotor mechanisms that are distinct from those in primates. As the role of vision in avian tool use has been poorly understood, we investigated the role of vision in tool use in the large-billed crow (Corvus macrorhynchos), a nontool user in the wild. Crows were trained to manipulate an L-shaped hook to retrieve food that was otherwise out of reach. After training, an opaque panel was placed on the front window of the platform to block their vision, and the effects on tool use were tested with respect to performance and movement trajectory. Vision blocking caused similar deviation of tool movement trajectories for both near and far targets, as well as far target-specific deviation. This suggests the involvement of vision in tool use by crows, specifically in the premanipulation process for conversion of vision-body coordinates for motor planning and in the process of tool manipulation. This is the first behavioral evidence for the involvement of vision in avian tool use.",
keywords = "bird, crow, reaching, tool use, vision",
author = "Masaki Kanai and Hiroshi Matsui and Shigeru Watanabe and Eiichi Izawa",
year = "2014",
month = "9",
day = "10",
doi = "10.1097/WNR.0000000000000229",
language = "English",
volume = "25",
pages = "1064--1068",
journal = "NeuroReport",
issn = "0959-4965",
publisher = "Lippincott Williams and Wilkins",
number = "13",

}

TY - JOUR

T1 - Involvement of vision in tool use in crow

AU - Kanai, Masaki

AU - Matsui, Hiroshi

AU - Watanabe, Shigeru

AU - Izawa, Eiichi

PY - 2014/9/10

Y1 - 2014/9/10

N2 - Birds are capable of dexterous sensory-motor activities such as tool use. Reaching is a crucial component of tool use and is a vision-guided behavior in primates, in which arm movement is monitored online in a stable visual frame. However, vision-guided reaching in primates is enabled by anatomical separation of the head and arm; neck reaching in birds accompanies head movement, which produces unstable vision because the eye necessarily moves with the bill. This anatomical difference raises the question whether tool use in birds involves visuomotor mechanisms that are distinct from those in primates. As the role of vision in avian tool use has been poorly understood, we investigated the role of vision in tool use in the large-billed crow (Corvus macrorhynchos), a nontool user in the wild. Crows were trained to manipulate an L-shaped hook to retrieve food that was otherwise out of reach. After training, an opaque panel was placed on the front window of the platform to block their vision, and the effects on tool use were tested with respect to performance and movement trajectory. Vision blocking caused similar deviation of tool movement trajectories for both near and far targets, as well as far target-specific deviation. This suggests the involvement of vision in tool use by crows, specifically in the premanipulation process for conversion of vision-body coordinates for motor planning and in the process of tool manipulation. This is the first behavioral evidence for the involvement of vision in avian tool use.

AB - Birds are capable of dexterous sensory-motor activities such as tool use. Reaching is a crucial component of tool use and is a vision-guided behavior in primates, in which arm movement is monitored online in a stable visual frame. However, vision-guided reaching in primates is enabled by anatomical separation of the head and arm; neck reaching in birds accompanies head movement, which produces unstable vision because the eye necessarily moves with the bill. This anatomical difference raises the question whether tool use in birds involves visuomotor mechanisms that are distinct from those in primates. As the role of vision in avian tool use has been poorly understood, we investigated the role of vision in tool use in the large-billed crow (Corvus macrorhynchos), a nontool user in the wild. Crows were trained to manipulate an L-shaped hook to retrieve food that was otherwise out of reach. After training, an opaque panel was placed on the front window of the platform to block their vision, and the effects on tool use were tested with respect to performance and movement trajectory. Vision blocking caused similar deviation of tool movement trajectories for both near and far targets, as well as far target-specific deviation. This suggests the involvement of vision in tool use by crows, specifically in the premanipulation process for conversion of vision-body coordinates for motor planning and in the process of tool manipulation. This is the first behavioral evidence for the involvement of vision in avian tool use.

KW - bird

KW - crow

KW - reaching

KW - tool use

KW - vision

UR - http://www.scopus.com/inward/record.url?scp=84905981482&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905981482&partnerID=8YFLogxK

U2 - 10.1097/WNR.0000000000000229

DO - 10.1097/WNR.0000000000000229

M3 - Article

C2 - 25004080

AN - SCOPUS:84905981482

VL - 25

SP - 1064

EP - 1068

JO - NeuroReport

JF - NeuroReport

SN - 0959-4965

IS - 13

ER -