TY - JOUR
T1 - Octopus vulgaris uses visual information to determine the location of its arm
AU - Gutnick, Tamar
AU - Byrne, Ruth A.
AU - Hochner, Binyamin
AU - Kuba, Michael
PY - 2011/3/22
Y1 - 2011/3/22
N2 - Octopuses are intelligent, soft-bodied animals with keen senses that perform reliably in a variety of visual and tactile learning tasks [1-6]. However, researchers have found them disappointing in that they consistently fail in operant tasks that require them to combine central nervous system reward information with visual and peripheral knowledge of the location of their arms [6-8]. Wells [6] claimed that in order to filter and integrate an abundance of multisensory inputs that might inform the animal of the position of a single arm, octopuses would need an exceptional computing mechanism, and "There is no evidence that such a system exists in Octopus, or in any other soft bodied animal." Recent electrophysiological experiments, which found no clear somatotopic organization in the higher motor centers, support this claim [9]. We developed a three-choice maze that required an octopus to use a single arm to reach a visually marked goal compartment. Using this operant task, we show for the first time that Octopus vulgaris is capable of guiding a single arm in a complex movement to a location. Thus, we claim that octopuses can combine peripheral arm location information with visual input to control goal-directed complex movements. Video Abstract:
AB - Octopuses are intelligent, soft-bodied animals with keen senses that perform reliably in a variety of visual and tactile learning tasks [1-6]. However, researchers have found them disappointing in that they consistently fail in operant tasks that require them to combine central nervous system reward information with visual and peripheral knowledge of the location of their arms [6-8]. Wells [6] claimed that in order to filter and integrate an abundance of multisensory inputs that might inform the animal of the position of a single arm, octopuses would need an exceptional computing mechanism, and "There is no evidence that such a system exists in Octopus, or in any other soft bodied animal." Recent electrophysiological experiments, which found no clear somatotopic organization in the higher motor centers, support this claim [9]. We developed a three-choice maze that required an octopus to use a single arm to reach a visually marked goal compartment. Using this operant task, we show for the first time that Octopus vulgaris is capable of guiding a single arm in a complex movement to a location. Thus, we claim that octopuses can combine peripheral arm location information with visual input to control goal-directed complex movements. Video Abstract:
UR - http://www.scopus.com/inward/record.url?scp=79952808690&partnerID=8YFLogxK
U2 - 10.1016/j.cub.2011.01.052
DO - 10.1016/j.cub.2011.01.052
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C2 - 21396818
AN - SCOPUS:79952808690
SN - 0960-9822
VL - 21
SP - 460
EP - 462
JO - Current Biology
JF - Current Biology
IS - 6
ER -