Passer au contenu de la page principale

Malcom MacIver: How sentience changed after fish invaded land 385 million years ago

Decorative image for session Malcom MacIver: How sentience changed after fish invaded land 385 million years ago

Mon statut pour la session

Quoi:
Talk
Quand:
9:00 AM, Jeudi 28 Juin 2018 (1 heure 30 minutes)
Thème:
Computers


Malcolm A. Maciver 
Northwestern University

Rachel Léger 
Biologist
Moderator


Our work on electric fish-inspired underwater robots through the past decade has taught us much about how these fish can move across time, and what they sense. Compared to the much bigger sensing spaces of land animals such as birds and mammals, our underwater existence was dominated by behavioral urgency due to only sensing predators or prey within a few body lengths. I’ll focus on how sentience changed when fish clambered up on land 385 million years ago. A stunning change in sensory capability  provided a strong selective advantage for imagining the future compared to our fish ancestors. Simulated predator-prey behavior suggests that planning had little benefit at the sensory distances typical of underwater life, but high benefit on land. Ecology may induce cognition. The aquatic to land transition was from a form of sentience stuck in a stimulus-response regime with respect to near-field threats and opportunities, to one where internally driven plans can take root in the imagination and allow mastery of spatially or temporally distant goals. I’ll close by sketching what the next transition in sentience ought to be.

MacIver, M. A., Schmitz, L., Mugan, U., Murphey, T. D., & Mobley, C. D. (2017). Massive increase in visual range preceded the origin of terrestrial vertebratesProceedings of the National Academy of Sciences114(12), E2375-E2384.

Commentary: Evolution, an Irresistibly Clear View of Land, by Dan-E. Nilsson. Current Biology, 2017,  Response to commentary by MacIver & Schmitz.


Rachel Léger

Modérateur.rice

Mon statut pour la session

Detail de session
Pour chaque session, permet aux participants d'écrire un court texte de feedback qui sera envoyé à l'organisateur. Ce texte n'est pas envoyé aux présentateurs.
Afin de respecter les règles de gestion des données privées, cette option affiche uniquement les profils des personnes qui ont accepté de partager leur profil publiquement.

Les changements ici affecteront toutes les pages de détails des sessions