Banca de DEFESA: MIZZIARA MARLEN MATIAS DE PAIVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MIZZIARA MARLEN MATIAS DE PAIVA
DATE: 30/01/2023
TIME: 09:00
LOCAL: https://meet.google.com/mwq-zqps-bzj
TITLE:

Sleep and Learning in Octopus insularis

KEY WORDS:

Octopus, sleep, learning, Octopus insularis

PAGES: 40
BIG AREA: Ciências Biológicas
AREA: Biologia Geral
SUMMARY:

Among invertebrate animals, the class of cephalopods, belonging to the phylum Mollusca, has stood out in research for its remarkable intelligence and learning ability. In particular, octopuses have shown complex behavior regarding the organization of their nervous system, including a lobe for learning. These animals also show, as already known in vertebrates, learning skills by touch and observation. In the literature, there are studies carried out with the species O. vulgaris in which it was verified that octopuses are able to change behavior based on the results of experiments, demonstrating that they can associate information and reproduce adaptive behavioral responses. Among the objectives of this study, we seek to relate the learning capacity of these animals with their sleep patterns. Sleep is a behavior that occurs in several taxa of the animal kingdom and has already been extensively studied in vertebrates, especially in mammals and birds. However, among invertebrates, in the case of octopuses, there are behavioral and electrophysiological studies that point to the existence of at least two sleep phases. The objective of this work is to investigate and describe in detail, through a comprehensive behavioral quantification, a learning process in the species Octopus insularis. We intend to investigate and describe O. insularis behaviors, characterize a specific learning process and identify whether there is a relationship with sleep. Using video recordings, we are assessing whether the young adults of this species are capable of learning a new task, called here "Russian dolls", which requires the animals (N=5) to sequentially open up to three different jars, one inside the other, one smaller than the other, with a reward (crab or shrimp) inside the smaller jar. We observed that the octopuses are able to open the 3 types of jars, often opening each of them in many different ways, which shows the cognitive ability and behavioral versatility of these animals.

COMMITTEE MEMBERS:
Externo à Instituição - JOSÉ EDUARDO AMOROSO RODRIGUEZ MARIAN - USP
Interno - 2394627 - EDUARDO BOUTH SEQUERRA
Presidente - 1660044 - SIDARTA TOLLENDAL GOMES RIBEIRO
Externa ao Programa - 1798628 - TATIANA SILVA LEITE - null