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Topic: neural basis

Seminar
4 seminars

In Cognition and Neuroscience

Seminar · Consciousness

Ganzflicker: Using light-induced hallucinations to predict risk factors of psychosis

Reshanne Reeder · University of Liverpool

Mon, Mar 18, 2024 · 10:30 UTC

Rhythmic flashing light, or “Ganzflicker”, can elicit altered states of consciousness and hallucinations, bringing your mind’s eye out into the real world. What do you experience if you have a super mind’s eye, or none at all? In this talk, I will discuss how Ganzflicker has been used to simulate psychedelic experiences, how it can help us predict symptoms of psychosis, and even tap into the neural basis of hallucinations.

Seminar · Cognition

Decoding mental conflict between reward and curiosity in decision-making

Naoki Honda · Hiroshima University

Tue, Jul 11, 2023 · 00:00 UTC

Humans and animals are not always rational. They not only rationally exploit rewards but also explore an environment owing to their curiosity. However, the mechanism of such curiosity-driven irrational behavior is largely unknown. Here, we developed a decision-making model for a two-choice task based on the free energy principle, which is a theory integrating recognition and action selection. The model describes irrational behaviors depending on the curiosity level. We also proposed a machine learning method to decode temporal curiosity from behavioral data. By applying it to rat behavioral da

Seminar · Cognition

Decision Making and the Brain

Arjun Ramakrishnan · IIT, Kanpur

Tue, Sep 6, 2022 · 20:30 UTC

In this talk, we will examine human behavior from the perspective of the choices we make every day. We will study the role of the brain in enabling these decisions and discuss some simple computational models of decision making and the neural basis. Towards the end, we will have a short, interactive session to engage in some easy decisions that will help us discover our own biases.

Seminar · Consciousness

Cellular mechanisms of conscious processing

Jaan Aru · University of Tartu

Thu, Nov 18, 2021 · 15:30 UTC

Recent breakthroughs in neurobiology indicate that time is ripe to understand the cellular-level mechanisms of conscious experience. Accordingly, we have recently proposed that conscious processing depends on the integration between top-down and bottom-up information streams and that there exists a specific cellular mechanism that gates this integration. I will first describe this cellular mechanism and demonstrate how it controls signal propagation within the thalamocortical system. Then I will show how this cellular-level mechanism provides a natural explanation for why conscious experience