Podcast
Questions and Answers
Which statement accurately describes qualia in relation to consciousness?
Which statement accurately describes qualia in relation to consciousness?
What distinguishes the hard problem of consciousness from the easy problem?
What distinguishes the hard problem of consciousness from the easy problem?
What are the three stages of awareness described in the tripartite model?
What are the three stages of awareness described in the tripartite model?
How does awareness differ from attention in the context of consciousness?
How does awareness differ from attention in the context of consciousness?
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Which example best illustrates the easy problem of consciousness?
Which example best illustrates the easy problem of consciousness?
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What is required for consciousness according to the Integrated Information Theory (IIT)?
What is required for consciousness according to the Integrated Information Theory (IIT)?
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What does the Global Neuronal Workspace (GNW) theory propose about consciousness?
What does the Global Neuronal Workspace (GNW) theory propose about consciousness?
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During a trance state, which brain network shows increased activity?
During a trance state, which brain network shows increased activity?
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What effect does a trance state have on auditory processing regions?
What effect does a trance state have on auditory processing regions?
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What phenomenon did Family et al. (2016) associate LSD with in terms of language representation?
What phenomenon did Family et al. (2016) associate LSD with in terms of language representation?
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Which evidence supports the Integrated Information Theory (IIT) regarding the cerebellum?
Which evidence supports the Integrated Information Theory (IIT) regarding the cerebellum?
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What type of processing is characterized by the Global Neuronal Workspace theory in relation to unconscious actions?
What type of processing is characterized by the Global Neuronal Workspace theory in relation to unconscious actions?
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What cognitive shift occurs during trance states according to the discussed theories?
What cognitive shift occurs during trance states according to the discussed theories?
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Study Notes
Defining + Studying Consciousness
- Two major approaches to defining and studying consciousness.
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Easy Problem of Consciousness: How is brain activity related to conscious experiences?
- This approach is scientifically testable.
- One example is simulating neural activity to reconstruct the sound of a song.
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Hard Problem of Consciousness: Understanding subjective conscious experiences.
- This approach is harder to test scientifically.
- Qualia is the 'what it's like' component of consciousness.
- Example: Is your subjective experience of a song the same as mine?
- The relationship between attention, awareness, and consciousness can be explained by the tripartite model (Dehaene et al. 2006).
- The tripartite model suggests 3 stages of awareness resulting from stimulus and processing strength.
- The stages are influenced by exogenous and endogenous factors.
States in the Tripartite Model
- Subliminal Processing: Minimal sensory processing; no awareness.
- Preconscious Processing: Sensory processing; no awareness.
- Conscious Processing: Sensory processing; awareness.
Theories of Consciousness
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Global Neuronal Workspace (GNW): Widespread processing of information underlines conscious experiences.
- This theory moves from the neural level to the experience level.
- Unconscious activities involve local sensory-motor processing, such as riding a bike or tying your shoes.
- Conscious activities involve widespread processing, integrating cognitive networks.
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Integrated Information Theory (IIT): Consciousness arises from a complex system.
- This theory moves from the experience level to the neural level.
- It explains which types of systems have consciousness and how much of it they have.
- This theory suggests that consciousness arises from complex systems with feedback loop modifications resulting in information gathering.
- It is argued that the cerebellum provides evidence for IIT.
Altered States of Consciousness and Cognition
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Trance reflects shifts in the direction of consciousness.
- Hove et al. (2016) argue that a trance state is a "narrowed awareness of surroundings."
- Experienced shamans were used in an fMRI study.
- Rhythmic drumming was part of the study to induce a trance state.
- The study concluded that the trance state resulted in increased activity in the default mode network, which is involved in inward-directed cognition.
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LSD affects language category representation.
- Family et al. (2016) showed that LSD affects cognitive processes.
- When concepts come from similar categories, they tend to interfere with each other.
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