Consciousness: Exploring Subjective Experience

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Questions and Answers

Within the framework of consciousness studies, what is the most compelling critique against the Cartesian theater?

  • It does not account for the cognitive impenetrability of certain automatic behaviors, such as breathing, which occur independently of conscious monitoring.
  • It implies a linear, sequential processing model, failing to capture the parallel and distributed nature of neural processing involved in consciousness.
  • It inaccurately posits a singular, localized area, like the pineal gland suggested by Descartes, where consciousness converges, contradicting distributed processing models. (correct)
  • Its dependence on subjective reporting, such as introspection, undermines the possibility of intersubjective verification, rendering its empirical investigation impossible.

How does the philosophical concept of qualia challenge the materialist perspective on consciousness?

  • The infinite regress problem inherent in materialism necessitates the introduction of qualia as a stopping point, precluding any further reduction.
  • Materialism cannot account for the observed time delay between neural events and subjective experience, thus creating a loophole for non-physical influences.
  • Qualia necessitate the existence of a 'hard problem' that will forever be outside the realm of scientific inquiry, because we are limited to physical measurements.
  • Qualia, as fundamental subjective experiences, resist reduction to mere physical properties due to their inherently first-personal, incommunicable nature. (correct)

In what way does the 'hard problem' of consciousness fundamentally differ from other 'easy' problems in cognitive science?

  • 'Easy' problems are merely descriptive, focusing on what the processes are, whereas the 'hard problem' focuses on why this experience occurs at all.
  • The 'hard problem' involves subjective experience, which is non-quantifiable, whereas 'easy' cognitive science problems can be addressed with quantitative, objective methods.
  • The 'hard problem' requires an interdisciplinary approach incorporating philosophy, neuroscience, and quantum physics, whereas 'easy' problems are domain-specific.
  • Easy problems are empirically tractable with tools such as fMRI, EEG, etc., while the 'hard problem' hinges on bridging the explanatory gap between objective and subjective realities. (correct)

Which of the following critiques most directly undermines the validity of interpretations derived from dream analysis?

<p>Dream analysis lacks empirical falsifiability, wherein interpretations are often adjusted post-hoc to fit the narrative, compromising testability and predictive power. (C)</p> Signup and view all the answers

How does the phenomenon of choice blindness challenge traditional notions of conscious awareness and decision-making?

<p>It reveals that individuals are capable of constructing post-hoc rationalizations for choices they did not consciously make, implying a disconnect between action and awareness. (C)</p> Signup and view all the answers

What primary cognitive function does dichotic listening paradigm primarily target, considering the characteristics of consciousness?

<p>Selectivity, as the paradigm requires focusing on one message while actively filtering out another, showcasing consciousness's capacity to include some information and exclude others. (C)</p> Signup and view all the answers

In the context of attentional models, what epistemological issue is introduced by late selection models?

<p>They necessitate an evaluation or processing of all stimuli such that it can be selected, regardless of conscious awareness. (D)</p> Signup and view all the answers

Which neurocognitive mechanism is most directly implicated when a patient with unilateral visual neglect fails to acknowledge an object in their left visual field, despite intact visual pathways?

<p>A deficit in disengaging attention from the ipsilesional field interferes with allocating attentional resources to the contralesional side. (C)</p> Signup and view all the answers

How does the phenomenon of blindsight provide evidence for the dissociation of consciousness and perceptual processing?

<p>It shows that basic visual discrimination can occur in the absence of subjective awareness which means sensory input cannot be the sole creator of consciousness. (D)</p> Signup and view all the answers

What is the most accurate interpretation of the relationship between consciousness and underlying neurobiological processes?

<p>Consciousness is an emergent and fundamental property, irreducible to physical descriptions though fully reliant on brain activity for its existence. (B)</p> Signup and view all the answers

What is the most accurate conclusion about the evolutionary rationale for consciousness in higher-order organisms?

<p>Consciousness enables reflective awareness in higher-order systems, facilitating complex, high-level integration between multiple cognitive and sensory processes. (A)</p> Signup and view all the answers

In what key manner does sleep deprivation exert its detrimental effects on cognitive function?

<p>Synaptic homeostasis cannot occur during sustained wakefulness. Since sleep deprivation leads to a disruption in cleaning the waste, synapses become saturated. (D)</p> Signup and view all the answers

Which of the following offers the most substantiated critique against the claim that hypnosis enables access to veridical (truthful) memories?

<p>The suggestible state induced by hypnosis heightens the likelihood of incorporating misinformation from leading questions, thereby inflating the rate of false memory recall. (D)</p> Signup and view all the answers

Considering the role of mirror self-recognition in assessing self-consciousness, what limitation should be accounted for?

<p>The test may merely indicate the ability to solve a visuospatial problem, rather than introspection. (C)</p> Signup and view all the answers

What is the nature of the relationship between activity within the amygdala and fear in typical dream experiences?

<p>Heightened amygdala activation may give rise to a higher report of vivid dreams tinged to emotional distress (A)</p> Signup and view all the answers

If an expert swimmer reported the subjective experience of 'becoming one with the water' due to the immersion, what would be the most accurate state to account for this experience?

<p>Flow State since the action is enjoyable, and there is a balance in action and ability so that challenge is present. (B)</p> Signup and view all the answers

What is the MOST accurate explanation underlying the action of stimulant drugs on consciousness?

<p>Stimulant drugs are primarily agonists of dopamine and norepinephrine and are involved in reward-related behaviors. (C)</p> Signup and view all the answers

A drug that was developed for human benefit but has detrimental cognitive side effects can be categorized most completely as which of the following?

<p>A harm-generating agent that is legal due to a net positive from medical utility outweigh possible ill effects. (B)</p> Signup and view all the answers

Within the context of the text, what is the distinction between the cognitive unconscious and the dynamic unconscious originally proposed by Freud?

<p>The dynamic unconscious represents an active system characterized by latent, often repressed, desires that lack a neural substrate, whereas the cognitive unconscious encompasses automated cognitive processes with measurable. (B)</p> Signup and view all the answers

When the rubber hand illusion has been presented on a subject, and they began to perceive touch as emanating from the hand, what should be added to further improve spatial embodiment?

<p>Synchronous touch stimulation and perceived movement from their vantage point. (C)</p> Signup and view all the answers

How can meditation lead to brain change in novice or expert meditators?

<p>It is thought the brain can practice disengagement of attention from an external environment. (B)</p> Signup and view all the answers

Flashcards

Consciousness

A person's subjective experience of the world and the mind.

Hard problem of consciousness

Difficulty of explaining how subjective experience could ever arise.

Phenomenology

How things seem to the conscious person, in terms of the quality of experience.

Homunculus problem

Difficulty of explaining consciousness by advocating another internal self.

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Anthropomorphism

Tendency to attribute human qualities to nonhuman things.

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Problem of other minds

Difficulty we have in perceiving the consciousness of others.

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Qualia

Subjective experiences we have as part of our mental life.

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Materialism

Mental states are a product of physical processes alone.

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Mind-body problem

The issue of how the mind is related to the brain and body.

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Change blindness

Unawareness of significant event changes that happen in full view.

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Dichotic listening

A task in which people wearing headphones hear different messages presented to each ear.

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Cocktail party phenomenon

People tune in to one message even while they filter out others nearby.

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Minimal consciousness

A low level of awareness that occurs when the mind inputs sensations and may output behavior.

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Full consciousness

Consciousness in which you know and are able to report your mental state.

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Self-consciousness

A distinct level of consciousness in which the person's attention is drawn to the self as an object.

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Daydreaming

A state of consciousness in which a seemingly purposeless flow of thoughts comes to mind.

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Mental control

The attempt to change conscious states of mind

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Thought suppression

The conscious avoidance of a thought.

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Rebound effect

The tendency of a thought to return to consciousness with greater frequency following suppression.

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Ironic processes

Mental processes that can produce ironic errors because monitoring for errors can itself produce them.

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Selective attention

The process whereby we focus mental processing on a limited range of events.

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Information bottleneck

Where the channel of information processing has a limited capacity.

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Load model

that task difficulty determines whether selection is early or late

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Unilateral visual neglect

A condition where patients fail to notice or attend to stimuli that appear on the side of space opposite the site of a hemispheric lesion.

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Balint's syndrome

An attentional disorder where the patient loses the ability to voluntarily shift visual attention to new locations, which is associated with damage to both sides of the brain.

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Blindsight

Residual visual capability supported by subcortical mechanisms following removal or damage to cortical visual areas.

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Altered state of consciousness

A form of experience that departs significantly from the normal subjective experience of the world and the mind.

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Circadian rhythm

A naturally occurring 24-hour cycle.

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REM (rapid eye movement) sleep

A stage of sleep characterized by rapid eye movements and a high level of brain activity.

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Electrooculograph (EOG)

A device that measures eye movements.

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Thermoregulation

Biological processes that maintain optimal body heat during different states of wakefulness.

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Hypnotic Analgesia

The reduction of pain through hypnosis in people who are susceptible to hypnosis.

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Psychoactive drug

A chemical that influences consciousness or behaviour by altering the brain's chemical message system.

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Study Notes

Consciousness

  • Consciousness is a person's subjective experience of the world and the mind
  • The defining feature is experience itself
  • It is utterly private; impossible for one person to experience another's

Chapter 8 Learning Objectives

  • Describe four characteristics of consciousness and some of the major problems of studying it
  • Explain the relevance of key notions including the Cartesian theatre, the homunculus, the philosopher's zombie and animal consciousness
  • Briefly evaluate the evidence for unconscious processes
  • Describe different models of attention with supporting experimental evidence
  • Compare and contrast different states of consciousness including sleep, dreaming, drug intoxication and hypnosis

Conscious and unconscious: the mind's eye, open and closed

  • Daniel Dennett referred to a 'place in your head' as the Cartesian theatre, where 'you' exist
  • It isn't possible to share exactly what's on your mental screen with anyone else
  • Researchers cannot measure the actual conscious experience, even with modern scanning techniques

Mysteries of consciousness

  • The hard problem of consciousness is the difficulty of explaining how subjective experience could ever arise
  • Phenomenology describes the feeling of things in concrete terms of experience
  • Consciousness is an evolutionary human property that may be unique

Who's in control?

  • The homunculus problem describes the difficulty of explaining consciousness by stating that an internal self is responsible
  • If there were a 'mini-me' inside the head, then who is inside the head of the homunculus?
  • Science undermines the reality of free will as a force of personal choice
  • The we think we did it experience could be a way of keeping track of one's decisions and actions (Wegner, 2002)

The problem of other minds

  • The problem of other minds refers to the fundamental inability we have in perceiving the consciousness of others
  • Qualia are subjective experiences that are personal and cannot be directly accessed by others
  • Materialism: Philosophical position that mental states are a product of physical processes alone
  • Others can tell about their qualia, but perhaps they are just saying these things
  • Some believe consciousness is simply something that emerges out of the brain

In What is it like to be a Bat?

  • Philosopher Thomas Nagel (1974) wondered what it is like flying around in a dark cave, sensing the walls through echoes
  • It's hard to imagine consciousness outside of a human context
  • Anthropomorphism is the tendency to attribute human qualities to nonhuman things

The Mind-Body Problem

  • The mind-body problem is the issue of how the mind and body interact
  • Descartes proposed that the mind and soul influence the brain and body through the pineal gland
  • Psychologists assume mental events are intimately tied to brain events
  • One telling set of studies suggests that the brain's activities precede the activities of the conscious mind

Choice Blindness

  • Choice blindness is when people are unaware of their decisions and justify it as if it was already decided
  • The conscious mind - the self or soul - is a spin doctor, not the commander-in-chief'
  • Many of the intuitions can be easily deconstructed and may even be illusions

The nature of consciousness

  • Consciousness has four basic properties (intentionality, unity, selectivity and transience), occurs on different levels, and includes a range of different contents

Four basic properties

  • Intentionality is the quality of being directed toward an object
  • Change blindness describes the unawareness of significant events changing in full view
  • Change blindness reveals that, without attention, we miss much of what is happening
  • Maintaining a coherent unity of consciousness makes it difficult to divide attention among differing events
  • The scope of one's consciousness is limited, which has implications for what is noticed in the world
  • Transience is the tendency of consciousness to change
  • Unity is the resistance to divide attention, such that an attempt to multitasking is not possible as each process ultimately suffers

Levels of consciousness

  • Psychologists distinguish what level of consciousness can be viewed as a spectrum of mental awareness
  • Minimal awareness relates sensations with output action
  • Full awareness relates knowing and being able to report mental state

Conscious Contents

  • Daydreaming refers to a diversion of the conscious mind in terms of a seemingly purposeless flow of thoughts
  • Suppressing the thoughts you don't want often brings them back to mind

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