W10: Conscious and Unconscious Thought Flashcards
The cognitive unconscious: the mental processes that occur "behind the scenes". * Unconscious processes * Consciousness and executive control
Consciousness
A state of awareness of sensations or ideas, such that you can reflect on those sensations and ideas, and can (in many cases) report to others that you’re aware of the sensations and ideas.
Researchers still disagree about how consciousness should be defined, and this definition has problems - but it’s a good start.
Cognitive unconscious
The broad set of mental activities of which we are completely unaware, that make cognition possible / make possible your ordinary interactions with the world.
Occurs outside of consciousness for efficiency (rather than repressing, as Freud thought).
These processes are sophisticated and powerful - and it’’s actually quite helpful that a lot of mental work can take place without conscious supervision.
Conscious Products
Beliefs you’ve formed, conclusions you’ve reached. The result of (unconscious) processes. We’re often aware of our mental products.
Unconscious Processes
The steps leading to a conclusion which are hidden from view - eg. memory retrieval/ spreading activation, inference or assumptions.
Most of our unconscious processes are strongly guided by the situation, environment, and context that we’re in, or by our prior habits.
Memory Errors
Memory errors are often undetectable, because the process that brings you a “memory” is unconscious - you can’t distinguish genuine recall from (potentially misguided) assumption.
A sense of “knowing” your own thoughts may, in many cases, be an illusion.
Freud’s Unconscious
Freud believed that the unconscious contained all sorts of significant and disturbing material that we need to keep out of awareness because the information is just too threatening to fully acknowledge.
Unconscious Attributions
Attributing (assigning as a cause) one thing to another thing unconsciously.
Example: Nisbett & Schacter’s 1966 experiment.
Participants incorrectly attributed symptoms/ somatic markers to a pill (a placebo) rather than to electric shocks unconsciously, because they were advised that the pill would cause like-symptoms.
After-the-fact Reconstructions
When something happens, we think of an explanation for it which sometimes has nothing to do with why it happened in the first place. The reconstruction feels genuine.
Example: Nisbett & Wilson’s 1977 experiment.
When participants were asked to select the best pair of (identical) stockings, a strong position effect occurred; items on the right-hand side, which were inspected last, were chosen 4x more often than the rest.
Participants rejected positioning and cam up with other reasons why they made the selection they did,
Disruptions of Consciousness
Consider Korsakoff’s syndrome and Blind Sight.
Korsakoff: “memory without awareness”. Implicit memories remain intact with anterograde amnesia; thus, they do take in information but cannot consciously access it.
Blind sight: “unconscious perception”. Unmistakably, it is possible to perceive in the absence of consciousness.
Anterograde Amnesia
Patients cannot form NEW memories (post-event) yet do have implicit memories; they do take in information, but cannot consciously access it - as seen by completing word-stem tests.
Blind Sight
For all practical purposes, patients are “blind”, yet, although these patients are unaware of seeing, in some ways they “can see”. Thus, there is a difference between “perception” and “conscious perception” - it is possible to perceive in the absence of consciousness.
This may be because of “islands” of intact tissue within the damaged brain area or because of several neural pathways carrying info from the eyeballs to the brain.
Subliminal Perecption
Perception below the limen or threshold of conscious awareness. People can perceive & be influenced by visual inputs they didn’t consciously see.
From an experiment measuring N400 waves:
- subliminal words were detected and influenced subsequent perception
- People seemed to be able to (at least in some limited way) integrate subsequent perception.
N400 waves
A component of time-locked EEG signals known as event-related potentials (ERP).
Larger N400 waves occur when participants encounter a sequence of words that violates their expectations, eg. “very + happy + war”
Pre-requisites for Executive Control
- Initiate actions:
means of launching desired actions & overriding unwanted actions - Represent goals and plans:
representation to serve as guides to action - Know what’s going on:
what’s happening in the mind? What information is coming in? How can they be integrated with one another? Any conflict between incoming info or between info and current goals? - Smoothness:
Know how smoothly and easily current processes are unfolding.
Action Slips
The largely uncontrolled nature of routine makes it easy for you to become a victim of habit, relying on customary patterns even if you hope to avoid them.
Example:
Missing a turn to your friends house because you automatically take the home-route.