Week 2.2.2: Recognising the Self Flashcards
A mental disorder characterized by disruptions in thought processes, perceptions, emotional responsiveness, and social interactions.
Schizophrenia
These are mechanisms by which the brain predicts the sensory consequences of actions it plans to take. This helps differentiate between self-initiated actions and external actions.
Predictive or Forward Models
A specific type of predictive model where the brain sends a signal to the sensory cortex to inform it of an impending movement, helping to maintain stability in perception.
Corollary Discharge Model
This means reducing the strength or intensity of something.
In this context, it refers to the brain’s ability to lessen the sensory response to actions you perform yourself.
Attenuation
The branch of psychology that deals with the relationships between physical stimuli and sensory perceptions.
Psychophysics
This is a mechanism in the brain that helps you distinguish between actions you initiate and actions caused by external factors.
It sends a copy of your motor commands to the sensory parts of your brain to predict and reduce the sensory effects of your own movements.
Corollary Discharge System
The part of the brain that processes sensory input from the body, such as touch, temperature, and pain.
Somatosensory Cortex
Refers to the underlying physical structure or area of the brain that supports a particular function or process.
Think of it as the “hardware” in your brain that makes certain activities possible.
Substrate
Impairments in how sensory information is perceived and responded to
Sensory Processing Deficits
The inefficiency in distinguishing self-generated thoughts from external ones can lead to the feeling that their thoughts are not their own.
This is why they might experience thoughts as being inserted into their mind by an external force
Thought Insertion
How does attenuation affect hallucinations in patients with psychosis or schizophrenia?
Due to the failure of attenuation, individuals with schizophrenia might hear voices or feel sensations that they believe are coming from external sources, even though they are generated by their own brain.
