Chapter 3 Flashcards
What is a neuron?
A nerve cell
What is the synapse?
The tiny space between the nerve ending of one neuron and the dendrite of another
What is a neurotransmitter?
A chemical that, released by one neuron, crosses the synaptic space to be received at receptors on the dendrite of neighboring neurons
What is a receptor?
A site on a neuron that recieves a neurotransmitter
What are hormones?
The chemicals released by endocrine glands into the bloodstream
What is the brain circuit?
A network of particular brain structures that work together, triggering each other into action to produce a distinct kind of behavioural, cognitive, or emotional reaction
What are genes?
Chromosome segments that control the characteristics and traits we inherit
What is brain stimulation?
Interventions that directly or indirectly stimulate the brain in order to bring about psychological improvement
What is electroconvulsive therapy (ECT)?
A treatment in which a brain seizure is triggered when an electric current passes through electrodes attached to the patient’s forehead
What is the ID?
According to Freud, the psychological force that produces instinctual needs, drives, and impulses
What is the ego?
According to Freud, the psychological force that employs reason and operates in accordance with the reality principle
What is the ego defense mechanism?
According to psychoanalytic theory, strategies developed by the ego to control unacceptable ID impulses and to avoid or reduce the anxiety they arouse
What is the superego?
According to Freud, the psychological force that represents a persons values and ideals
What is a fixation?
According to Freud, a condition in which the ID, ego, or superego do not mature properly and are frozen at an early stage of development
What is self theory?
The psychodynamic theory that emphasizes the role of the self - our unified personality