The most agreed upon emotional facial expression across cultures
What is happiness?
Disorder characterized by social avoidance and aversive response to social situations
What is social anxiety disorder?
The dose of a drug required to produce a desired effect
What is potency?

Neuroimaging technique that measures activity via localized blood oxygen saturation
What is functional magnetic resonance imaging (fMRI)?
Psychiatric disorder that includes ventricular enlargement and hypofrontality
What is schizophrenia?
The second phase in the general adaptation to stress theory
What is resistance?

Brain structure commonly found to be atrophied in patients diagnosed with PTSD
What is the hippocampus?
Subclass of SUD symptoms that includes cravings, tolerance, and withdrawal
What are physical dependence symptoms?
Neuroimaging technique that uses radioactive markers to visualize tissue function
What is positron emission tomography (PET)?
Technique that measures brain activity by placing electrodes on the skull
What is an electroencephalogram (EEG)?
Lesions to this brain region result in Kluver-Bucy syndrome
What is the medial temporal lobe?
Psychiatric disorder characterized by intact morality but a deviated sense of right vs wrong
What is sociopathy?
This licit substance works by enhancing GABA-A and reducing NMDA activity
What is alcohol?
A technique that tests a rodent's pain and pressure response by poking its foot with different-sized filaments
What is the Von Frey test?
Slow acting stress response pathway that results in the release of glucocorticoids
What is the Hypothalamic-Pituitary-Adrenal (HPA) axis?

Subclass of schizophrenia symptoms that includes poor memory, abnormal movement, and low attention span
What are cognitive symptoms?
Non-competitive NMDA receptor antagonist that binds below the Mg2+ block
What is phencyclidine (PCP)?

Technique that measures EPSPs and IPSPs from tissue outside the body
What is ex-vivo electrophysiology?
The three endogenous opioids
What are endorphins, enkephalins, and dynorphins?
Dopaminergic projection from the VTA to the nucleus accumbens that elicits positive emotion
What is the medial forebrain bundle?
A gene that controls synaptic plasticity and is associated with schizophrenia
What is Dysbindin?
This illicit substance works by binding to dopamine transporters and inhibiting reuptake
What is cocaine?
Sodium channel activated by blue light (473 nm)
What is channelrhodopsin?
Way to remember: The English channel is blue
Ex-vivo technique used in humans to measure the quantity of certain neurotransmitters
What is magnetic resonance spectroscopy?