brain and behaviour+ psychological disorders Flashcards
stages of memory
REGISTRAITON (input from our senses into memory system), ENCODING (processing and combining information), STORAGE (holding that info in memory system), and RETRIEVAL (recovring stored info from memory system ie remembering)
types of long term memory
declarative (either episodic ie life memory eg what happened last night, or semantic ie recalling info) or non-declarative (doing procedures, priming, CLASSICAL conditioning) ie doesn’t require THINKING
how to enhance memory in a clinical setting+ general example
give important info at beginning and end of consultation, repeat important info, chunk info into important categories, avoid overloading with information- MNENOMICS useful example to enhance memory
brain regions associated with language including hemispheric specialisation
there is hemispheric specialisation for language- nearly ALL right handers have left hemisphere dominance for language, and MOST left handers and left hemisphere dominance as well- brochas and wernickes (both in left hemisphere) and motor cortex also important
types of aphasia with key features
expressive (brochas) aphasia- can understand, but non-fluent speech with lots of repetition): receptive (Wernicke’s) aphasia- can’t understand speech, and speech is fluent, but lots of errors, and substitutes for words similar in sound/meaning
dysexecutive syndrome- include damage to what part of brain
disruption of executive function (planning, focusing attention and doing multiple tasks), often due to frontal lobe damage, but also subcortical areas (eg parkisons)
key features of someone with this dysexecutive syndrome
eithe hypoactivity (lack of motivation, no empahty), or hyperactivity (perserveration,socially inappropriate, rude), as well as cognitive aspects (memory diffiuclty, poor planning+ multitasking)
neural correlates of memory- declarative vs non-declarative
declarative mainly hippocampus (medial temporal lobes), but non-declarative involves striatum, cortex and amygdala
exposure therapy to anxiety- who used for, what it is, what types of conditioning involved, what it’s also known as
eg for someone who is scared to drive after a car accident ie ANXIETY responses- treat via exposure to conditioned stimulus (car) WITHOUT unconditioned stimulus (accident)- involves both classical AND operant conditioning approaches- known as systematic desensitisation (GRADUAL exposure)
key features of cognitive behavioural therapy- example of what used for
focuses on problematic beliefs that cause disorders eg thinking you have a heart attack every time you are out of breath- it’s GOAL ORIENTED (ie specific goals), there’s a COLLABORATIVE RELATIONSHIP between therapist and patient, it’s BRIEF, and takes SCIENTIFIC APPROACH- often used for cardiac anxiety
symptoms for diagnosis of depession
depressed mood and diminished interest for at least 2 WEEKS, changes in appetite/sleep, fatigue, difficulty concentrating, excessive guilt
guidelines for treatment for depression
CBT (psychotherapy) first line for mild/moderate depression, antidepressants should be used for more severe cases, and not routinely (MAY be mostly placebo)
example of psychological intervention
mindful based cognitive therapy- pay attention on the present: cortisol levels decreased after this therapy