Test 1 Vocabulary Flashcards
Cognition
What we know, remember, and think
H.M.
Got surgery to cure epilepsy and he got amnesia . He can remember previous events but can’t form new memory. His hippocampus was damaged and he therefor lost his long term memory
Knowledge
Self-concept, emotions, and understanding
Cognitive Revolution
You cannot study the mind directly so we must study mind to understand
Introspection
William Wundt and Edward Titchener first created this first attempt and experimental psychology. They trained professionals to tell how mind works without any interpretation or bias. This died out as some processes are subconscious, also no way to test these claims. It’s only use is giving ideas of what we can study
Behaviorist movement
Record experience and outputs to create a learning history. Completely ignores brain. How we change in response to stimuli of rewards and punishments. This is unreliable as we act how we interpret the situation, what does this stimuli mean to you?
Transcendental Method
Immanuel Kant created a way to study the mind by refusing to trust the mind . Start with the visible result and work backwards. Such as electrons aren’t visible but we found them by measuring their effects which are visible
Cognitive Psychology
Study mental processes indirectly through measuring the consequences. Relies on performance, response time, and neuroscience based tests.
What did Tolman state
Learning isn’t a change in behavior but an acquisition of knowledge, in the rat maze it took time
Gestalt Psychology Movement
The whole is greater than the parts, you cannot learn how we think just by studying individual components you must look at the whole picture. Therefor we must know mental processes to explain behavior
“Pass the Salt”
Proved why we must study inside this “black box”, you can ask to pass the salt a thousand different ways and each will have the same output, but for others it may be different. We can’t just ignore the brain entirely because everyone interpretation is different and we need to know why
What did Chompsky state
If reinforced is the only way we learn than why can we build our own sentences
Neuropsychology and how does clinical work
Study of brain structures and functions. In clinical cases they understand these structures by analyzing cases where that specific area is damaged. Can’t always be used since you have to wait till someone is injured in that one spot.
Neuroimaging
Produce precise 3-D pictures of the brain that help us find shape size and position and find function through measuring activity levels.
Neuroimaging Techniques
CT scans- old tool for structural imaging. 3D x-ray. Not as precise as a MRI but it’s cheaper so we use it
PET scans- old functional imaging. Intro tracer substance with low radioactivity and scan watches what tissues use the substance
MRI- New primary structural imaging, uses magnetic properties of atoms to show tissue
FMRI- new primary functional images. measures oxygen content in blood flow of each brain region
EEG- Measures electrical pulses of neurons, it usually detects a rhythm and then measures change. Can’t localize it but can generally see changes to a millisecond. Usually used for sleep studies
ERG- EEG but with the eyes
TMS- Creates a temporary lesion with a pulse. Used to see if certain areas are associated with certain functions
Neurons
Nerve cells (billions in our brains) they release neurotransmitters that tell to activate or deactivate, they can hit dendrites that are meters apart.
Capgras Syndrome
Can recognize people but convinced they aren’t real. You look like, sound like, and act like him but your not him. We have two parts to recognize people, factual appraisal (what they look, sound, and act like) and emotional appraisal (familiarity). Capgras lacks the emotional appraisal
Motor Areas
Departure points- signals leave cortex and control muscle
Arrival points- Receive info from senses
Localized Function
Every region has it’s own specific function
Projection Areas
Term from map making as it’s a strip of tissue that maps out what controls what. The most sensitive regions will get the most room
Sensory Areas
Skin senses to goes to parietal lobe, somatosensory cortex. When electrocuted patients report having a tingling sensation
Primary Projection Areas
Motor- is near the rear frontal lobe, fingers have large area where as shoulders have less (twitch). Each body part has own region
Sensory-Somatosensory area behind motor projection area (feel tingle). Each body part has own region S1
Auditory- Temporal Lobes (hear clicks and buzz) Each frequency has own region A1
Vision- Occipital Lobe (see lights and patterns). Each part of field has own region. V1, has many centers as 40% of conterx is vision
Sensory and motor in total only make up 25% of the cerebral cortex
Contralateral
When right side is probed the left side reacts. Every part of brain is like this
Association Cortex
The remaining Prefrontal cortex that connects the sensory and motor areas. It refers to a broad region that we now know can be further divided
Lesions in what lobes do what?
Frontal lobe- Apraxia (voluntary movement)
Occipital or rear parietal- Agnosies (can’t recognize objects)
Parietal lobe- Neglect Syndrome ( ignore 1/2 of the visual world
Lateral Fissure- Can’t produce language
Frontmost Frontal Lobe- can’t learn new strategies just rely on habit
What role does vision have?
It is the most dominant sense that has the most dedicated brain area and if any other information conflicts with visual info you will always trust vision. This is why ventriloquism works and why mirror boxes work
Photoreceptors Path
Light produced by lamps, sun, etc, is reflected into the eye. First it hits the cornea, iris/ pupil, the lens, rods and cones, than the retina. then bipolar to Ganglion through optic nerve into thalamus then Lateral geniculate nucleus then primary vision projection area, then split into different pathways
Job of each part of the eye
Lens adjusts incoming light similar to a camera lens, muscles tighten to bulge lens to see close, muscles relax to see flatten lens to see far away (far away. A lot of movement is for close
Rods are sensitive to low level light to help see in the dark, distinguishes different light intensities. Most rods are on the sides
Cones are sensitive to color difference, there are 3 types that are all sensitive to different wave lengths. It is also able to see fine detail and acuity. Most cones are at the fovea
Cornea- outermost part of the eye is responsible for focus, Lasik surgery tackles cornea issues (close up)
Optic Nerve- axon terminals of ganglion cells, carry information to brain but have no photoreceptors therefor it is a blind spot. Full of P cells and M cells
LGN- Relay center, intermediate step for all senses except for smell and it’s located in the thalamus