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44 Cards in this Set
- Front
- Back
Action potential |
action potential/ nerve impuls. Goes down the axon |
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Axon |
Transmit signals to other neurons |
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Brain imaging |
Exempel PET scan |
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Broca's aphasia |
Damage to frontal lobe causes confusion in understanding the meanings of words and form |
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Broca's area |
Frontal lobe, language |
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Cerebral cortex |
layer of tissue about 3 mm thick that covers the brain |
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Cognitive neuroscience |
the study of physiological basis of cognition |
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Dendrites |
branch out from the cell body to receive signals from other neurons |
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Distributed coding |
The code that indicates a specific face distributing across a number of neurons |
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Distributed processing |
Specific functions are processed by many different areas of the brain |
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Event-related potential (ERP) |
A method of recording rapid electrical responses of the human brain
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extrastriste body area (EBA) |
Part of the brain that gets activated by pictures of bodies and part of bodies. ( not faces) |
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Feature detectors |
"Tree" We don't see the tree through direct contact with it, but through the way it's represented by action potentials in the brain |
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Frontal lobe |
Part of the brain that receives signals from all of the senses |
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Functional magnetic resonance imaging (fMRI) |
Measurement of blood flow in the brain without radioactive |
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Fusiform face area (ffa) |
Are in brain that recognizes faces |
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Grandmother cell |
According to Lettvin, a neuron that respons only to a specific image, such as a picture of your grandmother |
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Localization of functions |
Specific functions are served ny specific areas of the brain. |
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Microelectrode |
Small shafts of hollow glas filled with a conductive salt solution that can pick up electrical signals and conduct back to device |
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Module |
Area specialized for a specific function |
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Nerve fiber |
Axon/nerve fiber |
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Nerve impuls |
Electrical signal (action potential) |
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Nerve net |
A complex pathway for conducting signals uninterrupted through the network
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Neural circuits |
Many neurons connected together |
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Neural code |
The way patterns of neural firing represents environmental stimuli |
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Neuron |
Basic building blocks of the brain |
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Neuron doctrine |
the idea that individual cells transit signals in the nervous system, and that they are not a net |
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Neurotransmitter |
When a signal reaches the end of an axon, a chemical (neurotransmitter) is released to make it possible to go over the synaptic gap to dendrites |
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Occipital lobe |
Vision |
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Parahippocampal place area (PPA) |
Area that gets activated by pictures of indoor and outdoor scenes
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Parietal lobe |
Skin, senses, touch, pain, temp |
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Positron emisson tomography (PET) |
Blodflöde med radioaktivt ämne |
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Primary receiving area |
The first areas of the cerebral cortex to receive signals from each of the senses |
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Prosopagnosia |
An inability to recognize faces |
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Receptors |
Neurons that picks up information about the environment (skin, eye, ear) |
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Recording electrode |
Connected to a device to record microelectrodes |
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Reference electrode |
located outside the tissue, connected to the recording device to record microelectrodes |
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Retina |
The layer of neurons that line the back of the eye |
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Specificity coding |
The representation of specific stimulus, and neurons that respond to just that face |
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Subtraction technique |
Control activity - stimulation activity (to measure brain activity) |
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Synapse |
The gap between an axon on one neuron and the dendrites or cell body of another neuron |
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Temporal lobe |
Auditory |
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Wernicke's aphasia |
Unable to understand speech and writing |
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Wernicke's area |
Area in temporal lobe. Fluent speech but incoherent |