Biopsychology 4.0 / 5 based on 1 rating ? PsychologyBiopsychologyA2/A-levelAQA Created by: livpickfordCreated on: 14-03-17 21:17 Central Nervous System Brain and spinal cord. Is the origin of all complex commands and decisions 1 of 26 Peripheral Nervous System Sends info to CNS from the outside world, transmits messages from the CNA to muscles and glands in the body 2 of 26 Somatic Nervous System Transmits info from sensory receptors to CNS. Receives info from CNS to use muscles 3 of 26 Autonomic Nervous System Transmits info to and from bodily organs, controls involuntary actions. Split into sympathetic and parasympathetic nervous systems 4 of 26 Sensory neurons Carry messages from the PNS to the CNS 5 of 26 Relay neurons Connect sensory neurons to motor neurons and other relay neurons 6 of 26 Motor neurons Connect CNS to muscles and glands 7 of 26 Synaptic transmission Neurons communicate with each other by sending chemical signals across the synaptic cleft between them 8 of 26 Neurotransmitters Brain chemicals released by synaptic vesicles that relay signals across the synapse from one neuron to another 9 of 26 Excitation When a neurotransmitter increases the positive charge of the post-synaptic neuron, making it more likely for the electrical impulse to pass on 10 of 26 Inhibition When the charge of the post-synaptic neuron becomes more negative, the electrical impulse is less likely to pass on 11 of 26 Motor area Part of the frontal lobe involved in regulating movement 12 of 26 Somatosensory area Area of parietal lobe that processes info from the senses 13 of 26 Visual area Part of the occipital lobe that receives and processes visual info 14 of 26 Broca's area Frontal lobe in left hemisphere, responsible for speech production 15 of 26 Wernicke's area Part of the temporal lobe in the left hemisphere responsible for speech comprehension 16 of 26 Plasticity Brain's tendency to change and adapt due to experiences and learning 17 of 26 Functional recovery Following trauma the brain is able to relocate functions to undamaged areas 18 of 26 fMRI scans Detects blood flow in the brain to see most active areas 19 of 26 EEG Measures electrical impulses in the brain, can be used to diagnose things like epilepsy 20 of 26 ERP Statistical analysis of EEG results 21 of 26 Circadian rhythm Rhythm that lasts about a day e.g. sleep wake cycle and body temp cycle 22 of 26 Infradian rhythm Less than one cycle in 24 hours e.g. menstruation 23 of 26 Ultradian rhythm More than one cycle in 24 hours e.g. sleep stages 24 of 26 Endogenous pacemakers Internal body clocks e.g. SCN's affect on sleep/wake cycle 25 of 26 Exogenous zeitgebers External cues that affect biological rhythms e.g. sunlight 26 of 26
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