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Which ion channels are the most important source of IPSPs and why?
Which ion channels are the most important source of IPSPs and why?
Neurotransmitter-dependent potassium channels because of the outward flow of K .
What is a direct agonist?
What is a direct agonist?
A drug that mimics the effects of a neurotransmitter when binding to a postsynaptic receptor.
Where are the two most important serotonergic systems in the brain?
Where are the two most important serotonergic systems in the brain?
Cell bodies are in the dorsal and medial raphe nuclei (nuclei near the midline seam of the brain stem) and project axons to the cerebral cortex, basal ganglia, and dentate gyrus (hippocampus).
What are the six Gestalt principles?
What are the six Gestalt principles?
1. Proximity; the closer objects are to each other, the more likely we are to group them together.
2. Similarity; we group figures together according to how much they resemble each other. 
3. Continuity; edges or contours that have the same orientation are perceived as a continuing line even if part of it is blocked by something else.
4. Closure; we tend to complete figures that have gaps.
5. Illusory contours; we perceive contours and depth cues even when they do not exist.
6. Figure and ground; one part of a scene is assigned as (back)ground and one part of a scene is assigned as figure.
What is special about ganglion cells in comparison to photoreceptors and bipolar cells?
What is special about ganglion cells in comparison to photoreceptors and bipolar cells?
Ganglion cells are the first neurons in the visual system to fire action potentials. Photoreceptors and bipolar cells only release neurotransmitters (mainly glutamate).
What is the difference between inner and outer hair cells?
What is the difference between inner and outer hair cells?
Inner hair cells are necessary for normal hearing. Outer hair cells are effector cells; they alter the characteristics of the basilar membrane and this influence the effects of sound vibrations on the inner hair cells.
What are the roles of the chorda tympani, lingual branch of the ninth cranial nerve, and the vagus nerve (tenth cranial nerve) in the processing of taste?
What are the roles of the chorda tympani, lingual branch of the ninth cranial nerve, and the vagus n...
Information from the front of the tongue travels through the chorda tympani. Information from the back of the tongue travels through the lingual branch of the ninth cranial nerve. Information from the palate and epiglottis travels through the vagus nerve (tenth cranial nerve).
What are decisions?
What are decisions?
Choices between different courses of action.