Psyc 375 Exam Questions with 100% Verified Answers

Psyc 375 Exam Questions with 100% Verified Answers "Dark Current" the steady depolarization maintained by photoreceptors when no light is present 3 cone types blue, green, red 3 main colors red, green, blue a strategy for treating PD there are medications to manage problems with talking, movement, and tremors, since degeneration of the brain creates physical problems. aerobic exercise and physical therapy can also help absorption spectrum The range of a pigment's ability to absorb various wavelengths of light. Accommodation by the lens -contraction of the ciliary muscles causes the lens to become more spherical -change in the lens shape enables the eye to focus on objects that are less than 20 feet away Adenylylation The first step in tRNA charging. Involves the "activation" of an amino acid so that the acid can be bound to a tRNA molecule. The process of activation involves the transfer of an AMP group from ATP to the amino acid Ageusia inability to taste Amilonide water pills to treat high blood pressure amine neurotransmitter A neurotransmitter based on modifications of a single amino acid nucleus. Examples include acetylcholine, serotonin, and dopamine. amino acid neurotransmitters glutamate, GABA, glycine AMPA receptor An ionotropic glutamate receptor that controls a sodium channel; stimulated by AMPA. anosmia absence of the sense of smell aqueous humor the clear fluid filling the space in the front of the eyeball between the lens and the cornea. autoreceptors receptors that respond to the released transmitter by inhibiting further synthesis and release back propagation A process by which learning can occur in a connectionist network, in which an error signal is transmitted backward through the network. This backward-transmitted error signal provides the information needed to adjust the weights in the network to achieve the correct output signal for a stimulus. Barbiturates drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment (binding) basic tastes sweet, salty, sour, bitter, umami Benzodiazepines drugs that lower anxiety and reduce stress The most common group of antianxiety drugs, which includes Valium and Xanax. Flumazenil (binding) bipolar cells eye neurons that receive information from the retinal cells and distribute information to the ganglion cells Bitterness receptors Bitter taste receptors (TAS2Rs or T2Rs) belong to the superfamily of seven-transmembrane G protein-coupled receptors, which are the targets of 50% of drugs currently on the market. Canonically, T2Rs are located in taste buds of the tongue, where they initiate bitter taste perception. Ca2+ triggers the fusion of synaptic vesicles with the presynaptic membrane and release AcH by cAMP gated cation channel Abstract. Cyclic nucleotide-gated (CNG) channels are nonselective cation channels first identified in retinal photoreceptors and olfactory sensory neurons (OSNs). They are opened by the direct binding of cyclic nucleotides, cAMP and cGMP. catechol a phenolic compound found in plant cells Catecholamines hormones secreted by the adrenal medulla that affect the sympathetic nervous system in stress response dopamine, norepinephrine, epinephrine