A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an amphetamine stimulus. Amphetamines consist of a group of compounds related to alpha-methylphenethylamine [goid 1975] [evidence IEA]; The process by which the renin-angiotensin system controls the rate of fluid intake and output into the blood [goid 2016] [evidence IEA]; The process by which a G-protein coupled receptor is taken up into an endocytic vesicle [goid 2031] [pmid 18424554] [evidence IDA]; The regulation of the levels, transport, and metabolism of calcium ions within a cell or between a cell and its external environment [goid 6874] [pmid 7911712] [evidence IDA]; The cascade of processes by which a signal interacts with a receptor, causing a change in the level or activity of a second messenger or other downstream target, and ultimately effecting a change in the functioning of the cell [goid 7165] [evidence IEA]; The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand [goid 7186] [evidence IEA]; The series of molecular signals generated as a consequence of a dopamine receptor binding to its physiological ligand, followed by activation of adenylyl cyclase and a subsequent increase in the concentration of cyclic AMP [goid 7191] [evidence IEA]; Any process that stops, prevents or reduces the frequency, rate or extent of adenylate cyclase activity [goid 7194] [pmid 7907363] [evidence IDA]; The series of molecular signals generated as a consequence of a dopamine receptor binding to its physiological ligand, followed by inhibition of adenylyl cyclase and a subsequent decrease in the concentration of cyclic AMP [goid 7195] [pmid 18424554] [evidence IDA]; The series of molecular signals generated as a consequence of a dopamine receptor binding to its physiological ligand, followed by inhibition of adenylyl cyclase and a subsequent decrease in the concentration of cyclic AMP [goid 7195] [pmid 7907363] [evidence IDA]; The specific movement from place to place of an organism in response to external or internal stimuli. Locomotion of a whole organism in a manner dependent upon some combination of that organism's internal state and external conditions [goid 7626] [evidence IEA]; Any process in an organism in which a change in behavior of an individual in response to repeated exposure to a visual cue [goid 8542] [evidence IEA]; Any process that modulates the frequency, rate or extent of the regulated release of dopamine [goid 14059] [evidence IEA]; Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving lipids [goid 19216] [evidence IEA]; Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate) [goid 30814] [pmid 8666994] [evidence IDA]; Any process that modulates the frequency, rate or extent of gene expression such that an expression pattern recurs with a regularity of approximately 24 hours [goid 32922] [evidence IEA]; Any process that modulates the frequency, rate or extent of growth of the body of an organism so that it reaches its usual body size [goid 40014] [evidence IEA]; The chemical reactions and pathways involving dopamine, a catecholamine neurotransmitter and a metabolic precursor of noradrenaline and adrenaline [goid 42417] [pmid 8301582] [evidence IC ]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease [goid 42493] [evidence ISS]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a morphine stimulus. Morphine is an opioid alkaloid, isolated from opium, with a complex ring structure [goid 43278] [evidence IEA]; A change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ethanol stimulus [goid 45471] [evidence IEA]; The process by which the force of blood traveling through the circulatory system is decreased [goid 45776] [evidence IEA]; Any process that activates or increases the frequency, rate or extent of mitosis [goid 45840] [evidence ISS]; A change in the behavior of an organism as a result of a cocaine stimulus [goid 48148] [evidence IEA]; Any process that stops, prevents or reduces the frequency, rate or extent of oligodendrocyte differentiation [goid 48715] [evidence IEA]; The regulated release of arachidonic acid from a cell or group of cells [goid 50482] [pmid 8301582] [evidence IDA]; Any process that stops, prevents or reduces the frequency, rate or extent of the regulated release of a protein from a cell or group of cells [goid 50709] [pmid 16839358] [evidence IDA]; Involuntary movement caused by the application of a stimulus to an organism and a subsequent movement. The signal processing of this movement takes place in the spinal cord [goid 50883] [evidence IEA]; Any process that modulates the frequency, rate or extent of the directed movement of the catecholamine neurotransmitter dopamine into a cell [goid 51584] [pmid 8301582] [evidence IC ]; Any process that stops, prevents or reduces the frequency, rate or extent of the protein kinase B signaling cascade, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B [goid 51898] [evidence IEA]; The process by which a startle magnitude is reduced when the startling stimulus is preceeded by a low-intensity prepulse [goid 60134] [pmid 18325483] [evidence IMP]; Any process that stops, prevents or reduces the frequency, rate or extent of dopamine receptor protein signaling pathway activity. A dopamine receptor signaling pathway is the series of molecular signals generated as a consequence of a dopamine receptor binding to one of its physiological ligands [goid 60160] [evidence IEA]; Any process that activates or increases the frequency, rate or extent of dopamine receptor protein signaling pathway activity. A dopamine receptor signaling pathway is the series of molecular signals generated as a consequence of a dopamine receptor binding to one of its physiological ligands [goid 60161] [evidence IEA]