主题词：Neurotransmitter Receptor Influence on Behavior; Neuroscience and Neuropharmacology Research; Stress Responses and Cortisol; Receptor Mechanisms and Signaling; Neuroendocrine regulation and behavior; Memory and Neural Mechanisms; Nicotinic Acetylcholine Receptors Study; Tryptophan and brain disorders; Cannabis and Cannabinoid Research; Neuropeptides and Animal Physiology; Pain Mechanisms and Treatments; Biochemical Analysis and Sensing Techniques; Attention Deficit Hyperactivity Disorder; Treatment of Major Depression; Behavioral and Psychological Studies; Adipose Tissue and Metabolism; Diet and metabolism studies; Neural and Behavioral Psychology Studies; Olfactory and Sensory Function Studies; Sleep and Wakefulness Research; Biochemical effects in animals; Forensic Toxicology and Drug Analysis; Pharmacological Receptor Mechanisms and Effects; Regulation of Appetite and Obesity; Pharmacological Effects and Assays