Final answer:
A substance that disrupts normal psychological function when introduced to the body is called a poison, which can be a metabolic poison, psychoactive drug, or an endocrine disruptor.
Step-by-step explanation:
The term for any matter or substance that interferes with the normal psychological function when inhaled, ingested, injected, or absorbed into the body is poison. These substances can be metabolic poisons such as carbon monoxide and cyanide, which interfere with the delivery of oxygen to bodily tissues and cellular respiration. Poisons also include a variety of chemicals that may disrupt the central nervous system, such as psychoactive drugs that impact neurotransmitter systems leading to alterations in mood, thinking, perception, and/or behavior. Similarly, certain compounds may act as endocrine disruptors causing negative effects on developmental, reproductive, neurological, and immune systems in humans and wildlife.