Tetrahydrocannabinol (THC) is the principal psychoactive compound of cannabis and one of at least 113 total cannabinoids identified on the plant.

In the psychology context, THC is studied for its effects on the brain and behavior.

When THC is consumed, it binds to specific receptors in the brain called cannabinoid receptors, which are involved in a variety of processes such as memory, mood, pain perception, and appetite. This binding can lead to changes in perception, mood, and cognitive function, which are the primary effects of using cannabis.

Examples of the effects of THC on the brain and behavior include:

The effects of THC vary depending on the dose and the individual's sensitivity to the compound. In addition, THC can have different effects depending on the context in which it is used. For example, it can have therapeutic benefits in the treatment of certain medical conditions, such as chronic pain, but it can also have negative effects, such as impairing driving ability or leading to addiction.

It's important to note that THC is a controlled substance, and its use and possession are illegal in many countries and states.