One possible word is drawl.
People who cannot talk may be referred to as mute or nonverbal.
The people who talk to spirits are called as Mediums. All Mediums are not trustworthy. Spirits are already there with you. Dealing with the spirits is not advisable. Spirits always expect that the humans must obey them and act as they like. In the beginning they may be friendly but gradually they will start to reveal their real character. A person who practices black magic must stick to it until death if not he or she may face some trouble. A possessed spirit will not move so easily, so also an invited spirit. When a spirit possesses itself it may be removed but an invited spirit cannot be removed so easily. It is almost impossible. When you invite a spirit, its possession weakens your own spirits. They cannot fight against the invited spirit and they will not. Spirits characters are peculiar. They have their own system of laws. Human beings are ruled by spirits but humans must learn to control and rule the spirits. Spirits possess people according to the mental state of the human beings and keep them in the same state until they are rejected and replaced by another. This is an all time phenomena occurring in all humans. Human beings are always under the influence of spirits. Certain situations and circumstances cause the possession of certain type of spirits. Often thinking and talking about bad subjects or bad imaginations even for fun can take serious turns on one who think and talk. Often thinking and talking about good subjects with good imaginations can create positive effects in your life. Your favorable thoughts and beliefs can bring favorable spirits by your side. The more you think the more would be the possession of that spirit. All spirits (good and bad) have the possessing and dominating nature. Only because of this nature a drunkard dies as a drunkard and a scholar reaches a top position by studying more and more. They can take you to the extent of sacrifice or suicide. All of your activities, talks and even thoughts determine what kind of spirits you will have for your life. Only these spirits are the reason for the good and bad happening in your life. These spirits determine your destiny from your daily activities, talks and thoughts too. Spirits are separate elements. A human being doesn't have a spiritual body. A human being during his/her life time is living with many spirits which have joined one by one since birth. They are knowledge, skills, feelings, emotions, interests and everything. Further there will be always some spirits on behalf of your parents, friends, relatives and other people. These spirits are your consciousnesses and memories. Even thoughts are not your own. For example, when you want to take a decision on a subject, one after another the spirits think and you just listen, choose or reject the ideas which they transmit to your mind through your brain in the form of thoughts. Brain is a device used by your spirits to control your body. A mind is a combination/formation of many spirits which have joined one by one since birth. A mind is just a computer's mind. After the destruction of a computer completely you will not get its mind. The same is the case with the human beings. Soul is nothing but an energy needed for the functionality of a body. It is not a spirit or anything else. A body's functionality is based on the auto mechanism. After death all spirits which accompanied a person quit and go to different places searching new bodies. No one lives after death in any form and there is no afterlife. All human beings are just robots made of flesh and bones and toys of the spirits for their games. You must not leave your mind in its own way. If you do, the spirit will take full control of your mind, then controlling it is not so easy. First of all you must think and believe that it's not you. Then you must command that spirit both mentally and orally to go. Whenever you are possessed by that thought you must divert your mind at once towards some other subject and stay in it for a while and then continue your duty. This is a mental exercise. You may also bring at once an opposite feeling through your imagination. For example if the depression is about your future then you may think, imagine and believe that you are going to live a healthy, wealthy and happy life in future. You must continue this exercise for few days. While doing this exercise you are creating an opposing spirit, i.e., a positive force. Soon this new spirit gets stronger and eliminates the negative force. Within a few days you will be alright.
Therapist
People with schizophrenia may talk a lot. If they talk a lot without making much sense, this is called "schizophasia".
autism
the word is shy
Conversing, conversation, dialog.
It's called communication. No talking, no communication.
talk slowly and do what you have to do to keep contact
An Elephant Called Slowly was created in 1969.
Telepathy
talk quietly talk slowly talk fluently talk clearly talk loudly talk openly talk secretly This is not all there must be many more