Dark Thoughts

by Sarosh Motivala, PhD


To understand dark thoughts we need to approach things with a fresh set of eyes; a healthy curiosity to examine difficult things with an open, inquisitive mind.

Mental experiences

Obsessions exist in the realm of mental experiences. They are subjective. I can’t tell what’s going on in your head - but you can. Similarly, you can’t tell what is going on in my head. But we can agree that there are types of mental experiences. Here’s something I’d like for you to play with: the user interface of the mind is built to simulate social interaction between two people. For example, I can talk to myself. Talking to myself involves speaking, internally to myself. My self or mind can talk back to me. It can communicate with me verbally (eg “Remember to mail that letter”) .

In addition to verbal interactions, my mind can communicate to me in other ways - with emotions. So what exactly is an emotion? We can slide down a slippery slope easily on this one. I will take a stab at a generic description for now (for more on this, Paul Ekman and Richard Davidson have a thoughtful book called The Nature of Emotions). Let’s say emotions are subjective, perceptual “states” of being that feel pleasant or unpleasant, with varying intensity. They can be brief or longer lasting, they have a “motivational” quality - in that they propel us to certain actions. They also have a social, communicative quality in that I might feel the urge to share or “let out” something or often others can guess or relate to what I am feeling.

Emotions are like colors - there are some primary ones and then there are an incredible assortment of blends. In OCD, the dominant emotions are anxiety, fear, panic, shame and disgust. Back when I was in academia, I had a conversation with a friend of mine who was trying to do a research study on emotions and the kinds of thinking that arises with specific emotions. One day I ran into him in our office hallway and he looked really frustrated. I asked him what was going on. He told me he was having trouble with his study because it was extremely difficult to devise aa procedure that cleanly and consistently produced a single emotion. “There’s always other stuff going on!” He told me that people might be anxious but also irritated; or a little sad. My take home message from this is that emotional experience can be simple at times, but a considerable amount of times it is complex. Sorry to make things even more complicated, but in OCD, people can feel considerable anxiety, panic, or fear about experiencing anxiety, panic, or fear. These “meta” emotions are emotions about an emotion. “I’m angry that I feel scared” or “I’m ashamed that I feel so panicked”. or “I’m nervous that I might get scared”. So besides verbal interchanges, our mind can communicate with us with emotions, and with emotions about emotions.


Our mind also communicates with us via intuitions and urges. An intuition can be thought of as emotion-laden sense of “knowing”. Here are some examples of types of intuitions: “I just know that this is the right thing for me to do”; “I have a feeling that something bad is going to happen”. Closely aligned with intuitions is another type of mental experience: urges. When partnered with emotions, urges are strong propellers of action. “I need to get out of here”. An urge is almost like an unpleasant feeling about being inactive coupled with a “promise” that some goodness will arrive if I engage in a specific action. Let’s look at thirst. I once was hiking on a trial in the Grand Canyon and ran out of water. My mouth was parched and I felt this uneasy dry mouth feeling - I’d also get images of being at the Canyon lodge cafeteria drinking a tall tumbler of water filled with ice. I could visualize it and it looked so gorgeous and I could feel that cold rush that would happen as I tipped the glass and felt the water gloriously run through my body. Do you know that feeling? So urges have this dual action of uneasiness with the present combined with a sense of fulfillment when the desired action is taken.

So let’s summarize. We talk to ourselves. We talk to our mind and our mind talks back. Our mind is not a unitary virtual person, but instead a variety of characters. Our mind communicates with us conversationally with words, with images, with emotions, with urges, with intuitions. See where I’m going with this? So far so good. But we haven’t addressed obsessions, compulsions, and all that good stuff. But before I do, first let’s characterize a few more players.

The negative propaganda machine

I’d like to propose to you that our minds have certain pumps; these pumps pour specific kinds of thoughts into our consciousness. I had the good fortune to be listening to an interview with Bill Nighy, a British actor who has been in a number of movies that I really like. This was back when I used to listen to radio. Remember the radio? Anyway, the conversation turned to depression and he described an inner voice he struggled with - he called it the negative propaganda machine. He described how it would fill his mind with dark, critical, horrible statements about himself; about his work, relationships and about his personhood. I could relate to this. What is this thing? This soulless machine pumping negative junk into my mind space.

Negative Automatic Thoughts

The negative propaganda machine was a central piece to the pioneers of cognitive-behavior therapy. In the formulation of what would eventually become cognitive therapy, Aaron Beck wrote that a depressed patient he worked with “consistently embraced a negative construction of himself and his life experiences”. These negative constructions included negative judgments of the world, the future and oneself. Today, psychologists

who specialize in CBT are interested in thoughts or thinking that have specific attributes. Early on in the development of CBT, researchers were interested in negative, automatic thoughts (NATs): automatic spontaneous thoughts about the self, self-efficacy and the future (“you are a loser”; “you will never succeed”, “you are going to become destitute and alone”). These thoughts “pop into” awareness, sometimes out of the blue, but often are triggered by situation you are in or what you are thinking about or doing. They seem to revolve around themes of loss, failure and danger. NATs are common, especially in depressive and anxiety disorders. NATs show up verbally; to the person experiencing NATs, the NATs seem believable and the person may even agree with them at times (“I really am hopeless”).

So far, we’ve speculated that my mind and I communicate with each other. My mind is complex and communicates in a variety of ways (via thoughts, images, urges, intuitions) and there are “pumps” that infuse my consciousness with specific kinds of ideas, images, urges or intuitions. One such pump is the negative propaganda machine that pumps NATs - negative thoughts about myself, my world and my future into my awareness. But in this story, there is another pump and it is even weirder and freakier than the negative propaganda machine.

The slime machine

Slime is popular these days. Kids like to make homemade versions of it. But I think it is gross. I don’t like it and if I get some on my hands, I will try to get it off as quickly as possible. Merriam-Webster offers up two curious definitions of slime- a viscous, glutinous or gelatinous substance and a morally repulsive or odious person. One definition is a physical phenomena and the other is a mental or social phenomena. And just like the Nickelodeon channel’s tendency to drop slime on people’s heads, we have a slime pump that drops slimy thoughts into our consciousness.

Disturbing, unwanted thoughts. Where do they come from? What do they want? What are they?

Thoughts like: “What if I left the door unlocked and an intruder is inside?” “What if I drove off the road right now?” “What if I had an impulse and caused a scene?”

73 - 60 - 45. These are the percentages of people who report that they have had the above disturbing thoughts frequently (if you have access to it, the research study was reported in a paper by Purdon and Clark in 1993 in Behavior Research & Therapy).

But wait there’s more. In their study they found that 21% of a random sample of young adults reported being disturbed by thoughts like “When I see a sharp knife, I have the thought of slitting my wrist or throat”. 48% reported having unwanted thoughts about running over pedestrians or animals while driving; 19% had frequent unwanted thoughts about exposing themselves in public and 55% reported unwanted sexual thoughts about a boss, teacher or other authority figure. Whoa! What’s going on here?

A more recent series of papers reported findings from an international multi-site study on bad slimy thoughts. Psychologists and psychiatrists call these types of thoughts /intrusions/. It looks like the slime machine pumps in intrusions in almost everyone. 96% of people in Turkey, 97% of people in Hong Kong and 100% of people in Iran who participated reported having these kinds of intrusive, disturbing thoughts in the past three months. Sadly, North Americans, South Americans and Europeans too had percentages ranging from 84% to 100%. Remember these participants were drawn from the general population, not a mentally unwell subgroup. Radomsky and a large group of coauthors summarized their findings in the Journal of Obsessive-Compulsive and Related Disorders in 2014.

Just like the propaganda machine that pumped in scary, depressing, hopelessness generating thoughts about ourselves, our world and our future, it seems like the slime machine pumps in weird, disturbing and shocking thoughts. Although nearly everyone seems to have these thoughts there are occasional. Thankfully the slime machine doesn’t repeatedly dump their minds with sludgy, slimy thoughts.

But what if it did?


Some people get deluged with disturbing thoughts that they struggle mightily to get rid of. We can imagine that their slime machine is big and nasty. Let’s call these kinds of thoughts obsessions.

In contrast to intrusions, that are experienced by virtually everyone, obsessions are different. Obsessions are more frequent, associated with stronger negative emotions, are considered more meaningful, and come with a much stronger urge to resist.

An unresolved puzzle is whether obsessions are intrusions that morphed into obsessions, or whether they are two separate things that have some similarities. We can explore that down the road, but for now, suffice it to say that our minds communicate with us via thoughts, images and impulses. Also, our mind has a few mental machines that squirt thoughts into our awareness. Some are like NATs, some are intrusions, and for some people, there is an obsession machine.

David A. Clark (in Cognitive Behavior Therapy for OCD, 2004) writes that obsessions have five attributes. They are: 1) *intrusive*; that is to say, the thought, image or impulse enters awareness “against one’s will”; 2) *unacceptable* - they are distressing in varying intensity to the person having the obsession; 3) *accompanied by an urge to resist*, the person feels a strong urge to resist, suppress, dismiss the obsession from conscious awareness; 4) *uncontrollable* , a person senses that their ability to control or suppress the obsession is i too brief or ineffective; 5) *ego-dystonic* meaning the obsession can (but not always) involve ideas that might be threatening to one’s sense of self or violate one’s sense of values or morality.

There is one last quality to obsessions that make them stand out: the person experiencing them can have trouble distinguishing the obsessional mental experience from tangible reality. A thought feels like reality. If I have a thought that I might be a child molester, I may actually feel like I am a child molester. If I see an image of a spider, I actually feel like I am seeing an actual spider. This blurring of the lines between external reality and subjective experience is extremely disturbing to the experiencer. Some people have described to me that at times, when anxious, they feel like they have a split brain - one part that “sees” that what is going on and realizes it is irrational, and another part that “feels” the obsession is real. The path to getting through and managing OCD can be difficult. But starting with a willingness to learn and understand what obsessions are and how our minds tend to work can help in making the route clearer.