Bipolarity is a spectrum, not a binary: think of a mood spectrum with no clean line between unipolar and bipolar, and ask how bipolar a patient is rather than whether they are. Uncertainty is wisdom here. Do not rule bipolar disorder out just because you have not seen mania or hypomania in the room.
What it is
A better frame is the mood spectrum: no dividing line between the bipolar and unipolar parts, just a continuum. Bipolarity is the pigment that shifts a basic white paint toward red.
“a better way to think of it is the mood spectrum because really there's no dividing line between the bipolar part and the unipolar part. It's a continuum from one end to another. So bipolarity is the pigment in your basic paint color that shifts it from being white in the direction of red”
21:08How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode Not bipolar I, bipolar II or nothing. The question to ask is how bipolar this patient is.
“I don't think of it as a binary. Someone has bipolar one or bipolar two or nothing. It's a spectrum. And the question that I ask is how. How bipolar is this patient”
52:59Lindsay Clancy Trial: A Forensic Psychiatrist Explains Psychosis, Malingering, & the Insanity DefenseSep 2026 Akiskal's definition: at least one major depressive episode, no spontaneous hypomanic or manic episodes, and either a first-degree relative with bipolar disorder or antidepressant-induced mania or hypomania.
“he defines it as at least one major depressive episode, no spontaneous hypomanic or manic episodes, and then either one of the following, a family history of bipolar and a first-degree relative or antidepressant-induced mania or hypomania”
16:24The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025
Pearls
Mood and anxiety symptoms form a cloud, and recognizing it as a cloud means accepting we cannot be certain. Uncertainty is wisdom.
“So the cloud recognizing that it's a cloud and then saying on that basis, we are not going to be able to be certain. Uncertainty is wisdom”
37:48How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode
Pitfalls
Clinicians act as if bipolar disorder cannot exist unless they see mania or hypomania in front of them. That is not how you should practice medicine.
“it's as if unless this doctor sees mania and hypomania in front of them, the bipolar disorder cannot exist. That's not how you should practice medicine, right”
50:56Lindsay Clancy Trial: A Forensic Psychiatrist Explains Psychosis, Malingering, & the Insanity DefenseSep 2026
It also comes up on
- Bipolar disorderAn episodic, recurrent depressive picture raises the possibility of a bipolar spectrum disorder, or at least mixed, refractory or biological-seeming depression, rather than depression from life circumstances or personality.
- Bipolar disorderInstruments such as the Rapid Mood Screener, Mood Disorder Questionnaire, Bipolar Spectrum Diagnostic Scale and Hypomania Checklist help because they pre-write the questions better. Use the modified Rapid Mood Screener; the original's sensitivity is too low.
- LithiumLow-dose lithium works across the whole mood spectrum. It is least appreciated and most valuable in the middle of the spectrum, sometimes alongside social rhythm therapy or lamotrigine.
- Mixed statesAn episodic, recurrent depression raises the possibility of a bipolar spectrum disorder, or at least mixed, refractory or biological-seeming depression, rather than depression secondary to life circumstances or personality.
- Major depressive disorderDraw a timeline of DSM-defined major depressive episodes with the patient. Episodes that started early and recur should raise suspicion of a bipolar spectrum disorder, or at least of mixed, refractory or biological depression rather than depression from circumstances or personality.
- Major depressive disorderLow-dose lithium is least appreciated and most valuable in the middle of the mood spectrum, sometimes alongside modified social rhythm therapy or lamotrigine.
- Screening questionsInstruments we have seen used for bipolar are the Rapid Mood Screener, the Mood Disorder Questionnaire, the Bipolar Spectrum Diagnostic Scale and the Hypomania Checklist. They pre-write the questions in a much better way.
From these episodes
- How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026 · 2 points
- Lindsay Clancy Trial: A Forensic Psychiatrist Explains Psychosis, Malingering, & the Insanity DefenseSep 2026 · 2 points
- The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 · 1 point
Every point above is something said on the Psychofarm podcast, with the words as spoken and a link to the moment in the episode. It is education, not medical advice, and an episode reflects what we thought when we recorded it.