You can train the part of acting that usually gets dismissed as talent. The American Laboratory Theatre helped make that proposition concrete in New York during the 1920s. Its importance lies in the work actors and directors studied: attention, emotional resources, purposeful action, observation and the shaping of a character.
Training
Richard Boleslavsky and Maria Ouspenskaya, both associated with the Moscow Art Theatre, led the Lab. You can follow its work from 1923 to 1930 through its teaching and production history. You should distinguish the school’s teaching from the producing company’s changing fortunes.
Lee Strasberg and Harold Clurman studied in its directing program, and Stella Adler studied acting. Their later work gives you several paths through the Lab’s influence on American theatre. The school and the producing company faced different practical pressures, including financial difficulties.
Curriculum
Boleslavsky’s Acting: The First Six Lessons, published in 1933, organizes its dialogue lessons around concentration, memory of emotion, dramatic action, characterization, observation and rhythm. A later documentary edition adds Lab lectures and notes on Ouspenskaya’s teaching. The book gives you a reading route into the work; it is not a complete transcript of every Lab classroom.
Treat the six headings as different assignments. Concentration asks where your attention goes. Dramatic action asks what you do toward a result. Observation enlarges the behavior you can recognize. Characterization shapes your choices for a particular person. Rhythm asks how the life of the scene moves. Emotional memory concerns a resource you might bring, rather than a requirement to display a feeling on command.
Contribution and influence
The Lab offered a bridge between Russian studio research and American rehearsal. You could study repeatable aspects of your craft while preparing work for performance. That connection is useful whenever an exercise seems satisfying in class but disappears as soon as you face a scene partner.
Consider how several skills might support one small moment. If your character conceals a letter, you need attention to its location, a clear reason to hide it, awareness of the other person and a rhythm appropriate to the danger. Training becomes legible through behavior.
Context and limitations
The six lessons are compact literary dialogues, written after the Lab’s principal years. You lose historical detail if you treat them as the school’s entire syllabus. You also erase Ouspenskaya’s contribution if every lesson becomes Boleslavsky’s alone.
For your own work, naming six capacities does not tell you which needs attention today. A difficulty that looks emotional may come from an unclear action, or from not understanding the circumstances. Diagnose the practical obstacle before choosing a technique. An inherited label should help you look more closely.
Attention has an object
The Lab’s place in acting history becomes clearer when you consider the kind of attention the work develops. You can be intensely concerned with whether you are acting well and have very little attention left for the scene. Concentration gives that energy somewhere specific to go: a task, an object, a partner, an imagined condition. You become occupied by something that belongs to the dramatic world.
That occupation has consequences. If you need to read a letter before another person sees it, your attention is divided by the task and the danger. You cannot decide every adjustment in advance. The circumstances require you to keep discovering what to do. This is an illustrative acting situation, not a recovered Lab exercise.
Observation and characterization
Observation expands the range of behavior available to your imagination. You can notice how someone waits for permission, checks whether they have been heard, or arranges objects before speaking. Characterization asks you to select and organize such possibilities for the person in the play. The task is artistic composition: details need to belong together and serve the role.
Boleslavsky’s six lessons place these capacities beside dramatic action and rhythm. Their relationship matters. An observed habit acquires dramatic meaning when it affects an action. A character who repeatedly checks the door may be protecting an opportunity, anticipating an arrival, or avoiding discovery. The behavior becomes specific through its purpose and timing.
Rhythm as the life of the event
You can read rhythm as more than speed. An encounter contains patterns of insistence, hesitation, interruption, and release. Your character may move slowly while trying urgently to obtain an answer. A scene may seem calm until a small disruption reveals the pressure beneath it. Rhythm gives you a way to attend to those relationships.
In ensemble work, your rhythm also meets other rhythms. One person’s patience can intensify another’s impatience. A delayed response can force a new tactic. The scene develops through that exchange. You can prepare its circumstances and actions while leaving the timing responsive to what actually occurs.
A bridge carried by several artists
The Lab brought acting and directing students into contact with teaching rooted in Moscow Art Theatre practice. Boleslavsky and Ouspenskaya contributed to that transmission through their own work as performers and teachers. Later American artists carried what they learned into new companies and classrooms, including the Group Theatre.
You can follow that history through Boleslavsky’s work and the Group Theatre. The practical inheritance is the idea that attention, action, observation, and form can be studied deliberately, then brought into the unpredictable encounter of a scene.
Related reading
Read the six lessons in order, then use the documentary edition to distinguish the later book from Lab material. The NYPL archive supplies a different kind of evidence through school and production records. Compare your findings with Concentration, Action and Characterization.
Source for further study: Boleslavsky’s Acting: The First Six Lessons.