Latera

A white ball on black — or a black ball on white — travels left and right across a landscape screen. When it hits a side, a metronome click plays in that speaker: a tick on the left, a tock on the right. That is the whole app. No scenes, no journal, no account. Bilateral stimulation (BLS) is a repeating left-right pattern — something you see, hear, or both — that you follow from side to side. Eye Movement Desensitization and Reprocessing (EMDR) is a psychotherapy approach that uses BLS, often by tracking a moving target with the eyes, usually with a trained clinician. People use Latera’s left-right ball and stereo tick-tock as that kind of BLS. The same rhythm can help with refocusing and calming: it gives attention something steady to track when the mind is scattered. BLS is useful because it is regular and hard to ignore. The eyes keep moving. The sound keeps switching sides. That can make it easier to stay with a session, hold a pace, or come back to the present without a complicated interface. Many people find the repeating motion and stereo tick-tock settling. Latera is a tool, not therapy and not a substitute for a clinician.