UNCLASSIFIED // PUBLIC RELEASERELEASE 06 · SEPTEMBER 18, 2026
PENTAGON UFO FILE · DOCUMENT · DOW-UAP-D130AAWSAP DIRD, Technological Approaches to Controlling External Devices, March 2010
Written in March 2010 for the AAWSAP program, this DIRD is a review of brain-machine interfaces: systems that let a person operate a machine using signals from the nervous system instead of hands on controls. The release describes a neuroscience and engineering survey, not a sighting report.
Implants versus headsets
The paper explains the kinds of neural and physiological signals that can be tapped, and the difference between open-loop control, where commands simply go out, and closed-loop control, where the user gets feedback. It then compares the options, from electrodes on the scalp and magnetic or imaging methods to electrodes implanted in the brain’s cortex, judging each on how much information it can carry, how quickly it responds, how clean its signal is, and how usable it would be in practice.
Its near-term verdict favors non-invasive electrical recording, which in practice leans on muscle activity as well as brain signals. Fast, rich control, the author argues, would eventually need implants able to talk to individual neurons in both directions.
Where it fits in the series
The series returns to thought-based control elsewhere, for example in Cockpits in the Era of Breakthrough Flight. The paper still describes natural, high-performance thought control as limited by hard technical and physiological constraints, and the released copy is redacted.
The official description
From war.gov/UFO, released September 18, 2026, quoted in full
This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed.
This DIRD surveys brain-machine interface technologies intended to allow users to control external devices without conventional manual controls, and it evaluates both noninvasive and invasive approaches for turning neural or related physiological signals into usable commands. The report reviews the underlying neural signals, distinguishes between open- and closed-loop control systems, and examines technologies including scalp-based electrical recording, magnetic and imaging-based methods, and implanted cortical interfaces, with particular attention to bandwidth, response time, signal quality, and practical usability. It concludes that, in the near term, the most practical systems are likely to be noninvasive electrical approaches that draw heavily on muscle and neural signals, while longer-term high-bandwidth control would likely require more advanced invasive interfaces capable of robust two-way communication with individual neurons. The document presents thought-based control of external devices as a research field with plausible assistive and specialized applications, while emphasizing that naturalistic, high-performance control remained constrained by major technical and physiological limits.