1. INTRODUCTION

Neural Signal Commercialization Prohibition Law concerns the legal regulation and restriction of commercial exploitation of information generated by the human brain and nervous system. Neural signals include electrical, magnetic, and other measurable brain activities collected through electroencephalography (EEG), brain-computer interfaces (BCIs), neural implants, neuroimaging technologies, and wearable neurotechnology devices.

Such information may reveal highly personal characteristics, including attention, emotional responses, cognitive activity, behavioural patterns, and certain health-related information. Commercial exploitation may involve selling neural datasets, targeted advertising, behavioural profiling, employment screening, insurance discrimination, or transferring neural information to third parties without valid consent.

There is currently no single comprehensive international law that prohibits every form of neural signal commercialization. Instead, protection arises through constitutional privacy rights, personal data protection legislation, medical confidentiality, consumer protection, human rights principles, and emerging neurorights legislation.

The central legal objective is to protect mental privacy, cognitive liberty, human dignity, autonomy, and control over personal neural information.

2. INTERNATIONAL LEGAL FRAMEWORK

A. UNIVERSAL DECLARATION OF HUMAN RIGHTS, 1948

Article 12 protects individuals against arbitrary interference with privacy. Although it does not expressly mention neural data, its privacy protections provide an important foundation for regulating invasive collection and commercial exploitation of brain-related information.

B. INTERNATIONAL COVENANT ON CIVIL AND POLITICAL RIGHTS, 1966

Article 17 protects individuals against unlawful or arbitrary interference with privacy. It is relevant to unauthorised collection, processing, disclosure, and commercial transfer of sensitive neural information.

C. EUROPEAN GENERAL DATA PROTECTION REGULATION (GDPR)

The GDPR provides significant protection where neural signals constitute personal data.

Important provisions include:

Article 5: Principles of lawful, fair, and transparent processing.

Article 6: Lawfulness of processing.

Article 9: Special-category personal data, including health-related information.

Article 17: Right to erasure.

Article 22: Certain safeguards concerning automated individual decision-making.

Article 35: Data protection impact assessments.

Commercial processing of neural information must satisfy the applicable legal requirements. Neural information that reveals health or other protected characteristics may receive enhanced protection.

D. UNESCO NEUROTECHNOLOGY ETHICS FRAMEWORK

UNESCO's work on neurotechnology ethics highlights mental privacy, human dignity, autonomy, informed consent, and protection against misuse of neural information. Its recommendations provide an important international ethical and governance reference, although they should not be confused with a universally binding prohibition statute.

3. MAJOR REGULATORY REQUIREMENTS AND PROHIBITIONS

A. PROHIBITION OF UNAUTHORISED COMMERCIALISATION

A regulatory framework should prohibit the sale, licensing, disclosure, or commercial transfer of identifiable neural information without a valid legal basis and appropriate safeguards.

B. INFORMED CONSENT

Individuals should receive clear information concerning:

What neural signals are collected.

The purpose of collection.

Whether information will be commercially used.

Which third parties may receive the information.

How long information will be retained.

How consent may be withdrawn.

Consent to use a neurotechnology device should not automatically constitute consent to sell its collected data.

C. RESTRICTIONS ON NEURAL ADVERTISING

Commercial entities should not use neural information to manipulate consumers through undisclosed cognitive or emotional profiling. Particularly sensitive practices, including exploitative targeting of vulnerable individuals, should be subject to strict legal restrictions.

D. EMPLOYMENT AND INSURANCE PROTECTION

Employers and insurers should not use neural data to make discriminatory decisions about individuals' employability, productivity, insurability, or perceived cognitive capabilities without a lawful and proportionate justification.

E. DATA SECURITY AND ACCOUNTABILITY

Companies processing neural information should implement encryption, access controls, retention limits, independent audits, breach reporting, and appropriate deletion procedures.

4. IMPORTANT CASE LAWS AND JUDICIAL DECISIONS

1. Katz v. United States, 389 U.S. 347 (1967)

Authority: Analogous constitutional authority.

The US Supreme Court established the importance of reasonable expectations of privacy. Its reasoning supports protection against intrusive collection of private neural information.

2. Whalen v. Roe, 429 U.S. 589 (1977)

Authority: Analogous privacy authority.

The Court recognised important privacy interests concerning personal information held by government institutions. The judgment is relevant to confidentiality and controlled disclosure of sensitive neural datasets.

3. Carpenter v. United States, 585 U.S. 296 (2018)

Authority: Analogous digital privacy authority.

The Court recognised that extensive historical location information can reveal highly private details of an individual's life. Its reasoning is relevant to neural datasets capable of revealing intimate patterns of mental and behavioural activity.

4. Sorrell v. IMS Health Inc., 564 U.S. 552 (2011)

Authority: Directly relevant commercial-data authority.

The Court invalidated a Vermont restriction on the sale, disclosure, and use of certain prescriber-identifying information for pharmaceutical marketing because of its First Amendment implications. The case demonstrates that commercial data restrictions must be carefully designed to comply with constitutional protections.

5. Riley v. California, 573 U.S. 373 (2014)

Authority: Analogous digital privacy authority.

The Supreme Court recognised the extensive personal information contained in mobile phones and generally required a warrant for their search following arrest. Its reasoning supports heightened safeguards for technologies containing intimate personal information.

6. Washington v. Harper, 494 U.S. 210 (1990)

Authority: Analogous bodily and mental autonomy authority.

The Court recognised a significant liberty interest in avoiding unwanted administration of antipsychotic medication. The judgment is relevant to discussions concerning bodily autonomy and invasive neurotechnology interventions.

7. Selvi v. State of Karnataka, (2010) 7 SCC 263

Authority: Directly relevant Indian constitutional authority.

The Supreme Court of India held that involuntary narcoanalysis, polygraph examinations, and brain electrical activation profile tests violate constitutional protections against testimonial compulsion and personal liberty in the circumstances considered. The judgment is particularly important for protecting mental privacy and autonomy against non-consensual neurological testing.

5. IMPORTANT ADDITIONAL JUDICIAL DEVELOPMENT

8. Girardi v. Emotiv Inc., Supreme Court of Chile, 9 August 2023

Authority: Direct neural-data privacy authority.

The Chilean Supreme Court considered a constitutional protection action concerning the Emotiv Insight neurotechnology headset, which collected information about brain activity. The Court addressed mental privacy, personal data protection, and the need for safeguards concerning neurodata. The decision is particularly significant because it directly concerns commercial neurotechnology and the protection of neural information.

PMC

6. EMERGING NATIONAL LEGISLATION

Colorado, HB 24-1058 (2024): Expressly includes neural data within protected biological data and strengthens consent requirements for processing sensitive information.

Colorado General Assembly

California, SB 1223 (2024): Expands the definition of sensitive personal information under the California Consumer Privacy Act to include neural data.

Montana, SB 163 (2025): Extends genetic-information privacy protections to neurotechnology-related data.

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India: The Digital Personal Data Protection Act, 2023, provides a general framework for processing digital personal data, potentially covering identifiable neural information. It does not establish a separate, comprehensive prohibition on neural-data commercialization.

7. CONCLUSION

Neural Signal Commercialization Prohibition Law is an emerging field of privacy, constitutional, human-rights, and technology regulation. Its fundamental purpose is to prevent the exploitation of human neural information without adequate legal protection.

The decisions in Selvi, Girardi, Carpenter, Riley, and Sorrell provide important judicial principles concerning mental privacy, informational autonomy, constitutional liberty, and commercial data use.

An effective legal framework should prohibit unauthorised commercial sale of identifiable neural information, require meaningful informed consent, restrict manipulative advertising and discriminatory profiling, establish strict cybersecurity obligations, and provide remedies for unlawful disclosure.

Ultimately, neural information should receive protection appropriate to its unusually intimate relationship with human identity, mental autonomy, dignity, and personal freedom.