**Consensus legend:**

**Medium** = supportive review / meta-analytic evidence, but still heterogeneous or not fully standardized

**Emerging-Medium** = clearly promising, with encouraging controlled data, but not yet mature enough for a flagship claim

**Medium-Low** = some positive meta-analytic signal, but effect durability / protocol consistency remains weak

**Mixed / Low** = conflicting or weak evidence, especially when stricter controls or blinded outcomes are used

**Low / Negative** = recent syntheses do not support meaningful added benefit over controls

| Specific Neural Marker / Target | Sensing / Stimulation Modality | Recording Channels / Stimulation Sites | Athletic Benefit | Types of Sport | Scientific Consensus | Associated References |

|---|---|---|---|---|---|---|

| **Primary Motor Cortex (M1) Excitability** | **Neuromodulation**<br>(Anodal tDCS) | **Anode over M1** (**C3, C4, or Cz** for leg area); Cathode contralateral | Delays central neuromuscular fatigue; increases muscular endurance, isometric strength, and time-to-task failure. | Endurance (Cycling, Swimming) and Strength sports | **Medium-High**. Repeated meta-analytic support shows small-to-moderate gains in athletic performance, especially endurance-related outcomes, with parallel evidence for reduced RPE. | Angius et al., 2016<br>Vitor-Costa et al., 2015<br>Cogiamanian et al., 2007 |

| **Dorsolateral Prefrontal Cortex (DLPFC)** | **Neuromodulation**<br>(Anodal tDCS / rTMS) | **Anode over Left DLPFC**; Cathode typically over contralateral supraorbital area (**Fp2**) | Reduces Rating of Perceived Exertion (RPE); counteracts acute mental fatigue; enhances tactical decision-making. | Endurance sports, Swimming, Team sports | **Medium**. PFC-targeted a-tDCS shows positive subgroup effects and reduced RPE, but the sports evidence is driven mostly by tDCS. Direct rTMS evidence in athletes is promising but still sparse. | Lattari et al., 2016/2020<br>Moscatelli et al., 2023 |

| **Spinal Interneuron + Motor Cortex** | **Dual-Mode Neuromodulation**<br>(tDCS + tsDCS) | **Brain:** Anode over **Cz**<br>**Spine:** Cathode over **T12-L2** | Enhances explosive power and lower limb performance; quickens reaction times by lowering spinal reflex thresholds. | Martial arts (Taekwondo, Boxing), Sprinting, Jumping | **Emerging**. The concept is compelling and there are positive small studies in boxers and spinal stimulation work on fatigue resistance and jumping, but this row is not yet backed by broad sport-specific synthesis or standardized protocols. | Kamali et al., 2022<br>Berry et al., 2017<br>Bocci et al., 2015 |

| **Cortical Oscillations**<br>(Alpha / Beta / Gamma) | **Neuromodulation**<br>(tACS / tRNS) | **Left Primary Motor Cortex (M1)** (frequency-matched) | Accelerates motor sequence learning; enhances neuroplasticity and early skill acquisition when used concurrently with training. | Highly technical skill acquisition (Gymnastics, swing mechanics) | **Medium for tACS; Emerging for tRNS**. Meta-analysis supports tACS for motor performance and motor learning in healthy adults, but sport-specific transfer remains thinner. tRNS is promising but less mature. | Pollok et al., 2015<br>Sugata et al., 2018<br>Antal et al., 2008 |

| **Cerebral Hemodynamics & Metabolism**<br>(Cytochrome-c-oxidase) | **Photic Stimulation / Photobiomodulation**<br>(TILS, 1064 nm infrared laser) | **Forehead** (Targeting the prefrontal cortex) | Augments working memory, sustained attention, and executive function; delays cognitive fatigue without side effects. | Tactical and decision-heavy sports (Basketball, AFL, American Football, eSports) | **Medium for general cognition; Emerging for direct athletic transfer**. Reviews are broadly positive for cognition, but direct sport-performance evidence is still limited. | O'Connor et al., 2025<br>Barrett & Gonzalez-Lima, 2013<br>Wang et al., 2017 |

| **Occipital Alpha Oscillations & Visual Stream** | **Visual Disruption**<br>(Stroboscopic Visual Training, 4–15 Hz) | **Visual field** (Liquid-crystal stroboscopic eyewear) | Forces sensory reweighting; improves perceptual ability, information processing speed, reaction time, and reactive agility. | Open-skill / interceptive sports (Volleyball, Tennis, Soccer, Baseball, AFL, Badminton) | **Medium-High**. Recent meta-analyses support small-to-moderate overall sport-performance benefits and significant reaction-time gains. | Wang et al., 2025<br>Guo et al., 2025<br>Zwierko et al., 2023/2024 |

| **Autonomic Nervous System & Auditory-Motor Pathway** | **Auditory Stimulation**<br>(Targeted acoustics / Musical entrainment) | **Auditory cortex** (Headphones / Earbuds) | Mitigates mental fatigue during continuous tasks; improves pacing, movement cadence, and helps down-regulate pre-competition stress. | Endurance sports (Running, Cycling), Dance, Gymnastics | **Medium for music-based fatigue / pacing effects; Emerging for precise entrainment claims**. Evidence is stronger for music as an ergogenic or fatigue-management aid than for tightly specified auditory neuromodulation. | Takabatake et al., 2021<br>Guo et al., 2015<br>Simpson & Karageorghis, 2006 |

| **Somatosensory / Proprioceptive Pathways** | **Stochastic Resonance (SR) / Haptics** | **Appendages:** Lateral aspect of the **ankles** or **wrists** | Enhances body awareness and limb coordination; normalizes cutaneous reflexes and joint stability. | Racket sports, Rehabilitation (Chronic Ankle Instability), AFL | **Emerging for athletic enhancement; Medium for rehabilitation / ankle instability**. There is stronger support in rehab than in direct sports-performance enhancement. | Friedman & Madsen, 2025<br>Ren et al., 2025 |

| Stimulus Type | Neural Mechanism Targeted | Cognitive / Wellbeing Benefit | Best-Fit Use Case | Consensus Level | Safety Red Lines | Associated References |

|---|---|---|---|---|---|---|

| **Circadian-Informed Bright / Blue-Enriched Light Exposure** | **Melanopsin / ipRGC-driven alerting and circadian systems**<br>Acute arousal regulation, melatonin suppression, circadian phase shifting | Improves alertness, sustained attention, reaction speed, daytime energy, and general wellbeing; can also improve sleep timing when used in the **morning / daytime** | Focus, cognitive energy, shift-work support, daytime fatigue, mood regulation, sleep schedule alignment | **Medium-High** | Avoid **late evening / nighttime** use if the goal is sleep; use caution in **bipolar disorder / hypomania risk**; avoid intense light if it provokes headaches, photophobia, or ocular discomfort | Mu et al., 2022<br>Landvreugd et al., 2024<br>Charkhabi et al., 2025<br>Zhao et al., 2025 |

| **Preferred or Structured Music Stimulation** | **Reward circuitry, arousal regulation, autonomic modulation, rhythmic entrainment** | Reduces subjective mental fatigue, supports emotional regulation, improves task engagement, and can help maintain cognitive performance under fatigue | Stress regulation, mental-fatigue management, work blocks, study sessions, emotional down-regulation, pre-task state setting | **Medium** | Avoid excessively loud playback; watch for **over-arousal** with highly stimulating music when the goal is calm focus or sleep; not ideal as a sole intervention for significant anxiety or insomnia | Ding et al., 2025<br>Chee et al., 2024<br>Elnazer, 2026 |

| **Closed-Loop Acoustic Sleep Stimulation / Pink-Noise Pulses** | **Slow-wave enhancement, spindle coupling, sleep-dependent memory consolidation** | May improve insomnia symptoms, deepen slow-wave-related sleep processes, and support overnight memory consolidation, especially under well-timed stimulation protocols | Sleep quality, memory consolidation, next-day cognitive freshness, sleep-support products | **Medium for sleep**<br>**Emerging for memory** | Do not assume that **all-night ambient noise** is equivalent to phase-targeted stimulation; avoid loud overnight playback; mixed evidence means this should be framed as a sleep-support tool, not a guaranteed memory enhancer | Capezuti et al., 2022<br>Stanyer et al., 2022<br>Wang et al., 2025 |

| **Audiovisual Entrainment (AVE)**<br>**Photic + Auditory Pulses** | **Rhythmic sensory driving / oscillatory state induction**<br>Alpha-theta state shaping, acute mood-state shifting | Can acutely reduce anxiety/tension, improve mood, support meditation entry, and may modestly improve mood-sensitive cognitive performance | Meditation support, emotional regulation, rapid state shifts, stress-reset sessions, burnout-recovery UX | **Emerging-Medium** | **Contraindicated or caution** in photosensitive epilepsy, visually induced seizure risk, strong migraine / photophobia, or discomfort with flicker; start with short exposures and conservative intensity | Johnson et al., 2024<br>Rahmani et al., 2025 |

| **Binaural Beats / Auditory Beat Stimulation** | **Proposed auditory entrainment / frequency-following effects** | Possible benefits for relaxation, sleep onset, anxiety reduction, and attentional state-setting, but results are inconsistent and mechanism claims are often overstated | Relaxation, light stress management, meditation priming, low-friction consumer wellness audio | **Emerging / Mixed** | Keep volume moderate; do not market as proven “brainwave syncing”; not a substitute for treatment of anxiety, insomnia, or cognitive impairment; discontinue if it causes irritation, headache, or agitation | Ingendoh, 2023<br>Elnazer, 2026<br>Platt, 2025 |

| **Transcranial Photobiomodulation (tPBM / TILS)**<br>**Red / Near-Infrared Light** | **Cytochrome-c-oxidase activation, mitochondrial metabolism, cerebral blood flow / oxygenation** | Promising for working memory, sustained attention, executive function, and cognitive energy; plausible mental-fatigue reduction | High-end cognition products, deep-work priming, executive function support, cognitive recovery | **Medium** | Protect the **eyes**; consumer devices should not encourage unsafe direct retinal exposure or improvised laser use; evidence is promising but still heterogeneous, so avoid overclaiming | Salehpour et al., 2019<br>Lee et al., 2023<br>Zhu et al., 2025 |

| **Morning Bright Light Therapy for Mood / Sleep Regulation** | **Circadian phase alignment plus mood-linked light effects** | Helps sleep-wake regularity, morning alertness, mood, and daytime functioning, especially in people with circadian drift or low morning energy | Sleep regulation, winter low mood, daytime grogginess, circadian wellbeing programs | **Medium-High** | Best delivered with timing guidance; use caution in **bipolar-spectrum users** because of hypomania switch risk; avoid replacing psychiatric care with consumer light products alone | Zhao et al., 2025<br>Geoffroy et al., 2025 |

| Clinical Indication | Modality / Target | Wearable Form Factor | Typical Sites / Setup | Intended Clinical Benefit | Scientific Consensus | Associated References |

|---|---|---|---|---|---|---|

| **Major Depressive Disorder** | **tDCS targeting left DLPFC** | Headset / home-supervised device | **Anode over F3 / left DLPFC**, cathode over right supraorbital or F4-style montage depending protocol | Reduce depressive symptoms; scalable clinic-to-home treatment pathway | **Medium** | Ren et al., 2025<br>Razza et al., 2025<br>Moshfeghinia et al., 2025<br>TGA ARTG entry, 2025 |

| **Depression / Anxiety Adjunct** | **taVNS** | Ear-clip stimulator | Auricular branch of vagus nerve, typically cymba conchae / concha | Reduce depressive and anxiety symptoms; support autonomic regulation | **Emerging-Medium** | Jackowska et al., 2025<br>Gerges et al., 2024<br>Austelle et al., 2025 |

| **PTSD / Anxiety Disorders** | **tDCS over prefrontal targets** | Headset | Typically DLPFC-based montages | Reduce disorder-specific symptoms, anxiety burden, and comorbid depression | **Medium-Low** | Xie et al., 2024<br>Tseng et al., 2024 |

| **Insomnia** | **taVNS** | Ear-clip stimulator | Auricular stimulation during repeated treatment sessions | Improve PSQI / ISI scores and non-drug sleep outcomes | **Medium** | Zhang et al., 2024<br>de Oliveira et al., 2025 |

| **Insomnia** | **Acoustic sleep stimulation / pink-noise or auditory stimulation** | Headphones, earbuds, or bedside audio device | Timed auditory stimulation during sleep | Improve insomnia severity and sleep quality; low-friction behavioral-tech adjunct | **Medium** | Wang et al., 2025 |

| **Autism Spectrum Disorder** | **tDCS** | Headset | Best-supported montage in NMA: **anodal left DLPFC with extracephalic cathode** | Improve overall autistic symptoms and some regulatory / behavioral domains | **Medium** | Chen et al., 2024<br>Kang et al., 2024 |

| **Autism Spectrum Disorder** | **tPCS** | Headset | **Prefrontal-cerebellar pulsed current stimulation** | Improve social functioning and sleep in pediatric ASD | **Emerging-Medium** | Liu et al., 2025 |

| **Autism Spectrum Disorder** | **tPBM / near-infrared photobiomodulation** | Light-emitting headband / helmet | Prefrontal and related scalp targets, e.g. 850 nm / protocol-specific pulsing | Improve ASD symptom burden; attractive productizable home-use format | **Emerging-Medium** | Fradkin et al., 2024<br>Fradkin et al., 2025 |

| **ADHD** | **eTNS / external trigeminal nerve stimulation** | Forehead patch device used during sleep | Trigeminal stimulation during nightly sessions | Intended ADHD symptom reduction without medication | **Mixed-to-Negative** | FDA Monarch clearance, 2019<br>Conti et al., 2026 |

| **Tinnitus** | **Bimodal sound + tongue stimulation** | Headphones plus tongue electrode array | Coordinated sound stimulation with lingual electrical pulses | Reduce tinnitus severity and distress | **Medium** | Boedts et al., 2024<br>Kasper et al., 2025 |

| **MCI / Early Dementia** | **tDCS** | Headset | Usually left dlPFC or temporoparietal targets | Improve global cognition; some evidence for attention / working memory support | **Medium** | Prathum et al., 2025<br>Hou et al., 2024 |

| **MCI / Early Dementia** | **tPBM / red or near-infrared photobiomodulation** | Light-emitting headband / helmet | Forehead / prefrontal light delivery | Improve global cognition, working memory, and executive function | **Emerging-Medium** | Zhu et al., 2025<br>Jarrahi et al., 2025 |

| **MCI / Alzheimer’s Disease** | **40 Hz auditory / audiovisual gamma sensory stimulation** | Headphones, glasses, or integrated AV device | Repeated 40 Hz sensory entrainment sessions | Potentially support brain-network engagement and cognition, but efficacy still unsettled | **Emerging** | Ang et al., 2025<br>Bolland et al., 2025 |