Key evidence & numbers
| Condition | Published mean | What was measured |
|---|---|---|
| Auditory signal | 228.01 ms | Each student's fastest of five attempts |
| Visual signal | 247.60 ms | Each student's fastest of five attempts |
| Difference | 19.59 ms | Subtraction of those two group means |
The values come from Table 1 of the comparative study, rather than from a universal rule about hearing and vision. Selecting the fastest attempt makes the result different from the mean or median of all responses. The participants were first-year medical students, with 60 men and 60 women; that recruitment does not establish norms for children, older adults or gamers. Jain et al., 2015
What happens between the signal and the response?
A simple reaction task asks you to make a known response when a signal appears. It combines detecting the signal, preparing and initiating a movement, and registering that movement. A choice task adds identifying the stimulus and selecting a response. This distinction matters more than whether a website labels the result a reflex: a voluntary button press is not an isolated measure of nerve conduction. Woods et al., 2015 Woods et al., 2015
The classic relationship between response alternatives and reaction time also shows why a sound-detection task and a visual game need not agree. A game may require a choice among actions, whereas the sound test requires only one response. Comparing them cannot isolate a sensory advantage. Hick, 1952
Do age and sex change the comparison?
The student study reported faster male group means, but it cannot tell us how much of that difference reflects selection, experience or other characteristics. Its small exercising subgroups are especially unsuitable for causal conclusions about exercise. The larger Woods studies document age patterns for their visual tasks; they do not supply an auditory-minus-visual adjustment that can be applied to everybody. Jain et al., 2015 Woods et al., 2015 Woods et al., 2015
What affects it?
Equipment can create an apparent sensory difference
An auditory score depends on when sound actually reaches the ear. A visual score depends on when a screen actually changes. The browser's scheduled time, physical presentation and recorded button press are different events. Platform tests show that timing accuracy and variability depend on the browser, operating system, experiment system and hardware. A computer's visual result and a phone's headphone result therefore compare two measurement systems as well as two senses. Anwyl-Irvine et al., 2020 Bridges et al., 2020
This also explains why light travelling faster than sound does not settle the question. In a nearby computer task, stimulus processing and equipment delays are what the experiment must control. The comparative paper measures responses to particular lights and sounds, not responses to distant lightning and thunder. Jain et al., 2015
What can you realistically do?
For an informal comparison, keep the device, response button, instructions and number of attempts consistent, and compare the same summary statistic. Even then, without calibration, you cannot subtract the two scores and call the difference your personal sensory-processing speed. Anwyl-Irvine et al., 2020 Bridges et al., 2020
Repeatability also matters. A robust average experimental effect can coexist with poor reliability for ranking individuals. Sleep loss can change attention and response consistency, so a single session is weak evidence that one sense is unusually slow. These are reasons to interpret the task cautiously, rather than reasons to pursue a particular millisecond target. Hedge et al., 2017 Lim et al., 2010
Try the related free test
Reaction time test
Try the visual reaction time test to explore responding to an unpredictable visual cue. Keep the same input method across runs. It does not include a calibrated auditory comparison, so use the published comparison as context rather than a conversion formula.
Common questions
How much faster is hearing than vision?
There is no fixed personal gap. The student study found a 19.59 ms difference between group means under its fastest-of-five procedure. Other signals and scoring rules can give different differences. Jain et al., 2015
Are headphones suitable for comparing the two?
Audio equipment adds its own presentation pathway. A fair comparison requires measuring or controlling that pathway, not assuming its delay equals the display delay. Anwyl-Irvine et al., 2020
Does a slower visual score mean a vision problem?
This task combines attention, detection, movement and equipment delay. It does not identify the cause of a slow response. Woods et al., 2015
Sources
- Jain et al. (2015). A comparative study of visual and auditory reaction times on the basis of gender and physical activity levels of medical first year students.
- Woods et al. (2015). Factors influencing the latency of simple reaction time.
- Woods et al. (2015). Age-related slowing of response selection and production in a visual choice reaction time task.
- Hick (1952). On the Rate of Gain of Information.
- Anwyl-Irvine et al. (2020). Realistic precision and accuracy of online experiment platforms, web browsers, and devices.
- Bridges et al. (2020). The timing mega-study: comparing a range of experiment generators, both lab-based and online.
- Hedge et al. (2017). The reliability paradox: Why robust cognitive tasks do not produce reliable individual differences.
- Lim et al. (2010). A meta-analysis of the impact of short-term sleep deprivation on cognitive variables..
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