Are Workplace Communication Tools Leaving Neurodivergent Employees Behind?
As organizations invest heavily in collaboration platforms, a growing question is emerging: who were these tools actually designed for? Slack, Microsoft Teams, and similar platforms were built to make communication faster, more visible, and more responsive. But for many employees with ADHD, autism, and dyslexia, the same design choices can increase cognitive load, disrupt focus, and create barriers that traditional accessibility initiatives rarely address.
In 2023, a Georgia Tech HCI researcher noticed a pattern. Some of the strongest contributors on her team were visibly struggling with Slack. Working with a senior accessibility expert, she traced the issue back to the platform’s baseline expectation of constant ambient availability. The notification flow. The unthreaded channel structure. Individually, none of it appeared catastrophic. Across an entire workday, however, the cognitive strain compounded significantly.
That finding did not produce a product update. It became a semester-long research project instead.
Built for one brain, deployed for all
Slack, Microsoft Teams, and their async alternatives share a common design philosophy: make communication frictionless. Reduce the barriers to messaging. Surface everything instantly.
The assumption behind that philosophy is that users benefit from being reachable, aware of channel activity, and constantly responsive. For neurotypical workers, that assumption often holds. For employees with ADHD, autism, or dyslexia, it can invert entirely.
Research published in 2025 on ADHD-affected professionals described what “frictionless communication” produces at the cognitive level: time blindness, emotional reactivity, fragmented task management, and executive dysfunction.
UC Irvine’s Gloria Mark found that it takes an average of 23 minutes and 15 seconds to fully return to a task after a digital interruption. When interruptions occur, workers typically complete two additional tasks before returning to the original one.
For an ADHD brain, the problem is not simply the time lost. It is the executive function required to restart the original task, reload the context, and suppress the new distraction still visible in the sidebar. Repeated throughout a workday, that overhead accumulates into something that resembles underperformance rather than an accessibility issue.
The platforms did not set out to harm neurodivergent employees. They were designed to optimise engagement metrics, message volume, and response speed. Neurodivergent cognitive profiles were simply not part of the design brief.
When workplace communication becomes a barrier
Roughly 15–20% of the global population is neurodivergent. In most organizations, that translates to several people on every team, many of them unidentified, undiagnosed, or masking their struggles until burnout surfaces later.
The City & Guilds Neurodiversity Index 2025 found that 41% of neurodivergent employees experience workplace barriers daily, while nearly one in three reported dissatisfactions with workplace accommodations. Those figures suggest the challenge extends beyond formal policies and into the tools employees use every day.
The organization that has not yet faced legal action is not necessarily succeeding. It may simply not have been challenged yet.
The notification is the product
Collaboration platforms are not neutral infrastructure. They are products built around engagement incentives, with engagement measured by daily active users and message volume.
Slack reportedly reached 47.2 million daily active users in 2025, with more than 1.5 billion messages sent every day. That scale exists partly because the default platform settings create an environment where delayed responses feel socially visible.
The challenge is not simply the number of messages employees receive. It is the accumulation of micro-interruptions. Features designed to increase engagement can also increase task-switching, context loss, and cognitive fatigue. For neurodivergent employees, the result is often less about communication volume and more about the mental effort required to continuously manage it.
For autistic employees, the unspoken expectations embedded in these systems mirror the kind of “hidden curriculum” that Stanford Neurodiversity Project director Lawrence Fung has described as particularly exhausting. Many autistic workers already expend significant mental energy navigating implicit workplace expectations that neurotypical colleagues process automatically. An always-on messaging environment continuously amplifies that cognitive overhead throughout the day.
For dyslexic employees, rapid-fire Slack channels create a communication structure heavily dependent on fast-moving written text, compressed formatting, and fragmented visual hierarchy. The platforms offer limited reading customisation, little message-level accessibility control, and few tools for managing information at an adaptable pace.
These challenges are not unique to Slack. Teams and many other collaboration platforms rely on similar real-time communication structures.
Why accommodations alone cannot solve a design problem
Many organizations attempt to address communication challenges through accommodations. While those measures are often valuable, researchers increasingly argue that workplace tools themselves deserve closer scrutiny.
A 2025 systematic review examining workplace accommodations for autistic employees reached a different conclusion. Individually tailored support, revisited consistently over time and maintained through active supervisory engagement, produced the strongest outcomes for retention and job satisfaction.
The standard one-time HR disclosure model often achieves the opposite.
What consistently improves outcomes tends to fall into several practical categories:
- Async-first norms as team policy, not personal preference. When organizations shift expectations away from an immediate response culture, the cognitive load of managing availability drops significantly, especially for employees with ADHD.
- Notification defaults configured at the organizational level. Batched notifications and Do Not Disturb settings exist across major platforms. They become effective when implemented as defaults rather than individual opt-ins.
- Written meeting summaries structured with headings and action items. Not transcripts. Documents that dyslexic and ADHD employees can quickly scan, revisit, and act upon without reconstructing conversations from memory.
- Focus-time status indicators without disclosure requirements. When employees must explain medical conditions to justify uninterrupted work time, many simply avoid using the feature entirely. When focus-time becomes standard team behaviour, the social permission already exists.
| Accommodation | What it addresses | What employers often get wrong |
|---|---|---|
| Async-first communication norms | Removes implicit response-time pressure | Treating async communication as a technology feature instead of a team expectation |
| Notification batching and DND defaults | Reduces executive function interruption costs | Leaving accessibility settings as individual opt-ins |
| Structured meeting summaries | Supports dyslexic and ADHD processing | Producing dense, unstructured recap documents |
| Focus-time status indicators | Creates social permission for deep work | Requiring formal disclosure before employees can use them |
Organizations implementing these changes are not simply running accessibility initiatives. In many cases, they are building healthier workplaces that happen to better support the 15–20% of employees whose cognitive profiles traditional collaboration software ignored.
Distilled
The City & Guilds 2025 Index surveyed 1,385 employees across 335 employers and found that 41% of neurodivergent respondents experienced workplace barriers daily. At the same time, 57% of senior leaders had received no training on including neurodiversity in workplace training, while 13% of employers had already faced employment tribunals related to neurodiversity concerns.
Slack, Teams, and similar workplace communication platforms were designed to maximize visibility, responsiveness, and engagement. Those goals are not inherently incompatible with accessibility, but they often assume that employees can comfortably manage constant notifications, rapid context switching, and high volumes of written communication.
As organizations expand conversations around neurodiversity in workplace inclusion, the question may be less about how individuals adapt to workplace tools, and more about how workplace tools adapt to different ways of thinking and working.
