> For the complete documentation index, see [llms.txt](https://newton-metrics.gitbook.io/newtonmetrics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://newton-metrics.gitbook.io/newtonmetrics/modules/cognition.md).
# Cognition
This guide explains the cognitive tests available in the app and how to administer them to patients.
### Reaction Time Test
A simple test measuring basic reaction speed to visual stimuli.
{% embed url="" %}
#### How to Administer
1. Select the number of trials (5-20)
2. Have the patient hold the device comfortably
3. Instruct them to tap the screen as quickly as possible when it changes color
4. The test will show a 3-second countdown before starting
5. Patient should tap the screen immediately when it turns pink
6. Results will show average reaction time and individual trial times
#### What to Look For
* Consistency across trials
* Any significant delays or outliers
* Overall average reaction time
### Dual Task Corsi Block Test
This test assesses spatial working memory and divided attention abilities.
{% embed url="" %}
#### How to Administer
1. Show the patient the three letters at the top of the screen and instruct them to remember them
2. Explain that blocks will light up in a sequence
3. After each sequence, the patient should:
* Tap the blocks in the same order they lit up
* Keep the letters in mind as they'll need to recall them later
4. The sequence gets longer with each successful level
5. Patient gets two attempts per level if they make a mistake
6. At the end, ask them to enter the letters they memorized
#### What to Look For
* Highest level achieved
* Number of errors made
* Whether they correctly remembered the letters
* Response times for each level
### Stroop Test
{% embed url="" %}
This test evaluates executive function and cognitive flexibility by measuring the ability to inhibit automatic responses.
#### How to Administer
1. Select the number of trials (10-100)
2. Explain that color words will appear in different colors
3. Instruct the patient to tap the color square that matches the COLOR of the text, not the word itself
4. Example: If the word "BLUE" appears in red text, they should tap the red square
5. The test begins with a 3-second countdown
6. Patient should respond as quickly and accurately as possible
#### What to Look For
* Overall accuracy percentage
* Difference between congruent times (word matches color) and incongruent times (word differs from color)
* Pattern of errors
* Average reaction time
### Trail Making Test
This test assesses visual attention, task switching, and executive function. It consists of two parts.
#### How to Administer
**Part A**
{% embed url="" %}
1. Explain that they need to connect numbers in order (1-2-3...)
2. Patient should not lift their finger once they start
3. They must connect all numbers as quickly as possible
4. Start with "Start Part A" button
**Part B**
{% embed url="" %}
1. Explain they need to alternate between numbers and letters (1-A-2-B-3-C...)
2. Same rules apply: no lifting finger, connect as quickly as possible
3. Start with "Start Part B" button
#### What to Look For
* Completion time for each part
* Whether time is within expected range
* Difference in performance between Part A and B
* Any difficulties with number/letter sequencing
### General Testing Tips
* Ensure the patient is comfortable and can see the screen clearly
* Give clear instructions and verify understanding before starting
* Minimize distractions in the testing environment
* Let the patient know they can take breaks between tests if needed
* Save results after each test for tracking progress
* Consider fatigue if administering multiple tests in one session
### Understanding Results
* Results are saved in the cognitive tests history
* Compare performance across sessions to track changes
* Look for patterns across different cognitive domains
* Use the data to inform treatment planning and track progress
### Custom Test Creator
This flexible tool allows you to create customized tests for specific cognitive assessments.
{% embed url="" %}
#### Test Elements
You can combine various elements:
* Numbers (0-9)
* Letters (A-Z)
* Colors
* Arrows (different directions)
* Shapes (circle, square, triangle, star)
* Combinations (e.g., colored letters, number-letter pairs)
#### Test Settings
1. Mode Selection:
* Touch Mode: Patient taps screen to advance to next element
* Timed Mode: Elements appear and disappear automatically
2. Timing Options:
* Delay Time: Gap between elements (0.5-15 seconds)
* Display Time: How long each element shows (0.1-15 seconds, Timed Mode only)
* Random Timing: Vary delays and display times within your set ranges
3. Session Setup:
* Countdown: Run test for a specific duration (10-600 seconds)
* Rounds: Set specific number of elements to show (1-100)
#### Administration Tips
* Start with simple combinations before adding complexity
* Use longer delays for older patients or complex elements
* Consider using Touch Mode for initial assessments
* Monitor patient fatigue during longer sessions
---
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