HRfunc

Experiment Contexts

Below you will find the recommended standard naming of various experimental contexts within the HRtree. Please use these naming schemes when uploading HRFs to the HRtree to ensure ease of access. The list below is intended to be as exhaustive as possible, however experiment contexts may be missing.

Tasks
Task
Standard Name
Description
Flanker
flanker
A classic response inhibition task with congruent/incongruent flankers.
Go No-Go
go/no-go
Response inhibition task involving go and no-go signals.
N Back
n_back
Working memory task with varying load (0-back, 1-back, 2-back).
Stroop
stroop
Color-word interference task used to assess cognitive flexibility.
Oddball
oddball
Task used to elicit event-related potentials for rare vs. frequent stimuli.
Posner
posner
Attention task examining cue validity and spatial orientation.
Stop-Signal Task
sst
Measures response inhibition using a stop signal after go cue.
Visual Evoked Potential
vep
Visual stimulus presentation to measure evoked potentials.
Auditory Evoked Potential
aep
Auditory stimulus presentation to measure evoked potentials.
Reward Prediction Task
rpt
Task assessing prediction and response to reward signals.
Emotion Recognition
emotion_recognition
Participants identify emotional expressions from faces.
Conditions
Condition
Standard Name
Description
Directional
directional
A trial condition, common in Flanker tasks, where primary stimuli are flanked by extrenal stimuli point in a certain direction.
Congruent
congruent
A condition in which primary stimluli and flanking stimuli are pointing the same direction.
Incongruent
incongruent
A condition in which primary stimuli and flanking stimuli are point different directions.
Stimuli
Stimuli
Standard Name
Description
Arrows
arrows
Arrows pointing a direction.
Color
color
Presented colors.
Touch
touch
Being held or touched by a person or object.
Sound
sound
Auditory noise.
Pain
pain
Nociception or sensations of pain.
Aliens
aliens
Alien figures.
Stimulus Medium
Stimuli Medium
Standard Name
Description
Computer Monitor
monitor
A monitor attached to a computer displaying pixelated stimuli on a screen.
Human
human
A human interacting with the research subject as the experimental stimuli.
AI
ai
An artificial intelligence (AI) ineracting with the research subject.
Puzzle
puzzle
A puzzle completed by the research subject.
Chess
chess
A classic chess board and pieces used played by the subject.
Diplay cards
display_card
A larger card used to display stimuli such as a Rorschach test.
Stimulus Intensity

Intensities should be reported as normalized values that describe how strong the stimulus was relative to your maximum setting. We recommend using decimals between 0.0 and 1.0 so the HRtree can compare studies consistently. A few common examples:

  • 0.0 – Stimulus was absent (e.g., baseline or control condition).
  • 0.5 – Stimulus delivered at 50% of the maximum intensity available.
  • 1.0 – Stimulus delivered at full intensity.

If your paradigm uses a different scaling (e.g., raw lux, dB, or Newtons), please convert to a normalized decimal where possible and document the mapping in your submission notes.

Protocols
Protocol
Standard Name
Description
Gooble
gooble
A modified version of the Flanker task developed by Dr. Perlman and Dr. Pérez-Edgar and used for development and evaluation of the HRfunc tool.
Demographics
Demographics
Standard Name
Description
Female
female
Individuals who identify as female.
Male
male
Individuals who identify as male.
Cisgender female
cis-female
Individuals whose gender identity is female and sex assigned at birth is also female.
Cisgender male
cis-male
Individuals whose gender identity is male and sex assigned at birth is also male.
Transgender female
trans-female
Individuals who identify as female but were assigned male at birth.
Transgender male
trans-male
Individuals who identify as male but were assigned female at birth.
Nonbinary
nonbinary
Individuals who do not identify exclusively as male or female.
Agender
agender
Individuals who do not identify with any gender.
Genderqueer
genderqueer
Individuals who reject conventional gender distinctions.
Two-Spirit
two-spirit
Indigenous people who embody both masculine and feminine spirits.
Straight
straight
Individuals primarily attracted to a different gender.
Gay
gay
Men primarily attracted to men.
Lesbian
lesbian
Women primarily attracted to women.
Bisexual
bisexual
Individuals attracted to more than one gender.
Pansexual
pansexual
Individuals attracted to others regardless of gender identity.
Asexual
asexual
Individuals who experience little or no sexual attraction.
Queer
queer
A broad term for non-heteronormative sexual orientations.
Asian
asian
Individuals of East, Southeast, or South Asian descent.
East Asian
east_asian
Individuals of Chinese, Korean, Japanese, or Mongolian descent.
South Asian
south_asian
Individuals of Indian, Pakistani, Bangladeshi, Sri Lankan, or Nepali descent.
Southeast Asian
southeast_asian
Individuals of Vietnamese, Thai, Filipino, Indonesian, or Malaysian descent.
Native American
native_american
Indigenous peoples from the U.S. mainland.
Native Hawaiian
native_hawaiian
Indigenous peoples of Hawaii.
Pacific Islander
pacific_islander
Peoples from Oceania including Samoa, Fiji, and Guam.
Black
black
Individuals of African or Afro-Caribbean descent.
Afro-Caribbean
afro_caribbean
Individuals of African descent from the Caribbean.
White
white
Individuals of European descent.
Latino/Latina
latine
Individuals of Latin American descent who identify as male or female.
Latinx
latinx
Gender-neutral term for individuals of Latin American descent.
Hispanic
hispanic
Individuals from Spanish-speaking countries, often overlapping with Latin American identity.
Middle Eastern
middle_eastern
Individuals of Middle Eastern descent (e.g., Arab, Persian, Kurdish).
North African
north_african
Individuals from North African countries (e.g., Egypt, Morocco, Algeria).
Multiracial
multi_racial
Individuals identifying with two or more racial groups.
Disability
disability
Participants who identify as having a disability (physical, cognitive, or sensory).
Neurodivergent
neurodivergent
Participants with autism, ADHD, dyslexia, or other neurological differences.
Monolingual
monolingual
Speaks only one language fluently.
Bilingual
bilingual
Speaks two languages fluently.
Multilingual
multilingual
Speaks more than two languages fluently.
Low SES
low_ses
Participants from low socioeconomic backgrounds.
Middle SES
middle_ses
Participants from middle socioeconomic backgrounds.
High SES
high_ses
Participants from high socioeconomic backgrounds.
High School
education_high_school
Participants whose highest education level is high school or equivalent.
College Graduate
education_college
Participants who have completed an undergraduate degree.
Postgraduate
education_postgrad
Participants with a graduate or professional degree.
Health Status
Health Status
Standard Name
Description
Not Tested
untested
The dataset didn't examine health status.
Healthy
healthy
No reported physical or mental health concerns.
Depression
depression
Persistent sadness, loss of interest, or mood-related difficulties.
Anxiety
anxiety
Ongoing worry, tension, or panic symptoms.
Bipolar Disorder
bipolar_disorder
Episodes of depression and elevated or irritable mood.
Psychotic Disorder
psychosis
Symptoms involving hallucinations, delusions, or disorganized thought.
ADHD
adhd
Attention deficit and/or hyperactivity symptoms affecting focus and impulse control.
Autism Spectrum Disorder
asd
Neurodevelopmental condition affecting communication and social behavior.
Epilepsy
epilepsy
Seizure disorder affecting brain activity.
Parkinson’s Disease
parkinsons
Progressive neurodegenerative disorder affecting movement control, caused by loss of dopamine-producing neurons in the brain.
Alzheimer’s Disease
alzheimers
Progressive neurodegenerative disorder causing memory loss, cognitive decline, and behavioral changes due to accumulation of amyloid plaques and tau tangles in the brain.
Neurodegenerative Disorder
neurodegenerative
Conditions such as Parkinson’s or Alzheimer’s disease.
Multiple systems atrophy
multiple-systems-atrophy
Rare neurodegenerative disorder affecting movement, balance, and autonomic functions such as blood pressure.
Cancer
cancer
Current or past diagnosis of any form of cancer.
Cardiovascular Disease
cardiovascular
Includes heart disease, hypertension, or stroke.
Metabolic Disorder
metabolic
Includes diabetes, thyroid disorders, or hormonal conditions.
Chronic Pain
chronic_pain
Long-term pain not limited to acute injury or illness.
Sleep Disorder
sleep_disorder
Includes insomnia, apnea, or irregular sleep patterns.
Substance Use Disorder
substance_use
Alcohol or drug-related dependency or misuse.