Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Implicit Differentiation01:25

Implicit Differentiation

53
In classical mechanics, motion is often described through relationships between spatial coordinates and time. A car moving along a straight highway with constant acceleration serves as a simple case where velocity is an explicit function of time. This scenario results in a linear equation, enabling straightforward analysis using basic differentiation techniques.In contrast, a satellite in circular orbit follows a path defined by an implicit function. The position of the satellite is constrained...
53
Implicit Memories01:24

Implicit Memories

461
Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
461
Implicit Differentiation: Problem Solving01:29

Implicit Differentiation: Problem Solving

57
Curves defined implicitly, where variables cannot be separated algebraically, require specialized techniques for analysis. The conchoid of Nicomedes exemplifies such a case. Its equation links x and y in a way that prevents isolation of one variable, making implicit differentiation essential to determine the slope and behavior at any point on the curve.The implicit form of the conchoid can be expressed as:To differentiate this equation, y is treated as a function of x, and the chain rule is...
57
Second Derivatives of Implicit Functions01:29

Second Derivatives of Implicit Functions

72
Elliptical arches are fundamental in architectural and structural engineering, offering aesthetic appeal and structural efficiency. The shape of an elliptical arch follows a constrained geometric relationship where the height and horizontal position are implicitly related. This means that the height y cannot be explicitly expressed as a function of the horizontal position x, necessitating implicit differentiation for slope and curvature analysis.The equation of an ellipse centered at the origin...
72
Implicit Personality Theories01:23

Implicit Personality Theories

436
Implicit personality theory explains how individuals make assumptions about the relationships between personality traits, behaviors, and character types. When people learn that someone possesses a particular trait, they tend to infer the presence of other related characteristics, forming a cohesive impression. This cognitive shortcut plays a crucial role in social interactions and interpersonal judgments.Central Traits and Their InfluenceSolomon Asch's seminal 1946 study highlighted the power...
436
Natural Selection and Mating Preferences01:06

Natural Selection and Mating Preferences

542
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
542

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Digit-tracking reveals curiosity-driven visual attention in macaque monkeys.

Scientific reports·2026
Same author

A Structurally Dynamic Pathogen-Mimicking Biomaterial Is an Efficient Activator of Dendritic Cells.

ACS materials letters·2026
Same author

Motor activation in cue-guided behavior: Neural evidence from human Pavlovian-to-instrumental transfer (PIT).

NeuroImage·2026
Same author

Building multi-sectoral alliances to co-design and pilot a gender-transformative comprehensive sexuality education intervention for adolescents: the case of Si Yo Fuera Juan in Uruguay.

Reproductive health·2026
Same author

Toward preventive interventions in developmental coordination disorder: in need of early behavioral markers?

Journal of neural transmission (Vienna, Austria : 1996)·2026
Same author

Revisiting our primate roots in infants grooming.

Scientific reports·2026
Same journal

Kat5 deficiency in alveolar type II cells licenses STAT6-driven glycolytic reprogramming and pulmonary fibrosis.

Nature communications·2026
Same journal

Continuous nonthermal slab gap formed by progressive tearing beneath Northeast Asia.

Nature communications·2026
Same journal

Zeolitic isolated protonic acid sites-mediated NH<sub>3</sub> storage for robust NO<sub>x</sub> removal.

Nature communications·2026
Same journal

Coaxially nested component with asymmetric fiber resonant cavity and separation membrane for gaseous and dissolved gases detection.

Nature communications·2026
Same journal

Near-unity charge readout signal in a nonlinear resonator without matching the sensor dissipation.

Nature communications·2026
Same journal

Prokaryotic Schlafen proteins cleave tRNAs during type III CRISPR immunity.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Feb 3, 2026

Organotypic Retinal Explant Cultures from Macaque Monkey
10:32

Organotypic Retinal Explant Cultures from Macaque Monkey

Published on: August 24, 2022

1.7K

Implicit preference for human trustworthy faces in macaque monkeys.

Manuela Costa1, Alice Gomez1, Elodie Barat1

  • 1Institut des Sciences Cognitives Marc Jeannerod, CNRS, UCBL, Lyon 1, 67, boulevard Pinel, 69675, Bron, Cedex, France.

Nature Communications
|October 31, 2018
PubMed
Summary
This summary is machine-generated.

Macaque monkeys, like humans, show preferential attention to trustworthy facial cues. This suggests common primate mechanisms for judging trustworthiness based on facial features like the eye region and width-to-height ratio.

More Related Videos

A Pressure Injection System for Investigating the Neuropharmacology of Information Processing in Awake Behaving Macaque Monkey Cortex
09:46

A Pressure Injection System for Investigating the Neuropharmacology of Information Processing in Awake Behaving Macaque Monkey Cortex

Published on: March 14, 2016

8.7K
Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

8.7K

Related Experiment Videos

Last Updated: Feb 3, 2026

Organotypic Retinal Explant Cultures from Macaque Monkey
10:32

Organotypic Retinal Explant Cultures from Macaque Monkey

Published on: August 24, 2022

1.7K
A Pressure Injection System for Investigating the Neuropharmacology of Information Processing in Awake Behaving Macaque Monkey Cortex
09:46

A Pressure Injection System for Investigating the Neuropharmacology of Information Processing in Awake Behaving Macaque Monkey Cortex

Published on: March 14, 2016

8.7K
Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

8.7K

Area of Science:

  • Comparative psychology
  • Primate behavior
  • Facial perception

Background:

  • Human trustworthiness judgments rely on subtle facial feature processing.
  • It remains unclear if this ability is unique to humans or shared among primates.

Purpose of the Study:

  • To investigate whether macaque monkeys exhibit preferential attention to trustworthiness-associated facial cues in human faces.
  • To explore shared mechanisms for first impressions of trustworthiness across primate species.

Main Methods:

  • Presented computer-generated human faces categorized as trustworthy or untrustworthy to macaques (Macaca Mulatta and Macaca Fascicularis).
  • Analyzed monkeys' looking time and initial saccade patterns (eye movements).
  • Correlated facial width-to-height ratio with looking time.

Main Results:

  • Monkeys looked significantly longer at trustworthy faces compared to untrustworthy ones.
  • Attention shifted towards the eye region for trustworthy faces, indicated by upward saccades.
  • Facial width-to-height ratio correlated with looking time in both monkeys and humans.

Conclusions:

  • Macaque monkeys demonstrate preferential attention to trustworthiness cues in human faces, similar to humans.
  • These findings suggest common primate mechanisms for evaluating trustworthiness based on facial morphology and specific features.