Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Inertial Frames of Reference

Inertial Frames of Reference

Newton’s first law is usually considered to be a statement about reference frames. It provides a method for identifying a special type of reference frame: the inertial reference frame. In principle, we can make the net force on a body zero. If its velocity relative to a given frame is constant, then that frame is said to be inertial. So, by definition, an inertial reference frame is a reference frame where Newton's first law holds valid. Newton's first law applies to objects with...

Non-inertial Frames of Reference

Non-inertial Frames of Reference

A reference frame accelerating or decelerating relative to an inertial frame is a non-inertial frame. To help understand this, consider what taking off in an airplane, turning a corner in a car, riding a merry-go-round, and the circular motion of a tropical cyclone all have in common. All these systems are accelerating, decelerating, or rotating relative to the Earth; hence, they all are non-inertial frames. All these systems exhibit inertial forces, which merely seem to arise from motion,...

Framing Effects

Framing Effects

Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...

The Representativeness Heuristic

The Representativeness Heuristic

The representative heuristic describes a biased way of thinking, in which you unintentionally stereotype someone or something. For example, you may assume that your professors spend their free time reading books and engaging in intellectual conversation, because the idea of them spending their time playing volleyball or visiting an amusement park does not fit in with your stereotypes of professors.

Frames

Frames

Frames are essential components of various mechanical and structural systems used daily. These structures are known for their stability and ability to bear heavy loads. A frame is constructed using two-force and multi-force members, interconnected using pin joints. In contrast, trusses are made entirely of two-force members.
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...

Frames: Problem Solving II

Frames: Problem Solving II

Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.

You might also read

Related Articles

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

Sort by

Same author

Neural representations of beliefs in a multi-dimensional inference task.

bioRxiv : the preprint server for biology·2026

Same author

The Primate Hippocampus Constructs a Temporal Scaffold Anchored to Behavioral Events.

bioRxiv : the preprint server for biology·2025

Same author

Visual Exploration and the Primate Hippocampal Formation.

Hippocampus·2024

Same author

Parallel patterns of cognitive aging in marmosets and macaques.

bioRxiv : the preprint server for biology·2024

Same author

A Comparison of Rapid Rule-Learning Strategies in Humans and Monkeys.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2024

Same author

Schema formation in a neural population subspace underlies learning-to-learn in flexible sensorimotor problem-solving.

Nature neuroscience·2023

Same journal

Vestibular function drives gaze stability in locomoting macaques.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

Same journal

Region- and layer-specific glutamatergic synapse development in the nascent cortical hierarchy.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

Same journal

Endogenous peptide derived from c-Cbl-associated protein counteracts its inhibitory effect on enteric neural crest cell colonization in Hirschsprung disease.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

Same journal

Drowsiness alters the neural dynamics but not the core computations of multisensory integration.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

Same journal

A Matter of Parameters: Tailored Transcranial Focused Ultrasound Enhances Cortico-Thalamo-Cortical Circuit Resonance.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

Same journal

Proactive visual and motor prioritization differentially scale with cue reliability.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 15, 2026

DiOLISTIC Labeling of Neurons from Rodent and Non-human Primate Brain Slices

DiOLISTIC Labeling of Neurons from Rodent and Non-human Primate Brain Slices

Published on: July 6, 2010

Neurons in Primate Entorhinal Cortex Represent Gaze Position in Multiple Spatial Reference Frames.

Miriam L R Meister¹, Elizabeth A Buffalo²

¹Washington National Primate Research Center, Seattle, Washington 98195; Department of Physiology and Biophysics, University of Washington, Seattle, Washington 98195; and University of Washington School of Medicine, Seattle, Washington 98195 mmeister@uw.edu.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|February 2, 2018

Summary

This summary is machine-generated.

Primate entorhinal cortex neurons represent gaze position relative to visual images or head position. This finding connects rodent and primate spatial coding, suggesting a fundamental role in memory and planning.

Keywords:

entorhinal cortex grid cell medial temporal lobe memory primate reference frame

More Related Videos

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex

Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex

Published on: March 28, 2012

Related Experiment Videos

Last Updated: Feb 15, 2026

DiOLISTIC Labeling of Neurons from Rodent and Non-human Primate Brain Slices

DiOLISTIC Labeling of Neurons from Rodent and Non-human Primate Brain Slices

Published on: July 6, 2010

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex

Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex

Published on: March 28, 2012

Area of Science:

Neuroscience
Cognitive Science

Background:

The entorhinal cortex (EC) is crucial for memory and exhibits spatial representations in rodents, such as grid and border cells, often aligned to environmental features.
While primate EC neurons show spatial selectivity for gaze position, it's unclear if they use allocentric (world-based) reference frames like rodents.

Purpose of the Study:

To investigate whether primate entorhinal cortex neurons encode spatial information in allocentric reference frames during naturalistic viewing.
To determine if primate EC spatial representations are analogous to those found in rodents.

Main Methods:

Recorded neural activity from the entorhinal cortex of two male rhesus monkeys during a free-viewing task.
Analyzed neuronal firing rates to identify spatial selectivity and reference frames (visual image-based vs. head-based).

Main Results:

A majority of recorded entorhinal neurons showed spatial selectivity for gaze position.
Neurons represented gaze position relative to distinct spatial reference frames, including image-based and head-based frames.
Entorhinal neural activity accurately predicted gaze position.

Conclusions:

Visuospatial representation is a fundamental property of primate entorhinal neurons.
The entorhinal cortex in primates may support relational memory and motor planning by coding attentional locus in behaviorally relevant frames of reference.
These findings bridge the understanding of spatial coding in rodents and primates.