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

Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

2.4K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
2.4K
Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

4.5K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
4.5K
Association Areas of the Cortex01:21

Association Areas of the Cortex

9.0K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
9.0K
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

7.1K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
7.1K

You might also read

Related Articles

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

Sort by
Same author

Strong coupling between pyramidal cell activity and network oscillations in the olfactory cortex.

Neuroscience·2008
Same author

fMRI visualization of transient activations in the rat olfactory bulb using short odor stimulations.

NeuroImage·2007
Same author

Piriform cortex functional heterogeneity revealed by cellular responses to odours.

The European journal of neuroscience·2003
Same author

Expression of Fos in the piriform cortex after acquisition of olfactory learning: an immunohistochemical study in the rat.

Brain research bulletin·2001
Same author

Cell activity in the anterior piriform cortex during an olfactory learning in the rat.

Behavioural brain research·2001
Same author

Implications of relaxation dynamics in the synaptic control of olfactory cortex activity.

Bio Systems·1999
Same journal

Electroacupuncture alleviates neuroinflammation and promotes recovery of neurological functions after intracerebral hemorrhage by modulating α7nAChR/JAK2/STAT3 signaling pathway.

Neuroreport·2026
Same journal

Non-cell-autonomous regulation of Bhlhb5 expression in cortical projection neurons by GABAergic interneuron development and position.

Neuroreport·2026
Same journal

C-C motif chemokine ligand 3 mediates inflammatory response via NLRP3 inflammasome and neuron damage after traumatic brain injury.

Neuroreport·2026
Same journal

Methyltransferase-like 14 alleviates neuronal ferroptosis in Alzheimer's disease by regulating the peroxiredoxin 6/apoptosis signal-regulating kinase 1 signaling pathway.

Neuroreport·2026
Same journal

Hand mental rotation reaction time reflects motor imagery strategy and predicts changes in finger dexterity after motor imagery.

Neuroreport·2026
Same journal

Functional exploration of metabotropic glycine receptors in cultured rat hippocampal slices.

Neuroreport·2026
See all related articles

Related Experiment Video

Updated: Jan 19, 2026

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents
07:52

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents

Published on: May 23, 2025

800

Piriform cortex late activity revealed functional spatial heterogeneity

P Litaudon1, M Cattarelli

  • 1CNRS-Université Claude Bernard, Lyon I, Villeurbanne, France.

Neuroreport
|July 10, 1995
PubMed
Summary
This summary is machine-generated.

Researchers studied optical signals in rat piriform cortex (PC) after olfactory bulb stimulation. They found late responses were more prominent in the posterior PC, suggesting functional differences within this brain region.

More Related Videos

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

46.4K
Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
07:03

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

7.2K

Related Experiment Videos

Last Updated: Jan 19, 2026

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents
07:52

Multiscale Investigations of Cortical Processing by Integrating Laminar Polytrodes and Optogenetics with Micro Electrocorticography in Rodents

Published on: May 23, 2025

800
Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

46.4K
Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
07:03

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

7.2K

Area of Science:

  • Neuroscience
  • Olfactory system research

Background:

  • The piriform cortex (PC) is crucial for olfactory processing.
  • Understanding the PC's functional organization is key to deciphering olfactory perception.

Purpose of the Study:

  • To investigate the spatial distribution of early and late optical responses in the rat piriform cortex.
  • To explore the functional heterogeneity of the PC based on response latency.

Main Methods:

  • In vivo optical signal recordings in the rat piriform cortex.
  • Electrical stimulation of the olfactory bulb.
  • Measurement of the ratio between early (disynaptic) and late wave amplitudes.
  • Analysis of the spatial distribution of this ratio across the PC.

Main Results:

  • An early optical response was consistently observed.
  • A longer latency component occurred with a probability of 0.25.
  • The ratio of early to late wave amplitudes varied spatially.
  • Late wave activity was more pronounced in the posterior PC compared to the anterior PC.

Conclusions:

  • The piriform cortex exhibits functional heterogeneity.
  • Distinct response patterns in anterior and posterior PC suggest specialized roles in olfactory processing.
  • These findings provide new insights into the PC's functional organization.