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 Experiment Videos

Emotion and phylogeny.

M Cabanac1

  • 1Department of Physiology, Faculty of Medicine, Laval University, Quebec, QC G1K 7P4, Canada. michel.cabanac@phs.ulaval.ca

The Japanese Journal of Physiology
|April 29, 1999
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Corticotropin Releasing Hormone and Body Weight Regulation: The Behavioral Approach.

Nutritional neuroscience·2016
Same author

Alliesthesia in visual and auditory sensations from environmental signals.

Physiology & behavior·2007
Same author

Calcium deficiency cannot induce obesity in rats.

Physiology & behavior·2005
Same author

Chronic stress reduces body fat content in both obesity-prone and obesity-resistant strains of mice.

Hormones and behavior·2005
Same author

Influence of pellet size on rat's hoarding behavior.

Physiology & behavior·2004
Same author

Salicylate as a partial inhibitor of emotional fever and body weight set-point in rats: behavioral and neuroendocrine study.

Physiology & behavior·2003
Same journal

Does higher red blood cell (RBC) lactate transporter activity explain impaired RBC deformability in sickle cell trait?

The Japanese journal of physiology·2006
Same journal

Single-channel properties of volume-sensitive Cl- channel in ClC-3-deficient cardiomyocytes.

The Japanese journal of physiology·2006
Same journal

Synthetic peptides of actin-tropomyosin binding region of troponin I and heat shock protein 20 modulate the relaxation process of skinned preparations of taenia caeci from guinea pig.

The Japanese journal of physiology·2006
Same journal

Establishment of a mouse macula densa cell line with an nNOS promoter driving EGFP expression.

The Japanese journal of physiology·2006
Same journal

The medial amygdala controls the coital access of female rats: a possible involvement of emotional responsiveness.

The Japanese journal of physiology·2006
Same journal

Comparison of biomechanical and histological properties in dog carotid arteries injured by neointima or intimal thickening.

The Japanese journal of physiology·2005
See all related articles

Gentle handling induced emotional fever and increased heart rate in lizards and mammals, but not amphibians or fish. This suggests emotions and consciousness emerged in reptiles, influencing decision-making through sensory pleasure.

Area of Science:

  • Comparative physiology
  • Evolutionary biology
  • Neuroscience

Background:

  • Mammals and reptiles exhibit physiological responses to emotional stimuli, unlike amphibians and fish.
  • Understanding the evolutionary origins of emotion and consciousness is crucial for comparative psychology.

Purpose of the Study:

  • To investigate the presence of emotional responses (fever, heart rate changes) in different vertebrate classes.
  • To explore the role of sensory pleasure in decision-making in reptiles.
  • To determine the evolutionary emergence of emotion and consciousness.

Main Methods:

  • Gentle handling of mammals, lizards, frogs, and fish to observe physiological changes.
  • Measuring heart rate and body temperature set-points.
  • Presenting iguanas with a motivational conflict involving a preferred food and environmental discomfort.

Related Experiment Videos

Main Results:

  • Gentle handling elevated body temperature (emotional fever) and heart rate in lizards and mammals, but not frogs or fish.
  • Iguanas demonstrated decision-making influenced by sensory pleasure, trading off food palatability against environmental cold.
  • Emotional responses and pleasure-based decision-making were absent in amphibians and fish.

Conclusions:

  • Emotion and consciousness likely emerged in the evolutionary lineage between amphibians and reptiles.
  • Reptiles may possess consciousness with affective dimensions, such as pleasure.
  • Sensory pleasure appears to play a significant role in reptilian decision-making, similar to humans.