Related Experiment Video
Updated: Apr 28, 2026
09:58
C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays
Published on: March 11, 2011
29.9K
Evidence for a specific short-term memory in the cuttlefish, Sepia.
V Agin1, L Dickel1, R Chichery1
1Laboratoire de Psychophysiologie, Université de Caen, Esplanade de la Paix, 14032 Caen Cedex, France; C.R.E.C., rue Charcot, 14530 Luc-sur-Mer, France.
Behavioural Processes
|June 5, 2014
Summary
Cuttlefish learning to inhibit predatory behavior demonstrates short-term memory. This study confirms that short-term retention after a single learning trial reflects a genuine learning process in cuttlefish.
Area of Science:
- Marine biology
- Animal behavior
- Neuroscience
Background:
- Cuttlefish exhibit rapid learning to suppress predatory actions when presented with prey in containment.
- Existing research suggests distinct short-term and long-term memory systems in cuttlefish, with notable retention at 2-8 minutes and 1 hour, and response recovery around 20 minutes.
Purpose of the Study:
- To investigate whether short-term retention observed after brief delays in cuttlefish learning is a true learning effect.
- To differentiate specific short-term memory processes from other potential influences on behavior.
Main Methods:
- Comparison of cuttlefish behavior across three experimental conditions.
- Two conditions involved a single training trial of varying durations (5 or 20 minutes).
- A control group received no specific training to establish a baseline.
Main Results:
- Control cuttlefish did not show a significant reduction in predatory attack levels.
- Cuttlefish exposed to a single learning trial exhibited short-term retention of the inhibitory response.
- This retention was indicative of a specific short-term memory process.
Conclusions:
- The study validates that short-term retention in cuttlefish, following a single learning experience, is a genuine manifestation of learning.
- Findings support the existence of a specific short-term memory mechanism underlying this behavior in cuttlefish.
Related Concept Videos
01:14Sensory Memory
1000
Sensory memory captures information from the environment in its original form for a very brief duration, just long enough to be exposed to visual, auditory, and other senses. This type of memory is detailed and rich but quickly lost unless certain strategies are employed to transfer it into short-term or long-term memory. Sensory information is continuously bombarding the human brain, yet only a small fraction is absorbed, as most of it does not significantly impact daily life. For instance,...
1000
01:22Chunking and Rehearsal in Sensory Memory
806
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
806
01:23System of Memory
9.0K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
9.0K
01:19Role of Hippocampus in Memory
2.0K
The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
2.0K