Related Experiment Video
Updated: Jul 19, 2026

04:47
Olfactory Context Dependent Memory: Direct Presentation of Odorants
Published on: September 18, 2018
Source and item memory for odors and objects in children and young adults
Eva Pirogovsky1, Paul E Gilbert, Claire Murphy
1Department of Psychology, San Diego State University, 6363 Alvarado Court, San Diego, CA 92120, USA.
Developmental Neuropsychology
|September 26, 2006
Summary
Children exhibit poorer odor source memory compared to young adults, likely due to developing frontal lobes. This contrasts with object memory, where performance was similar between age groups.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Developmental Psychology
Background:
- Children have weaker recall and recognition memory for odors than adolescents.
- Children underperform young adults in source memory tasks involving visual and auditory stimuli.
- Odor source memory has not been previously studied in children.
Purpose of the Study:
- To investigate and compare source and item memory for odors and objects in children and young adults.
- To determine if children's source memory for odors differs significantly from that of young adults.
Main Methods:
- Participants (children 7-10 years; adults 18-24 years) studied 16 odors or objects presented by two experimenters (sources).
- Item memory was tested via recognition of studied vs. novel stimuli.
- Source memory was assessed by asking participants to identify which experimenter presented specific stimuli.
Main Results:
- Children showed significantly larger differences between item and source memory for odors compared to young adults.
- This indicates poorer source memory for odors in children.
- No significant differences in source memory performance for objects were found between the age groups.
Conclusions:
- Children have a specific deficit in source memory for odors compared to young adults.
- This finding may be linked to the ongoing development of the frontal lobes, crucial for source and odor memory.
- Immature frontal lobe function likely contributes to children's difficulties with odor source memory.
Related Concept Videos
Olfaction
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
Physiology of Smell and Olfactory Pathway
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
Olfactory Receptors: Location and Structure
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
Sensory Memory
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,...
Higher Mental Functions of Brain: Learning and Memory
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...
Eyewitness Memory
Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function like a...
One such error is memory distortion, which occurs because human memory does not function like a...
