Assessment of Olfactory Memory in Olfactory Dysfunction

Perception ◽  
2016 ◽  
Vol 46 (3-4) ◽  
pp. 516-529 ◽  
Author(s):  
Kathrin Kollndorfer ◽  
Johanna Reichert ◽  
Josephine Braunsteiner ◽  
Veronika Schöpf
Keyword(s):  
Memory Performance ◽  
Memory Function ◽  
Memory Test ◽  
Odor Identification ◽  
Olfactory Perception ◽  
Olfactory Memory ◽  
Memory Tests ◽  
Additional Information ◽  
Odor Memory ◽  
Perceptual Test

To assess all clinically relevant components of olfactory perception, examinations for olfactory sensitivity, discrimination, and identification are performed. Besides the standard perceptual test battery, episodic olfactory memory might offer additional information about olfactory abilities relative to these standard clinical tests. As both olfactory deficits and memory deficits are early symptoms in neurodegenerative disorders, olfactory memory may be of particular interest. However, to date little is known about episodic olfactory memory performance in patients with decreased olfactory function. This study includes the investigation of olfactory memory performance in 14 hyposmic patients (8 female, mean age 52.6 years) completing two episodic odor memory tests (Sniffin’ Test of Odor Memory and Odor Memory Test). To control for a general impairment in memory function, a verbal and a figural memory test were carried out. A regression model with multiple predictors was calculated for both odor memory tests separately. Odor identification was identified as the only significant predictor for both odor memory tasks. From our results, we conclude that currently available olfactory memory tests are highly influenced by odor identification abilities, implying the need for the development and validation of additional tests in this field which could serve as additional olfactory perception variables for clinical assessment.

scholarly journals The Sniffin’ Sticks Odor Discrimination Memory Test: A Rapid, Easy-to-Use, Reusable Procedure for Testing Olfactory Memory

2018 ◽  
Vol 128 (3) ◽  
pp. 227-232
Author(s):  
Gerold Besser ◽  
Leandra Jobs ◽  
David Tianxiang Liu ◽  
Christian A. Mueller ◽  
Bertold Renner
Keyword(s):  
Test Scores ◽  
Low Cost ◽  
Odor Discrimination ◽  
Memory Test ◽  
Test Results ◽  
Olfactory Memory ◽  
Odor Memory ◽  
Identification Test ◽  
The Mean ◽  
Test Retest Reliability

Objectives: Neurodegenerative diseases can alter odor memory in addition to inducing quantitative impairment, and olfactory memory can be tested using the validated olfactory memory test with encapsulated odors (Odor Discrimination Memory Test [ODMT]). The aim of this study was to investigate the new Sniffin’ Sticks ODMT (SSODMT), which is comparable with the ODMT. Methods: The SSODMT was administered to 48 subjects (30 women, 18 men; mean age, 34.6 ± 16.3 years). Olfactory function was assessed using the 16-item Sniffin’ Sticks Identification Test. The ODMT was administered to a subgroup of 10 subjects to assess the comparability of the SSODMT and the ODMT. Test-retest reliability was studied in another 20 subjects (10 women, 10 men; mean age, 32.9 ± 16.4 years). Results: The mean SSODMT score was 10.7 ± 1.8 (range, 5-12). SSODMT test scores were significantly correlated with Sniffin’ Sticks Identification Test scores ( r67 = 0.66, P < .001) and were significantly negatively correlated with subject age ( r48 = −0.70, P < .001). SSODMT and ODMT scores were highly and significantly correlated, indicating that the test results were comparable ( r10 = 0.75, P < .05). Test-retest analysis revealed a significant correlation ( r20 = 0.68, P < .001). Conclusions: These results demonstrate the usefulness of the new SSODMT and its comparability with the ODMT. The SSODMT is an easy, rapid, and low-cost tool that is suitable for routine use in evaluating odor memory.

Testing the Retrieval Effort Theory

2019 ◽  
Vol 78 (3-4) ◽  
pp. 125-136
Author(s):  
Bo Wang ◽  
Chaoyong Zhao
Keyword(s):  
Testing Effect ◽  
Retrieval Practice ◽  
Memory Performance ◽  
Memory Test ◽  
Enhancement Effect ◽  
Memory Retention ◽  
Memory Tests ◽  
Initial Learning ◽  
Three Delays

Abstract. Testing effect refers to the phenomenon that, relative to relearning, retrieval practice enhances delayed memory performance. In two experiments, this study tested the retrieval effort theory proposed to explain the enhancement effect of testing. In Experiment 1, participants learned English words with their corresponding Chinese definitions. Then they were tested on half of the encoded items and restudied the remaining half under three delays after encoding (0 min, 20 min, and 40 min). All participants took delayed memory tests 60 min after the end of the initial encoding phase. The result showed that testing conducted 20 min after encoding, but not immediately or 40 min after encoding, enhanced memory retention. In Experiment 2, feedback was provided to ensure more equitable exposure across the conditions, and then the final memory test was conducted 24 h after the end of learning. The result showed that testing enhanced memory retention across the three delay conditions, and that the size of the testing effect increased with the extension of the interval between initial learning and retrieval practice, thus providing support for the retrieval theory.

Mode of Instruction and Memory Test Performance

1982 ◽  
Vol 5 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Barbara Rogoff
Keyword(s):  
Verbal Memory ◽  
Test Performance ◽  
Memory Performance ◽  
Memory Test ◽  
Cognitive Test ◽  
Verbal Instruction ◽  
Memory Tests ◽  
Mode Of Instruction ◽  
High Level ◽  
The U.S

Cross-cultural literature suggests that schooling's effect on cognitive test performance is due to school's reliance on instruction using language removed from its everyday context, in contrast with informal instruction using demonstration of skills. The present study takes advantage of variability in use of verbal instruction and demonstration by mothers teaching their 9-year-olds, in order to test the relation of mode of instruction to memory test performance. In study 1, with 31 children from a society (Highland Mayan) in which much of children's learning occurs through observation, maternal mode of instruction was highly predictive of performance on two verbal memory tests. However, mode of instruction was unrelated to performance on two scene memory tests. Thus, mode of instruction has specific predictiveness to verbal memory skills but not memory performance in general. Study 2 replicated study 1 with 30 U.S. children, and found that the U.S. mothers provided more verbal instruction and less demonstration than the Mayan mothers. In study 2, mode of instruction was not predictive of the children's memory test performance. This may be due to the U.S. children's exposure to a high level of verbal instruction rather than demonstration, a threshold above which further variation is unpredictive. The question whether exposure to verbal instruction vs. demonstration accounts for some of the demonstrated effects of schooling on test performance is answered with a qualified "yes": There is a relationship between maternal mode of instruction and test performance but only for tests relying on verbal material and for children whose exposure to verbal instruction is not as extreme as in Western culture. The effect is not general, and is contextually influenced.

Estimated Prevalence of Age-Associated Memory Impairment Derived From Standardized Tests of Memory Function

1994 ◽  
Vol 6 (1) ◽  
pp. 95-104 ◽  
Author(s):  
Glenn J. Larrabee ◽  
Thomas H. Crook
Keyword(s):  
Standardized Tests ◽  
Memory Impairment ◽  
Normative Data ◽  
Memory Performance ◽  
Memory Function ◽  
Performance Criterion ◽  
Considerable Variability ◽  
Memory Tests ◽  
Upper Bound Estimate ◽  
Clear Increase

Recent research on the prevalence of age-associated memory impairment (AAMI) has reflected considerable variability, with estimates ranging from 35% to 98%. This variability is attributed to (a) failure to employ the complete diagnostic criteria for AAMI and (b) failure to consider age as a variable in estimating prevalence. Analysis of published normative data on both standard clinical memory tests and computer-simulated everyday memory tests shows a clear increase in the percentage of persons meeting the AAMI memory performance criterion as a function of age. These data are offered as an upper-bound estimate of the prevalence of AAMI, by age decade.

Positive Arousal Enhances the Consolidation of Item Memory

2015 ◽  
Vol 74 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Bo Wang
Keyword(s):  
Episodic Memory ◽  
Memory Consolidation ◽  
Source Memory ◽  
Emotional Arousal ◽  
Theoretical Models ◽  
Memory Test ◽  
Learning Phase ◽  
Item Memory ◽  
Memory Tests ◽  
Immediate Memory

Emotional arousal induced after learning has been shown to modulate memory consolidation. However, it is unclear whether the effect of postlearning arousal can extend to different aspects of memory. This study examined the effect of postlearning positive arousal on both item memory and source memory. Participants learned a list of neutral words and took an immediate memory test. Then they watched a positive or a neutral videoclip and took delayed memory tests after either 25 minutes or 1 week had elapsed after the learning phase. In both delay conditions, positive arousal enhanced consolidation of item memory as measured by overall recognition. Furthermore, positive arousal enhanced consolidation of familiarity but not recollection. However, positive arousal appeared to have no effect on consolidation of source memory. These findings have implications for building theoretical models of the effect of emotional arousal on consolidation of episodic memory and for applying postlearning emotional arousal as a technique of memory intervention.

Impact of Comorbid Depression on Serial Position Effects in Alzheimer’s Disease

GeroPsych ◽  
2014 ◽  
Vol 27 (4) ◽  
pp. 161-169 ◽  
Author(s):  
Nienke A. Hofrichter ◽  
Sandra Dick ◽  
Thomas G. Riemer ◽  
Carsten Schleussner ◽  
Monique Goerke ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Serial Position ◽  
Episodic Memory ◽  
Memory Performance ◽  
Memory Function ◽  
Word List ◽  
Position Effects ◽  
Serial Position Effects ◽  
List Memory

Hippocampal dysfunction and deficits in episodic memory have been reported for both Alzheimer’s disease (AD) and major depressive disorder (MDD). Primacy performance has been associated with hippocampus-dependent episodic memory, while recency may reflect working memory performance. In this study, serial position profiles were examined in a total of 73 patients with MDD, AD, both AD and MDD, and healthy controls (HC) by means of CERAD-NP word list memory. Primacy performance was most impaired in AD with comorbid MDD, followed by AD, MDD, and HC. Recency performance, on the other hand, was comparable across groups. These findings indicate that primacy in AD is impaired in the presence of comorbid MDD, suggesting additive performance decrements in this specific episodic memory function.

Learning From (Test) Experience

2020 ◽  
Vol 228 (4) ◽  
pp. 264-277 ◽  
Author(s):  
Evan E. Mitton ◽  
Chris M. Fiacconi
Keyword(s):  
Recognition Memory ◽  
Test Performance ◽  
Memory Performance ◽  
Judgments Of Learning ◽  
Visual Images ◽  
Memory Tests ◽  
Recognition Memory Performance ◽  
Study Test ◽  
Explicit Feedback

Abstract. To date there has been relatively little research within the domain of metamemory that examines how individuals monitor their performance during memory tests, and whether the outcome of such monitoring informs subsequent memory predictions for novel items. In the current study, we sought to determine whether spontaneous monitoring of test performance can in fact help individuals better appreciate their memory abilities, and in turn shape future judgments of learning (JOLs). Specifically, in two experiments we examined recognition memory for visual images across three study-test cycles, each of which contained novel images. We found that across cycles, participants’ JOLs did in fact increase, reflecting metacognitive sensitivity to near-perfect levels of recognition memory performance. This finding suggests that individuals can and do monitor their test performance in the absence of explicit feedback, and further underscores the important role that test experience can play in shaping metacognitive evaluations of learning and remembering.

Introduction to the cognitive abilities account for the reminiscence bump in the temporal distribution of autobiographical memory

2019 ◽  
Author(s):  
Steve M. J. Janssen
Keyword(s):  
Autobiographical Memory ◽  
Cognitive Abilities ◽  
Memory Performance ◽  
Memory Function ◽  
Early Adulthood ◽  
Temporal Distribution ◽  
Alternative Account ◽  
Reminiscence Bump ◽  
Significant Events ◽  
Cue Words

People tend to recall more specific personal events from adolescence and early adulthood than from other lifetime periods, a finding known as the reminiscence bump. Several explanations have suggested that events from the reminiscence bump are especially emotional, important, or positive, but studies using cue words have not found support for these claims. An alternative account postulates that cognitive abilities function optimally in adolescence and early adulthood, which may cause more memories to be stored in those lifetime periods. Although other studies have previously discussed the cognitive abilities account as a possible explanation for the reminiscence bump, it was only recently shown that cognitive abilities are indeed related to autobiographical memory performance. When this recent finding is combined with previous findings that cognitive abilities as well as autobiographical memory function optimally in adolescence and early adulthood, they suggest that the cognitive abilities account is a promising explanation for the reminiscence bump in the temporal distribution of word-cued memories. However, because the account does not aim to explain the reminiscence bump in the distribution of highly significant events, it should be regarded as complementary to the existing accounts.

Knowledge is power: prior knowledge aids memory formation for both congruent and incongruent events, but in different ways.

2017 ◽  
Author(s):  
Andrea Greve ◽  
Elisa Cooper ◽  
Roni Tibon ◽  
Richard Henson
Keyword(s):  
Episodic Memory ◽  
Prior Knowledge ◽  
Memory Performance ◽  
Memory Formation ◽  
Memory Test ◽  
World Knowledge ◽  
Apparent Paradox ◽  
Power Prior

Events that conform to our expectations, i.e, are congruent with our world knowledge or schemas, are better remembered than unrelated events. Yet events that conflict with schemas can also be remembered better. We examined this apparent paradox in four experiments, in which schemas were established by training ordinal relationships between randomly-paired objects, while episodic memory was tested for the number of objects on each trial. Better memory was found for both congruent and incongruent trials, relative to unrelated trials, producing memory performance that was a “U-shaped” function of congruency. Furthermore, the incongruency advantage, but not congruency advantage, emerged even if the information probed by the memory test was irrelevant to the schema, while the congruency advantage, but not incongruency advantage, also emerged after initial encoding. Schemas therefore augment episodic memory in multiple ways, depending on the match between novel and existing information.

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