Lateralization of Olfactory Cognitive Functions: Effects of Rhinal Side of Stimulation

Broman, Daniel A.; Olsson, Mats Joakim Robert; Nordin, Steven

doi:10.1093/chemse/26.9.1187

Cited by 29 publications

(24 citation statements)

References 40 publications

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“…Greater activation of the right OFC and the right PC was observed when the participants evaluated odor familiarity compared with when they detected odors (Royet et al, 1999, 2011; Plailly et al, 2005). The lateralization of this memory process (Royet and Plailly, 2004) was consistent with the higher familiarity of odors presented to the right nostril than those presented to the left nostril (Broman et al, 2001). This could also explain the right hemisphere lateralization of the odor process observed in the first studies when odorants were passively perceived because the odorants were familiar and could have automatically triggered recognition (e.g., Zatorre et al, 1992; Yousem et al, 1997; Sobel et al, 1998; Savic et al, 2000; Poellinger et al, 2001).…”

Section: Autobiographical Approaches For Studying the Neural Basis Ofsupporting

confidence: 55%

A review on the neural bases of episodic odor memory: from laboratory-based to autobiographical approaches

Saive

Royet

Plailly

2014

Front. Behav. Neurosci.

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Odors are powerful cues that trigger episodic memories. However, in light of the amount of behavioral data describing the characteristics of episodic odor memory, the paucity of information available on the neural substrates of this function is startling. Furthermore, the diversity of experimental paradigms complicates the identification of a generic episodic odor memory network. We conduct a systematic review of the literature depicting the current state of the neural correlates of episodic odor memory in healthy humans by placing a focus on the experimental approaches. Functional neuroimaging data are introduced by a brief characterization of the memory processes investigated. We present and discuss laboratory-based approaches, such as odor recognition and odor associative memory, and autobiographical approaches, such as the evaluation of odor familiarity and odor-evoked autobiographical memory. We then suggest the development of new laboratory-ecological approaches allowing for the controlled encoding and retrieval of specific multidimensional events that could open up new prospects for the comprehension of episodic odor memory and its neural underpinnings. While large conceptual differences distinguish experimental approaches, the overview of the functional neuroimaging findings suggests relatively stable neural correlates of episodic odor memory.

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Section: Autobiographical Approaches For Studying the Neural Basis Ofsupporting

confidence: 55%

A review on the neural bases of episodic odor memory: from laboratory-based to autobiographical approaches

Saive

Royet

Plailly

2014

Front. Behav. Neurosci.

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“…Moreover, having poor odor threshold is likely to hamper the development of odor identification and discrimination ability. Finally, while our findings suggest a lefthemisphere advantage for odor identification and discrimination, contrary to the findings by others (see, for example, Broman et al 2001;Royet and Plailly 2004), the opportunity to fully understand the lateralization of olfactory function remains.…”

Section: Discussioncontrasting

confidence: 99%

“…The most consistent observation (cf. Broman et al 2001) has been of a lefthemisphere advantage in odor identification and has been observed in healthy participants (Herz et al 1999;Homewood and Stevenson 2001), split-brain patients (Gordon and Sperry 1969), and patients with temporal lobe epilepsy (Hudry et al 2014).…”

Section: Introductionmentioning

confidence: 98%

Investigating Left- and Right-Nostril Olfactory Abilities with Respect to Psychopathy

Mahmut

Stevenson

2016

Chem. Percept.

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Introduction Evidence for olfactory lateralization is mixed, although a left-sided benefit for odor identification seems likely. Whether lateralization of function is moderated by variables such as gender and handedness has been previously explored. However, there has been no test of whether psychopathy and empathy-personality characteristics which may themselves affect lateralization and which can affect olfactory function-moderate olfactory lateralization. Methods Eighty men and women engaged in mono-rhinal testing for odor threshold, identification, and discrimination ability, as well as completing standardized measures of psychopathy and empathy. Results and Discussion While there was a clear left-sided benefit for odor identification and discrimination, we found no evidence that psychopathy or empathy moderated these effects. When the current data were combined with that from previous studies, we found that psychopathy was correlated with poorer odor discrimination and identification, whereas empathy was correlated with enhanced discrimination and identification, pointing to processing commonalities between olfaction, psychopathy, and empathy.

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“…In odor memory research, only two studies have looked at memory awareness for odors. One study investigated how this measure was associated with left and right hemisphere functioning (Broman et al 2001). The other showed how an age-related decrease in recollective experience of odors could be tied to poorer odor-naming ability among the elderly .…”

Section: Memory Awarenessmentioning

confidence: 99%

Odor Memory Performance and Memory Awareness: A Comparison to Word Memory Across Orienting Tasks and Retention Intervals

et al. 2009

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Odor memory has been argued to exhibit unique characteristics in relation to memory for other types of stimuli such as visually presented words. Two experiments investigated episodic recognition performance as well as memory awareness for odors and words across manipulations of orienting task and retention interval. Orienting task mattered little to odor recognition. However, in contradiction with several previous studies, substantial forgetting of odors was found. After controlling for effects of odor identifiability, it was found that memory for identified odors exhibited greater similarities to memory for words than to memory for unidentified odors.Keywords Odor memory . Word memory . Episodic recognition . Odor identification Several scholars of odor memory have pointed out certain functional traits suggesting that odor memory is characterized by parameters that are different from those of memory for other types of stimuli (

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Lateralization of Olfactory Cognitive Functions: Effects of Rhinal Side of Stimulation

Cited by 29 publications

References 40 publications

A review on the neural bases of episodic odor memory: from laboratory-based to autobiographical approaches

A review on the neural bases of episodic odor memory: from laboratory-based to autobiographical approaches

Investigating Left- and Right-Nostril Olfactory Abilities with Respect to Psychopathy

Odor Memory Performance and Memory Awareness: A Comparison to Word Memory Across Orienting Tasks and Retention Intervals

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