Exam 14: Olfaction: Perceiving Odors

Which scenario will most likely result in the HIGHEST concentration of odorant molecules?

A _____ consists of two or more atoms bound together by electromagnetic forces.

Which subdivision of the piriform cortex represents the quality of an odor, regardless of whether the odor is simple or complex?

Which odorant has the LOWEST detection threshold?

Describe the effects of three different causes of olfactory impairments. Explain how olfactory performance is recovered in these cases (if possible).

Which area in the brain is responsible for odor-evoked memories to be quickly acquired and become long lasting?

Axons of mitral and tufted cells form the:

Which statement is NOT true of acquired anosmia?

The fact that odor-evoked memories that tend to be quickly acquired, long lasting, and emotionally charged has been attributed to the fact that the olfactory pathway includes the amygdala, the orbitofrontal cortex, and the:

Cindy inhales a complex mixture of odorants that she recognizes and identifies as bacon. Which area of the piriform cortex is responsible for her ability to name the odor?

The vomeronasal olfactory system in many species:

Dogs are more sensitive at detecting odors than humans because:

Amanda smells the shirts of six different men whom she has never met. According to the research by Jacob et al. (2002) on the role of Human Leukocyte antigen (HLA) genes responsible for regulating the immune system in offspring, Amanda will prefer the shirts of men who have HLA genes that are:

The _____ is the only brain region that both receives signals directly from the olfactory bulb and is known to be dedicated solely to olfaction.

The women on a soccer team find that by the end of the soccer season their menstrual cycles have become more synchronized. Explain how odor detection and pheromones could account for this finding.

The olfactory pathway from the receptors to the cortex does NOT go through the thalamus. This suggests that the:

If an organism only had three types of olfactory receptor neurons (ORNs), how many different odorants could be encoded? (Assume each ORN can have only one level of activation; it is either active or inactive.)

Miller and Maner (2010) had male college students smell T-shirts worn by women as they slept. Some of the T-shirts had been worn by the women on the nights closest to ovulation, some on the nights farthest from ovulation, and some had never been worn. The men were asked to rate the pleasantness of the odors of the T-shirts. The results showed that there were:

Willander and Larsson (2006) studied autobiographical memories elicited by odors, words, or pictures for participants 65 to 80 years of age. They found that for the group that:

Which statement is NOT true about the eNose?