-None detection/olfactory plasticity

[DrSmellThis]

http://www.blackwell-synergy.c

om/links/doi/10.1113/jphysiol.2003.054726/full/ (http://www.blackwell-synergy.com/links/doi/10.1113/jphysiol.2003.054726/full/)

[Chemo (BDC Concepts)]

Original here (http://www.blackwell-synergy.com/links/doi/10.1113/jphysiol.2003.054726/fu

ll/)

Evidence for peripheral plasticity in human odour response

Of those

people who are anosmic to androstenone, a proportion can acquire sensitivity to it by repeated exposure and even

those who are able to smell it can lower their threshold with this treatment. Using olfactory threshold testing,

intranasal electrophysiology and EEG we show for the first time that: (1) the subjects' detection threshold is

proportional to the amplitude of the olfactory evoked potential (EOG) recorded inside the nose; (2) the EOG

amplitude is correlated with the amplitude of the olfactory event-related potential (OERP) recorded on the scalp;

and (3) with repetitive exposure, human subjects acquire a reduced threshold for androstenone and, as they do so,

their EOG and OERP increase. These observations support the existence of odourant-specific plasticity in the

peripheral olfactory system.

Great find DST! So, now we have evidence that suggests those that are

repeatedly exposed to pheromones may develop an increased sensitivity! This would explain the timeframe of

sometimes weeks before results are obtained from the day-to-day crowd (like co-workers) whereas at the club it is

more hit and miss (most likely from those that are ovulating).

Thoughts?

Bobby

[bjf]

Isn't that just conciously smelling

it? You don't need to conciously smell pheromones to be affected by them

[Chemo (BDC Concepts)]

It shouldn't matter

whether the exposure is intentional or not...the subject should become sensitized over time (at least according to

the results of this study).

Bobby

[bjf]

What I am saying is that people who

can't conciously percieve the smell of none still should be affected by it.

[Chemo (BDC Concepts)]

Ahhh...I do

apologize.

Bobby

[DrSmellThis]

If sensitivity grows with

time, it's likely that overall sensitivity does, not just brute conscious smelling; and it's likely that

consciously smelling something itself increases one's overall reaction to it.

[bjf]

If sensitivity

grows with time, it's likely that overall sensitivity does, not just brute conscious smelling; and it's likely

that consciously smelling something itself increases one's overall reaction to it.


As in

vomiting from the stench of urine? :lol:

[DrSmellThis]

lol. Remember, -none in

small amounts smells pleasantly musky! This points to one of the popular misconceptions about pheromones.