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Context-specific response to odors in relation to extraversion

, : Context-specific response to odors in relation to extraversion. Society for Neuroscience Abstracts 26(1-2): Abstract No -754 3

A core process underlying extraversion (EXV) is the dopamine (DA) facilitation of contextual encoding of salient incentive stimuli. We assessed the effects of intermittent DA activation on response to odors as a function of EXV. Low and high EXV measured by survey were assigned to one of two groups: 1) main world (MW): (n=35; 3 sessions over 2 weeks; day 1,4, 10-14; same context) or 2) third world (TW): (n=10; 4 sessions over 2 weeks: day 1,4,11,14; same context sessions 1,2,4, different context session 3). MW subjects were divided into 2 subgroups: drug (sessions 1-3 oral methylphenidate (MP), .3,.5,.3 mg/kg) or placebo (sessions 1,2 lactose, session 3 .3 mg/kg MP); all TW subjects took MP (sessions 1-4 .5,.5,.3,.3 mg/kg). During peak MP effects, subjects viewed incentive-motivating films as chocolate odor was diffused into the room to create the salient context. They later responded to odor stimuli using the UPSIT cinnamon and chocolate odor cards. High EXV MWD subjects rated chocolate but not cinnamon significantly higher in the test session than in the first session, and at test rated chocolate as more pleasant than the other groups. High EXV MWP and low EXV MWD and MWP showed no significant change in within-group odor ratings across sessions, and between-group ratings did not differ in either session. TW high EXV, but not low EXV, rated the chocolate odor as significantly more pleasant than the first session when tested in the same context (session 4) than when tested in a different context (session 3). The results suggest that experience-dependent variation in DA facilitation of encoding the salient context of incentive stimuli contributes to the development and stability of EXV.


Other references

Sullenger, B.A.; White, R.R.; Rusconi, C.P., 2003: Therapeutic aptamers and antidotes: a novel approach to safer drug design. Ernst Schering Research Foundation Workshop: 217-223

Brand, Y.; Setz, C.; Levano, S.; Listyo, A.; Chavez, E.; Pak, K.; Sung, M.; Radojevic, V.; Ryan, A.F.; Bodmer, D., 2012: Simvastatin protects auditory hair cells from gentamicin-induced toxicity and activates Akt signaling in vitro. Inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A reductase, known as statins, are commonly used as cholesterol-lowering drugs. During the past decade, evidence has emerged that statins also have neuroprotective effects. Research in the retina h...

Limoli, P.G.; D'amato, L.; Marino, L.; Giulotto, A.; Franzetti, M.; Carella, A.; Raspino, S., 1993: The macular stimulation's by Amblimat influence in partially sighted and rehabilitated eyes: Preliminary results. The Authors test the macular stimulation by Amblimat in low vision patients, in order to improve the visual rehabilitation.

Jones Peter B., 1992: South Sakhalin; new frontier of a mature exploration area of the USSR. Annual Meeting Abstracts - American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists 1992: 60

Richter, K., 1966: Dry plasma production and the hepatitis problem. Folia Haematologica 85(4): 320-325

Zhang, G.; Xi, Y-Long.; Xue, Y-Hao.; Xiang, X-Ling.; Wen, X-Li., 2015: Coal fly ash effluent affects the distributions of Brachionus calyciflorus sibling species. Fly ash, a coal combustion residue of thermal power plants and a source of multiple pollutants, has been recognized as an environmental hazard all over the world. Although it is known that fly ash effluent affects density, diversity and distributi...

Loeppert, R.J.; Mortland, M.; Pinnavaia, T., 1979: Synthesis and properties of heat-stable expanded smectite and vermiculite. Clays and clay minerals7(3): 201-208

Marx, J., 2007: Oncology. Recruiting the cell's own guardian for cancer therapy. Science 315(5816): 1211-1213

Bulterys, M.; Morgenstern, H.; Weed, D.L., 1997: Quantifying the expected vs potential impact of a risk-factor intervention program. American Journal of Public Health 87(5): 867-868

Hutchinson, D.P.; Vander Sluis, K.L., 1977: Injection tuning of a pulsed TEA CO(2) laser. Applied Optics 16(2): 293-294