What does it mean to say that sex addiction “exists” or “doesn’t exist” apart from the fact that denying its existence or rebutting the denials can get you your 15 minutes of fame. A diagnostic term is always a provisional construct, a tool for organizing information about phenomena we are trying to understand and work […]
Donald L. Hilton Jr., MD* Department of Neurosurgery, The University of Texas Health Sciences Center at San Antonio, USA Abstract Addiction has been a divisive term when applied to various compulsive sexual behaviors (CSBs), including obsessive use of pornography. Despite a growing acceptance of the existence of natural or process addictions based on an increased understanding of […]
Why the media takes one bad study and distort its conclusions for shock value. Published on July 24, 2013 by Robert Weiss, LCSW, CSAT-S in Love and Sex in the Digital Age By Robert Weiss LCSW, CSAT-S and Stefanie Carnes PhD, CSAT-S In a nationally distributed study published last week, a group of researchers argued […]
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J Am Coll Health. 2007 Sep-Oct;56(2):137-44. Fortson BL, Scotti JR, Chen YC, Malone J, Del Ben KS. Source West Virginia University, USA. [email protected] Abstract OBJECTIVE: To assess Internet use, abuse, and dependence. PARTICIPANTS: 411 undergraduate students. RESULTS: Ninety percent of participants reported daily Internet use. Approximately half of the sample met criteria for Internet abuse, […]
Richard A. Depue* and Yu Fu Human Development, Cornell University, Ithaca, NY, USA Research supports an association between extraversion and dopamine (DA) functioning. DA facilitates incentive motivation and the conditioning and incentive encoding of contexts that predict reward. Therefore, we assessed whether extraversion is related to the efficacy of acquiring conditioned contextual […]
By Karene Booker Extroverts may be more outgoing and cheerful in part because of their brain chemistry, reports a study by Cornell neuroscientists. People’s brains respond differently to rewards, say the neuroscientists. Some people’s brains release more of the neurotransmitter dopamine, which ultimately gives them more reasons to be excited and engaged with the world, […]
Read More… from (L) Extroverts have more sensitive brain-reward system (2013)
FULL STUDY Annu Rev Neurosci. 2011;34:441-66. doi: 10.1146/annurev-neuro-061010-113641. Gerfen CR, Surmeier DJ. Source Laboratory of Systems Neuroscience, National Institute of Mental Health, Bethesda, Maryland 20892, USA. [email protected] Abstract The basal ganglia are a chain of subcortical nuclei that facilitate action selection. Two striatal projection systems–so-called direct and indirect pathways–form the functional backbone of the basal […]
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July 3, 2013, 12:01 am By GRETCHEN REYNOLDS In an eye-opening demonstration of nature’s ingenuity, researchers at Princeton University recently discovered that exercise creates vibrant new brain cells — and then shuts them down when they shouldn’t be in action. For some time, scientists studying exercise have been puzzled by physical activity’s two seemingly incompatible […]
Read interview in English ANDRÉS LOMEÑA: Algunos problemas sexuales como la disfunción eréctil no responden a motivos psicológicos, sino físicos. El incremento brutal en el consumo de porno habría modificado sensiblemente nuestras respuestas cerebrales al placer. ¿Cómo llegó a esas conclusiones? GARY WILSON: Es evidente que la disfunción eréctil existe, así que también existen las […]
Proc Natl Acad Sci U S A. 2013 Jan 29;110(5):1923-8. doi: 10.1073/pnas.1221742110. Grueter BA, Robison AJ, Neve RL, Nestler EJ, Malenka RC. Source Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA 94305, USA. Abstract Synaptic modifications in nucleus accumbens (NAc) medium spiny neurons (MSNs) play a […]