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Related Concept Videos

Human Genetics01:28

Human Genetics

Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
Drug Abuse and Addiction: Pharmacological Phenomena01:15

Drug Abuse and Addiction: Pharmacological Phenomena

Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not necessarily...
Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
Drug Dependence01:17

Drug Dependence

Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...

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Gene copy number variation in schizophrenia.

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Gene copy number variation in schizophrenia.

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Endosomal location of dopamine receptors in neuronal cell cytoplasm.

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In silico discrimination of single nucleotide polymorphisms and pathological mutations in human gene promoter regions by means of local DNA sequence context and regularity.

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Related Experiment Video

Updated: Jul 2, 2026

Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
08:14

Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience

Published on: August 26, 2014

Will we ever find the genes for addiction?

Paul R Buckland1

  • 1Department of Psychological Medicine, Cardiff University, Heath Park, Cardiff, UK. buckland@cf.ac.uk

Addiction (Abingdon, England)
|August 19, 2008
PubMed
Summary

Identifying genes linked to addiction is challenging due to complex factors. While genome-wide association studies show promise, larger samples and advanced methods are needed to pinpoint genetic susceptibility variants for addiction.

Area of Science:

  • Genetics
  • Neurobiology
  • Addiction Research

Background:

  • Genetic factors play a role in addiction, but identifying specific susceptibility genes remains difficult.
  • Previous research has yielded limited success in pinpointing genes related to addiction.
  • The complexity of addiction, including environmental influences and a poorly defined phenotype, complicates genetic studies.

Purpose of the Study:

  • To evaluate the feasibility of identifying genes predisposing to addiction.
  • To present genetic findings on addiction in an accessible format for a general audience.

Main Methods:

  • Review of existing evidence on the genetic contribution to addiction.
  • Analysis of the progress and challenges in identifying addiction-related genes.

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Investigating Drivers of Antireward in Addiction Behavior with Anatomically Specific Single-Cell Gene Expression Methods

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Related Experiment Videos

Last Updated: Jul 2, 2026

Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
08:14

Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience

Published on: August 26, 2014

A Conflict Model of Reward-seeking Behavior in Male Rats
06:11

A Conflict Model of Reward-seeking Behavior in Male Rats

Published on: February 20, 2019

Investigating Drivers of Antireward in Addiction Behavior with Anatomically Specific Single-Cell Gene Expression Methods
09:29

Investigating Drivers of Antireward in Addiction Behavior with Anatomically Specific Single-Cell Gene Expression Methods

Published on: August 4, 2022

Main Results:

  • Genome-wide association studies (GWAS) are increasingly successful but require larger sample sizes and novel statistical approaches.
  • The heritability of addiction is unclear and potentially small compared to other complex disorders.
  • Distinguishing between genes related to drug propensity and those involved in the addiction process itself is a significant challenge.

Conclusions:

  • The underlying biological process of addiction is the primary target for genetic investigation.
  • Even large-scale GWAS may not fully identify the most impactful addiction genes.
  • Future research combining neurobiology, genetics, and biological analysis is crucial for understanding addiction susceptibility.