Explain why treating individuals with Antisocial Personality Disorder can be difficult.
Antisocial Personality Disorder is a disorder in which an individual acts purely out of self interest with little empathy or regard for others. Such individuals often are skilled socially and are good at manipulating others. It is difficult to treat people with this disorder because many avoid treatment, and even those that do undergo treatment may manipulate the therapist rather than seriously delving into the treatment.
Explain how an external signaling molecule and cause an internal cellular response.
An external signal will bind to a specific cell receptor located on the cell membrane. This binding of the signal to the receptor will result in a conformational change in the receptor, which can then cause a signal transduction and cascade in which second messengers are activated. The end result of the signal transduction may be activation of specific proteins or alterations in gene expression.
What are two examples of brain imaging techniques? Explain what these methods tell us about the brain.
1. Functional magnetic resonance imaging (fMRI): This method helps localize different brain functions to specific regions in the brain by measuring changes in blood flow. 2. Electroencephalogram (EEG): EEG's measure the electrical patterns of the brain. Electrodes are places on the scalp of the participant, and these electrodes measure the electric fields produced by populations of neurons.