Using Impulsive Behavior to Identify Presence of Disease
Wednesday Lab 9:00 Am, PAI 1.40
TA: Erin Reed
Impulsive behavior, or acting without premeditation, can be divided into four separate categories: reflection impulsivity, impulsive action, impulsive choice, and risky behavior (Ohmura et al., 2012). Its categories are defined as follows: reflection impulsivity occurs when a choice is made without collecting sufficient information necessary to make the choice, impulsive action is defined as both deficit in waiting and deficit in stopping, the extent in which the subject is not able to stop an action before or once the subject puts forth the action, respectfully, impulsive choice is choosing an immediate reward over waiting …show more content…
The function of HTR2B is to bind serotonin, a neurotransmitter that aids in transmitting signals from one neuron to another.
Dopamine release in the nucleus accumbens is associated with the degree of impulsivity. If the release of dopamine is increased, the more impulsive the behavior is. To test this relationship, a manipulation of nicotine injections was used to stimulate the release of dopamine, and the effects of the dopamine levels on the degree of impulsive behavior was measured (Ohmura et al., 2012). DIFF WAYS TO MEASURE …show more content…
The method tests to see if the type of reward or the time it takes to get a reward weighs more with the subject… the more impulsive subject preferring the immediate reward over waiting for a larger reward. The core of the nucleus accumbens (NAcc) is where delayed discounting is based. If there are lesions in this area, subjects will gravitate toward choosing the immediate reward. Those who choose waiting for a larger reward have increased release of dopamine in their lateral prefrontal cortex and orbitofrontal cortex compared to the more impulsive subjects, those who choose the immediate reward, where there is increased activity in the ventral striatum and medial prefrontal cortex. RESULTS WHAT THE RESULTS MEAN IN TERMS OF IMPULSIVE BEHAVIOR HOW IT CAN BE USED TO IDENTIFY DISEASE Patients with ADHS and schizophrenia have volumetric reductions in their frontal lobes (OHMURA, REWRITE SENTENCE)
Works Cited
Bevilacqua, L. AND??. (2010). A population – specific HTR2B stop codon predisposes to severe impulsivity. Nature, 468,
Wednesday Lab 9:00 Am, PAI 1.40
TA: Erin Reed
Impulsive behavior, or acting without premeditation, can be divided into four separate categories: reflection impulsivity, impulsive action, impulsive choice, and risky behavior (Ohmura et al., 2012). Its categories are defined as follows: reflection impulsivity occurs when a choice is made without collecting sufficient information necessary to make the choice, impulsive action is defined as both deficit in waiting and deficit in stopping, the extent in which the subject is not able to stop an action before or once the subject puts forth the action, respectfully, impulsive choice is choosing an immediate reward over waiting …show more content…
The function of HTR2B is to bind serotonin, a neurotransmitter that aids in transmitting signals from one neuron to another.
Dopamine release in the nucleus accumbens is associated with the degree of impulsivity. If the release of dopamine is increased, the more impulsive the behavior is. To test this relationship, a manipulation of nicotine injections was used to stimulate the release of dopamine, and the effects of the dopamine levels on the degree of impulsive behavior was measured (Ohmura et al., 2012). DIFF WAYS TO MEASURE …show more content…
The method tests to see if the type of reward or the time it takes to get a reward weighs more with the subject… the more impulsive subject preferring the immediate reward over waiting for a larger reward. The core of the nucleus accumbens (NAcc) is where delayed discounting is based. If there are lesions in this area, subjects will gravitate toward choosing the immediate reward. Those who choose waiting for a larger reward have increased release of dopamine in their lateral prefrontal cortex and orbitofrontal cortex compared to the more impulsive subjects, those who choose the immediate reward, where there is increased activity in the ventral striatum and medial prefrontal cortex. RESULTS WHAT THE RESULTS MEAN IN TERMS OF IMPULSIVE BEHAVIOR HOW IT CAN BE USED TO IDENTIFY DISEASE Patients with ADHS and schizophrenia have volumetric reductions in their frontal lobes (OHMURA, REWRITE SENTENCE)
Works Cited
Bevilacqua, L. AND??. (2010). A population – specific HTR2B stop codon predisposes to severe impulsivity. Nature, 468,