Calling ALL Chemists

Do you mean to ask what the bonds are or what molecule it is? Because it's dopamine.

 

Covalent one.

Not that I know which bond you are interested in, but all bonds in the molecule of this particular compound are covalent, so I bet it is a correct answer.

 

Actually it's far more complicated than that, some studies suggest that without dopamine it is possible for a creature to experience pleasure but will not have any drive to seek pleasure. Thus dopamine could be important in reward anticipation rather than reward itself.

http://www.ncbi.nlm.nih.gov/pubmed/18320725

 

Dopamine is involved in many different processes and low dopamine is associated with depression, ADHD and Parkinson's to name a few.

 

Parkinson's is caused by the death of dopamine excreting cells, the exact cause of the die off is unknown but it isn't because sufferers didn't have enough fun.