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“Got milk?” For a group of Hamilton student researchers, the well-known slogan might be modified to “Got calcium?” The most abundant metal in our bodies and a valuable component of milk, calcium serves functions well beyond building strong teeth and bones. Hamilton research students, working with Douglas Weldon, the Stone Professor of Psychology, are examining how our mental processes depend on calcium.  The compound performs lesser known, but essential, roles in blood clotting, chemical signaling and action potential firing.

Everyone uses language on a daily basis, but few question exactly how we understand what another person is saying.  Interpreting gestures and sounds seems natural to us, yet there is a much deeper and more scientific explanation to it all.

Picking up a spoon to stir your morning coffee seems uncomplicated enough, right? We simply see the object and move our hand until it is close enough to grab it. But how much harder does it become if the object gets smaller or farther away from us? Or what happens when we start using our non-dominant hand? Perhaps most of us could make an educated guess at how much harder it would make the task, but Paul Fitts took it one step further beyond just estimating.

Picking up a spoon to stir your morning coffee seems uncomplicated enough, right? We simply see the object and move our hand until it is close enough to grab it. But how much harder does it become if the object gets smaller or farther away from us? Or what happens when we start using our non-dominant hand? Perhaps most of us could make an educated guess at how much harder it would make the task, but Paul Fitts took it one step further beyond just estimating.

Research has found that it’s more startling to hear a single loud sound than a soft sound followed by a loud sound. This neurological phenomenon is called pre-pulse inhibition and exists so that the body can adapt to loud stimuli when it is supplied with a warning. Allison Reeder ’14 has been awarded a science summer research grant to study pre-pulse inhibition in rats under the direction of Stone Professor of Psychology Douglas Weldon.

Pharmaceutical research is usually dominated by corporations and large research universities, but student researchers Hallie Brown ’13, Summer Bottini ’14, Scott Pillette ’14 and Liza Gergenti ’14 are conducting preliminary animal trials on the psychoactive drug Quinpirole as Hamilton undergraduates. They’re studying Quinpirole’s effect on contrafreeloading under the direction of Visiting Assistant Professor of Psychology Michael Frederick.

The ability to pick up an object without knocking it over is something that most people take for granted, but Emma Geduldig ’13, Sarah Andrews ’14 and John Wildman ’15 are more inquisitive when it comes to movement and motor control. Why, they ask, do we move to pick up a coffee cup from the side as opposed to the front? Such simple questions on human motion have yet to be entirely answered, and these researchers hope to shed more light on this seldom- researched subject.