A search of PubMed, CINAHL, and ECRI (a quality and risk management resource) for combinations of these terms:
Call lights, call buttons, intercoms, stimuli
Patients, beds, rooms
Nurses, nursing
Response time, reaction time, attention
(call lights OR call buttons OR alarms) AND (patients OR beds OR rooms) AND (nurses OR nursing) AND (response time OR reaction time)…identified many articles about reducing the rate of call light use by implementing hourly/intentional/comfort rounding, as well as the association between call light use and falls. Below are a couple of references that explore how psychological factors may be associated with response time.

Kalisch BJ, et al. Nursing teamwork and time to respond to call lights: an exploratory study. Rev Lat Am Enfermagem. 2013 Jan-Feb;21 Spec No:242-9.

Tzeng HM. Perspectives of staff nurses toward patient- and family-initiated call light usage and response time to call lights. Appl Nurs Res. 2011 Feb;24(1):59-63. doi: 10.1016/j.apnr.2009.03.003. Epub 2009 Jul 9.

A Google search for no pass zone patient call lights identified several hospitals that have rolled out campaigns with this name, but there doesn’t seem to be anything in the traditional published literature about them. Here is information from a couple of hospitals in case you want to contact them directly for additional information.

http://nursing.advanceweb.com/News/Regional-News/Bronx-NY-Montefiore-Establishes-No-Passing-Zone.aspx

http://healthleadersmedia.com/content/NRS-250810/Nurses-Find-Simple-Ways-to-Improve-Satisfaction##

http://1199seiubenefits.org/wp-content/uploads/2012/01/Mt.-Sinai-Powerpoint.pdf

This question seems to be similar to alert fatigue with use of alerts in clinical systems. After browsing some of those references in PubMed, I applied the subject headings
(“Human engineering”[mesh] OR “Hospital communication systems”[mesh]) AND (“Reaction time”[mesh] OR “time factors”[mesh]) AND nurses AND (falls OR patient satisfaction)
The most relevant reference in this search is below. It discusses use of a different technology.
Guarascio-Howard L. Examination of wireless technology to improve nurse communication, response time to bed alarms, and patient safety. HERD. 2011 Winter;4(2):109-20.